| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1211635 | minh30082008 | Robots (APIO13_robots) | C++20 | Compilation error | 0 ms | 0 KiB |
#include <bits/stdc++.h>
using namespace std;
struct Robot {
int minLabel, maxLabel;
int x, y;
};
struct State {
vector<Robot> robots;
int pushes;
// Sort state to avoid duplicates due to permutation of robot vector
bool operator<(const State& other) const {
auto a = robots, b = other.robots;
sort(a.begin(), a.end(), [](Robot r1, Robot r2) {
return r1.minLabel < r2.minLabel;
});
sort(b.begin(), b.end(), [](Robot r1, Robot r2) {
return r1.minLabel < r2.minLabel;
});
return a < b;
}
};
// Directions: up, right, down, left
const int dx[4] = {-1, 0, 1, 0};
const int dy[4] = {0, 1, 0, -1};
int w, h, n;
vector<string> grid;
// Kiểm tra hợp lệ vị trí
bool is_valid(int x, int y) {
return x >= 0 && y >= 0 && x < h && y < w && grid[x][y] != 'x';
}
// Xoay hướng
int rotate_dir(int dir, char plate) {
return plate == 'A' ? (dir + 3) % 4 : (dir + 1) % 4; // A: left, C: right
}
// Tạo hash cho trạng thái robot
string encode_state(const vector<Robot>& robots) {
vector<string> s;
for (auto& r : robots) {
s.push_back(to_string(r.minLabel) + "-" + to_string(r.maxLabel) + "@" + to_string(r.x) + "," + to_string(r.y));
}
sort(s.begin(), s.end());
string res;
for (auto& e : s) res += e + "|";
return res;
}
// Tìm robot cùng vị trí có thể hợp nhất
void merge(vector<Robot>& robots) {
map<pair<int, int>, vector<int>> pos;
for (int i = 0; i < robots.size(); i++) {
pos[{robots[i].x, robots[i].y}].push_back(i);
}
bool changed = true;
while (changed) {
changed = false;
for (auto& [p, idxs] : pos) {
vector<int> new_idxs;
for (int i = 0; i < idxs.size(); ++i) {
for (int j = i + 1; j < idxs.size(); ++j) {
auto& r1 = robots[idxs[i]];
auto& r2 = robots[idxs[j]];
if (abs(r1.minLabel - r2.maxLabel) == 1 || abs(r2.minLabel - r1.maxLabel) == 1 ||
abs(r1.maxLabel - r2.minLabel) == 1 || abs(r2.maxLabel - r1.minLabel) == 1) {
// Merge
Robot merged = {
min(r1.minLabel, r2.minLabel),
max(r1.maxLabel, r2.maxLabel),
r1.x, r1.y
};
robots.erase(robots.begin() + idxs[j]);
robots.erase(robots.begin() + idxs[i]);
robots.push_back(merged);
changed = true;
break;
}
}
if (changed) break;
}
if (changed) break;
}
pos.clear();
for (int i = 0; i < robots.size(); i++) {
pos[{robots[i].x, robots[i].y}].push_back(i);
}
}
}
int bfs(vector<Robot> start) {
queue<State> q;
set<string> visited;
q.push({start, 0});
visited.insert(encode_state(start));
while (!q.empty()) {
State cur = q.front(); q.pop();
if (cur.robots.size() == 1 && cur.robots[0].minLabel == 1 && cur.robots[0].maxLabel == n) {
return cur.pushes;
}
for (int i = 0; i < cur.robots.size(); ++i) {
for (int d = 0; d < 4; ++d) {
Robot r = cur.robots[i];
int dir = d;
// Nếu đứng trên plate xoay thì xoay trước
if (grid[r.x][r.y] == 'A' || grid[r.x][r.y] == 'C') {
dir = rotate_dir(dir, grid[r.x][r.y]);
}
int nx = r.x + dx[dir], ny = r.y + dy[dir];
while (is_valid(nx, ny)) {
// Nếu gặp plate xoay khi di chuyển
if (grid[nx][ny] == 'A' || grid[nx][ny] == 'C') {
dir = rotate_dir(dir, grid[nx][ny]);
}
int tx = nx + dx[dir], ty = ny + dy[dir];
if (!is_valid(tx, ty)) break;
nx = tx;
ny = ty;
}
vector<Robot> next = cur.robots;
next[i].x = nx;
next[i].y = ny;
merge(next);
string enc = encode_state(next);
if (!visited.count(enc)) {
visited.insert(enc);
q.push({next, cur.pushes + 1});
}
}
}
}
return -1;
}
int main() {
cin >> n >> w >> h;
grid.resize(h);
vector<Robot> robots;
for (int i = 0; i < h; ++i) {
cin >> grid[i];
for (int j = 0; j < w; ++j) {
if (isdigit(grid[i][j])) {
int label = grid[i][j] - '0';
robots.push_back({label, label, i, j});
}
}
}
cout << bfs(robots) << "\n";
return 0;
}
Compilation message (stderr)
robots.cpp: In member function 'bool State::operator<(const State&) const':
robots.cpp:22:18: error: no match for 'operator<' (operand types are 'std::vector<Robot>' and 'std::vector<Robot>')
22 | return a < b;
| ~ ^ ~
| | |
| | vector<[...]>
| vector<[...]>
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from robots.cpp:1:
/usr/include/c++/11/bits/regex.h:1244:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Alloc> auto std::__cxx11::operator<=>(const std::__cxx11::sub_match<_BiIter>&, std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)' (reversed)
1244 | operator<=>(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1244:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from robots.cpp:1:
/usr/include/c++/11/bits/regex.h:1412:5: note: candidate: 'template<class _Bi_iter> auto std::__cxx11::operator<=>(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)' (reversed)
1412 | operator<=>(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1412:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from robots.cpp:1:
/usr/include/c++/11/bits/regex.h:1585:5: note: candidate: 'template<class _Bi_iter> auto std::__cxx11::operator<=>(const std::__cxx11::sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)' (reversed)
1585 | operator<=>(const sub_match<_Bi_iter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1585:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:538:5: note: candidate: 'template<class _IteratorL, class _IteratorR> requires three_way_comparable_with<_IteratorR, _IteratorL, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&)' (reversed)
538 | operator<=>(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:538:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::reverse_iterator<_IteratorL>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1596:5: note: candidate: 'template<class _IteratorL, class _IteratorR> requires three_way_comparable_with<_IteratorR, _IteratorL, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)' (reversed)
1596 | operator<=>(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1596:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::move_iterator<_IteratorL>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from robots.cpp:1:
/usr/include/c++/11/string_view:556:5: note: candidate: 'template<class _CharT, class _Traits> constexpr decltype (__char_traits_cmp_cat<_Traits>(0)) std::operator<=>(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)' (reversed)
556 | operator<=>(basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:556:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from robots.cpp:1:
/usr/include/c++/11/bits/basic_string.h:6276:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> decltype (__char_traits_cmp_cat<_Traits>(0)) std::operator<=>(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const _CharT*)' (reversed)
6276 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6276:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/functional:54,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from robots.cpp:1:
/usr/include/c++/11/tuple:1557:5: note: candidate: 'template<class ... _Tps, class ... _Ups> constexpr std::common_comparison_category_t<decltype (std::__detail::__synth3way(declval<_Tps&>(), declval<_Ups&>()))...> std::operator<=>(const std::tuple<_Tps ...>&, const std::tuple<_UTypes ...>&)' (reversed)
1557 | operator<=>(const tuple<_Tps...>& __t, const tuple<_Ups...>& __u)
| ^~~~~~~~
/usr/include/c++/11/tuple:1557:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::tuple<_Tps ...>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from robots.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:895:5: note: candidate: 'template<class _Tp, class _Dp, class _Up, class _Ep> requires three_way_comparable_with<typename std::unique_ptr<_Tp, _Dp>::pointer, typename std::unique_ptr<_Up, _Ep>::pointer, std::partial_ordering> std::compare_three_way_result_t<typename std::unique_ptr<_Tp, _Dp>::pointer, typename std::unique_ptr<_Up, _Ep>::pointer> std::operator<=>(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)' (reversed)
895 | operator<=>(const unique_ptr<_Tp, _Dp>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:895:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from robots.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:903:5: note: candidate: 'template<class _Tp, class _Dp> requires three_way_comparable<typename std::unique_ptr<_Tp, _Dp>::pointer, std::partial_ordering> std::compare_three_way_result_t<typename std::unique_ptr<_Tp, _Dp>::pointer> std::operator<=>(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)' (reversed)
903 | operator<=>(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:903:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/shared_ptr.h:53,
from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from robots.cpp:1:
/usr/include/c++/11/bits/shared_ptr_base.h:1422:5: note: candidate: 'template<class _Tp, class _Up, __gnu_cxx::_Lock_policy _Lp> std::strong_ordering std::operator<=>(const std::__shared_ptr<_Tp1, _Lp>&, const std::__shared_ptr<_Tp2, _Lp>&)' (reversed)
1422 | operator<=>(const __shared_ptr<_Tp, _Lp>& __a,
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1422:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__shared_ptr<_Tp1, _Lp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/shared_ptr.h:53,
from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from robots.cpp:1:
/usr/include/c++/11/bits/shared_ptr_base.h:1428:5: note: candidate: 'template<class _Tp, __gnu_cxx::_Lock_policy _Lp> std::strong_ordering std::operator<=>(const std::__shared_ptr<_Tp, _Lp>&, std::nullptr_t)' (reversed)
1428 | operator<=>(const __shared_ptr<_Tp, _Lp>& __a, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr_base.h:1428:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__shared_ptr<_Tp, _Lp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from robots.cpp:1:
/usr/include/c++/11/bits/shared_ptr.h:449:5: note: candidate: 'template<class _Tp, class _Up> std::strong_ordering std::operator<=>(const std::shared_ptr<_Tp>&, const std::shared_ptr<_Tp>&)' (reversed)
449 | operator<=>(const shared_ptr<_Tp>& __a,
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:449:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::shared_ptr<_Tp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/memory:77,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:82,
from robots.cpp:1:
/usr/include/c++/11/bits/shared_ptr.h:455:5: note: candidate: 'template<class _Tp> std::strong_ordering std::operator<=>(const std::shared_ptr<_Tp>&, std::nullptr_t)' (reversed)
455 | operator<=>(const shared_ptr<_Tp>& __a, nullptr_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/bits/shared_ptr.h:455:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::shared_ptr<_Tp>'
22 | return a < b;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from robots.cpp:1:
/usr/include/c++/11/optional:1096:5: note: candidate: 'template<class _Tp, class _Up> requires three_way_comparable_with<_Up, _Tp, std::partial_ordering> constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const std::optional<_Tp>&, const std::optional<_Up>&)' (reversed)
1096 | operator<=>(const optional<_Tp>& __x, const optional<_Up>& __y)
| ^~~~~~~~
/usr/include/c++/11/optional:1096:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::optional<_Tp>'
22 | return a < b;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from robots.cpp:1:
/usr/include/c++/11/optional:1111:5: note: candidate: 'template<class _Tp> constexpr std::strong_ordering std::operator<=>(const std::optional<_Tp>&, std::nullopt_t)' (reversed)
1111 | operator<=>(const optional<_Tp>& __x, nullopt_t) noexcept
| ^~~~~~~~
/usr/include/c++/11/optional:1111:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::optional<_Tp>'
22 | return a < b;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:130,
from robots.cpp:1:
/usr/include/c++/11/optional:1253:5: note: candidate: 'template<class _Tp, class _Up> requires !(__is_optional_v<_Up>) && (three_way_comparable_with<_Tp, _Up, std::partial_ordering>) constexpr std::compare_three_way_result_t<_IteratorL, _IteratorR> std::operator<=>(const std::optional<_Tp>&, const _Up&)' (reversed)
1253 | operator<=>(const optional<_Tp>& __x, const _Up& __v)
| ^~~~~~~~
/usr/include/c++/11/optional:1253:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::optional<_Tp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1129:5: note: candidate: 'template<class _IteratorL, class _IteratorR, class _Container> constexpr std::__detail::__synth3way_t<_IteratorR, _IteratorL> __gnu_cxx::operator<=>(const __gnu_cxx::__normal_iterator<_IteratorL, _Container>&, const __gnu_cxx::__normal_iterator<_IteratorR, _Container>&)' (reversed)
1129 | operator<=>(const __normal_iterator<_IteratorL, _Container>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1129:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const __gnu_cxx::__normal_iterator<_IteratorL, _Container>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/regex:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:110,
from robots.cpp:1:
/usr/include/c++/11/bits/regex.h:1072:5: note: candidate: 'template<class _BiIter> auto std::__cxx11::operator<=>(const std::__cxx11::sub_match<_BiIter>&, const std::__cxx11::sub_match<_BiIter>&)' (rewritten)
1072 | operator<=>(const sub_match<_BiIter>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/regex.h:1072:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:64,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_pair.h:473:5: note: candidate: 'template<class _T1, class _T2> constexpr std::common_comparison_category_t<decltype (std::__detail::__synth3way(declval<_T1&>(), declval<_T1&>())), decltype (std::__detail::__synth3way(declval<_T2&>(), declval<_T2&>()))> std::operator<=>(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)' (rewritten)
473 | operator<=>(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_pair.h:473:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::pair<_T1, _T2>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:554:5: note: candidate: 'template<class _Iterator> requires three_way_comparable<_Iterator, std::partial_ordering> constexpr std::compare_three_way_result_t<_Iterator, _Iterator> std::operator<=>(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorL>&)' (rewritten)
554 | operator<=>(const reverse_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:554:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::reverse_iterator<_IteratorL>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1655:5: note: candidate: 'template<class _Iterator> requires three_way_comparable<_Iterator, std::partial_ordering> constexpr std::compare_three_way_result_t<_Iterator, _Iterator> std::operator<=>(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)' (rewritten)
1655 | operator<=>(const move_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1655:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::move_iterator<_IteratorL>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/basic_string.h:48,
from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from robots.cpp:1:
/usr/include/c++/11/string_view:549:5: note: candidate: 'template<class _CharT, class _Traits> constexpr decltype (__char_traits_cmp_cat<_Traits>(0)) std::operator<=>(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)' (rewritten)
549 | operator<=>(basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/11/string_view:549:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'std::basic_string_view<_CharT, _Traits>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/string:55,
from /usr/include/c++/11/bits/locale_classes.h:40,
from /usr/include/c++/11/bits/ios_base.h:41,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from robots.cpp:1:
/usr/include/c++/11/bits/basic_string.h:6262:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> decltype (__char_traits_cmp_cat<_Traits>(0)) std::operator<=>(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)' (rewritten)
6262 | operator<=>(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/basic_string.h:6262:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/tuple:39,
from /usr/include/c++/11/functional:54,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from robots.cpp:1:
/usr/include/c++/11/array:282:5: note: candidate: 'template<class _Tp, long unsigned int _Nm> constexpr std::__detail::__synth3way_t<_T1> std::operator<=>(const std::array<_Tp, _Nm>&, const std::array<_Tp, _Nm>&)' (rewritten)
282 | operator<=>(const array<_Tp, _Nm>& __a, const array<_Tp, _Nm>& __b)
| ^~~~~~~~
/usr/include/c++/11/array:282:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::array<_Tp, _Nm>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/vector:67,
from /usr/include/c++/11/functional:62,
from /usr/include/c++/11/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/11/algorithm:74,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:65,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_vector.h:1910:5: note: candidate: 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)' (rewritten)
1910 | operator<=>(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_vector.h:1910:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/11/bits/stl_pair.h:65,
from /usr/include/c++/11/bits/stl_algobase.h:64,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/compare: In substitution of 'template<class _Tp, class _Up> using __synth3way_t = decltype (std::__detail::__synth3way(declval<_Tp&>(), declval<_Up&>())) [with _Tp = Robot; _Up = Robot]':
/usr/include/c++/11/bits/stl_vector.h:1910:5: required by substitution of 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&) [with _Tp = Robot; _Alloc = std::allocator<Robot>]'
robots.cpp:22:20: required from here
/usr/include/c++/11/compare:915:41: error: no match for call to '(const std::__detail::_Synth3way) (Robot&, Robot&)'
915 | = decltype(__detail::__synth3way(std::declval<_Tp&>(),
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
916 | std::declval<_Up&>()));
| ~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/compare:890:9: note: candidate: 'template<class _Tp, class _Up> constexpr auto std::__detail::_Synth3way::operator()(const _Tp&, const _Up&) const requires requires{{std::__detail::_Synth3way::operator()::__t < std::__detail::_Synth3way::operator()::__u} -> decltype(auto) [requires std::__detail::__boolean_testable<<placeholder>, >];{std::__detail::_Synth3way::operator()::__u < std::__detail::_Synth3way::operator()::__t} -> decltype(auto) [requires std::__detail::__boolean_testable<<placeholder>, >];}'
890 | operator()(const _Tp& __t, const _Up& __u) const
| ^~~~~~~~
/usr/include/c++/11/compare:890:9: note: template argument deduction/substitution failed:
/usr/include/c++/11/compare:890:9: note: constraints not satisfied
/usr/include/c++/11/compare: In substitution of 'template<class _Tp, class _Up> constexpr auto std::__detail::_Synth3way::operator()(const _Tp&, const _Up&) const requires requires{{__t < __u} -> decltype(auto) [requires std::__detail::__boolean_testable<<placeholder>, >];{__u < __t} -> decltype(auto) [requires std::__detail::__boolean_testable<<placeholder>, >];} [with _Tp = Robot; _Up = Robot]':
/usr/include/c++/11/compare:915:34: required by substitution of 'template<class _Tp, class _Up> using __synth3way_t = decltype (std::__detail::__synth3way(declval<_Tp&>(), declval<_Up&>())) [with _Tp = Robot; _Up = Robot]'
/usr/include/c++/11/bits/stl_vector.h:1910:5: required by substitution of 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&) [with _Tp = Robot; _Alloc = std::allocator<Robot>]'
robots.cpp:22:20: required from here
/usr/include/c++/11/compare:890:2: required by the constraints of 'template<class _Tp, class _Up> constexpr auto std::__detail::_Synth3way::operator()(const _Tp&, const _Up&) const requires requires{{__t < __u} -> decltype(auto) [requires std::__detail::__boolean_testable<<placeholder>, >];{__u < __t} -> decltype(auto) [requires std::__detail::__boolean_testable<<placeholder>, >];}'
/usr/include/c++/11/compare:892:11: in requirements [with _Up = Robot; _Tp = Robot]
/usr/include/c++/11/compare:894:17: note: the required expression '(__t < __u)' is invalid
894 | { __t < __u } -> __boolean_testable;
| ~~~~^~~~~
/usr/include/c++/11/compare:895:17: note: the required expression '(__u < __t)' is invalid
895 | { __u < __t } -> __boolean_testable;
| ~~~~^~~~~
/usr/include/c++/11/compare: In substitution of 'template<class _Tp, class _Up> using __synth3way_t = decltype (std::__detail::__synth3way(declval<_Tp&>(), declval<_Up&>())) [with _Tp = Robot; _Up = Robot]':
/usr/include/c++/11/bits/stl_vector.h:1910:5: required by substitution of 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&) [with _Tp = Robot; _Alloc = std::allocator<Robot>]'
robots.cpp:22:20: required from here
cc1plus: note: set '-fconcepts-diagnostics-depth=' to at least 2 for more detail
In file included from /usr/include/c++/11/deque:67,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:68,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_deque.h:2265:5: note: candidate: 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::deque<_Tp, _Alloc>&, const std::deque<_Tp, _Alloc>&)' (rewritten)
2265 | operator<=>(const deque<_Tp, _Alloc>& __x, const deque<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_deque.h:2265:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::deque<_Tp, _Alloc>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/list:63,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:79,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_list.h:2065:5: note: candidate: 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::__cxx11::list<_Tp, _Alloc>&, const std::__cxx11::list<_Tp, _Alloc>&)' (rewritten)
2065 | operator<=>(const list<_Tp, _Alloc>& __x, const list<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_list.h:2065:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::__cxx11::list<_Tp, _Alloc>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/map:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_map.h:1484:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> std::__detail::__synth3way_t<std::pair<const _Key, _Tp> > std::operator<=>(const std::map<_Key, _Tp, _Compare, _Allocator>&, const std::map<_Key, _Tp, _Compare, _Allocator>&)' (rewritten)
1484 | operator<=>(const map<_Key, _Tp, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_map.h:1484:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::map<_Key, _Tp, _Compare, _Allocator>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/map:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:81,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_multimap.h:1149:5: note: candidate: 'template<class _Key, class _Tp, class _Compare, class _Alloc> std::__detail::__synth3way_t<std::pair<const _Key, _Tp> > std::operator<=>(const std::multimap<_Key, _Tp, _Compare, _Allocator>&, const std::multimap<_Key, _Tp, _Compare, _Allocator>&)' (rewritten)
1149 | operator<=>(const multimap<_Key, _Tp, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_multimap.h:1149:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::multimap<_Key, _Tp, _Compare, _Allocator>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/queue:64,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:86,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_queue.h:392:5: note: candidate: 'template<class _Tp, class _Seq> requires three_way_comparable<_Seq, std::partial_ordering> std::compare_three_way_result_t<_Seq> std::operator<=>(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)' (rewritten)
392 | operator<=>(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_queue.h:392:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::queue<_Tp, _Seq>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/set:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_set.h:1006:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::set<_Key, _Compare, _Allocator>&, const std::set<_Key, _Compare, _Allocator>&)' (rewritten)
1006 | operator<=>(const set<_Key, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_set.h:1006:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::set<_Key, _Compare, _Allocator>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/set:62,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:87,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_multiset.h:992:5: note: candidate: 'template<class _Key, class _Compare, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::multiset<_Key, _Compare, _Allocator>&, const std::multiset<_Key, _Compare, _Allocator>&)' (rewritten)
992 | operator<=>(const multiset<_Key, _Compare, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_multiset.h:992:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::multiset<_Key, _Compare, _Allocator>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/stack:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:89,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_stack.h:367:5: note: candidate: 'template<class _Tp, class _Seq> requires three_way_comparable<_Seq, std::partial_ordering> std::compare_three_way_result_t<_Seq> std::operator<=>(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)' (rewritten)
367 | operator<=>(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_stack.h:367:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::stack<_Tp, _Seq>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/forward_list:38,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:104,
from robots.cpp:1:
/usr/include/c++/11/bits/forward_list.h:1446:5: note: candidate: 'template<class _Tp, class _Alloc> std::__detail::__synth3way_t<_T1> std::operator<=>(const std::forward_list<_Tp, _Alloc>&, const std::forward_list<_Tp, _Alloc>&)' (rewritten)
1446 | operator<=>(const forward_list<_Tp, _Alloc>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/forward_list.h:1446:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::forward_list<_Tp, _Alloc>'
22 | return a < b;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:133,
from robots.cpp:1:
/usr/include/c++/11/variant:1246:5: note: candidate: 'template<class ... _Types> requires (three_way_comparable<_Types, std::partial_ordering> && ...) constexpr std::common_comparison_category_t<typename std::__detail::__cmp3way_res_impl<_Types, _Types>::type ...> std::operator<=>(const std::variant<_Types ...>&, const std::variant<_Types ...>&)' (rewritten)
1246 | operator<=>(const variant<_Types...>& __v, const variant<_Types...>& __w)
| ^~~~~~~~
/usr/include/c++/11/variant:1246:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::variant<_Types ...>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1146:5: note: candidate: 'template<class _Iterator, class _Container> constexpr std::__detail::__synth3way_t<_T1> __gnu_cxx::operator<=>(const __gnu_cxx::__normal_iterator<_Iterator, _Container>&, const __gnu_cxx::__normal_iterator<_Iterator, _Container>&)' (rewritten)
1146 | operator<=>(const __normal_iterator<_Iterator, _Container>& __lhs,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1146:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const __gnu_cxx::__normal_iterator<_Iterator, _Container>'
22 | return a < b;
| ^
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:142,
from robots.cpp:1:
/usr/include/c++/11/coroutine:144:3: note: candidate: 'constexpr std::strong_ordering std::__n4861::operator<=>(std::__n4861::coroutine_handle<void>, std::__n4861::coroutine_handle<void>)' (rewritten)
144 | operator<=>(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
| ^~~~~~~~
/usr/include/c++/11/coroutine:144:34: note: no known conversion for argument 1 from 'std::vector<Robot>' to 'std::__n4861::coroutine_handle<void>'
144 | operator<=>(coroutine_handle<> __a, coroutine_handle<> __b) noexcept
| ~~~~~~~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/11/bits/ios_base.h:46,
from /usr/include/c++/11/ios:42,
from /usr/include/c++/11/istream:38,
from /usr/include/c++/11/sstream:38,
from /usr/include/c++/11/complex:45,
from /usr/include/c++/11/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:54,
from robots.cpp:1:
/usr/include/c++/11/system_error:261:3: note: candidate: 'std::strong_ordering std::operator<=>(const std::error_code&, const std::error_code&)' (rewritten)
261 | operator<=>(const error_code& __lhs, const error_code& __rhs) noexcept
| ^~~~~~~~
/usr/include/c++/11/system_error:261:33: note: no known conversion for argument 1 from 'std::vector<Robot>' to 'const std::error_code&'
261 | operator<=>(const error_code& __lhs, const error_code& __rhs) noexcept
| ~~~~~~~~~~~~~~~~~~^~~~~
/usr/include/c++/11/system_error:387:3: note: candidate: 'std::strong_ordering std::operator<=>(const std::error_condition&, const std::error_condition&)' (rewritten)
387 | operator<=>(const error_condition& __lhs,
| ^~~~~~~~
/usr/include/c++/11/system_error:387:38: note: no known conversion for argument 1 from 'std::vector<Robot>' to 'const std::error_condition&'
387 | operator<=>(const error_condition& __lhs,
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:113,
from robots.cpp:1:
/usr/include/c++/11/thread:62:3: note: candidate: 'std::strong_ordering std::operator<=>(std::thread::id, std::thread::id)' (rewritten)
62 | operator<=>(thread::id __x, thread::id __y) noexcept
| ^~~~~~~~
/usr/include/c++/11/thread:62:26: note: no known conversion for argument 1 from 'std::vector<Robot>' to 'std::thread::id'
62 | operator<=>(thread::id __x, thread::id __y) noexcept
| ~~~~~~~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:133,
from robots.cpp:1:
/usr/include/c++/11/variant:1269:3: note: candidate: 'constexpr std::strong_ordering std::operator<=>(std::monostate, std::monostate)' (rewritten)
1269 | operator<=>(monostate, monostate) noexcept { return strong_ordering::equal; }
| ^~~~~~~~
/usr/include/c++/11/variant:1269:15: note: no known conversion for argument 1 from 'std::vector<Robot>' to 'std::monostate'
1269 | operator<=>(monostate, monostate) noexcept { return strong_ordering::equal; }
| ^~~~~~~~~
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:509:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::reverse_iterator<_IteratorL>&, const std::reverse_iterator<_IteratorR>&) requires requires{{std::operator<::__x->base() > std::operator<::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}'
509 | operator<(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:509:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::reverse_iterator<_IteratorL>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/stl_algobase.h:67,
from /usr/include/c++/11/bits/specfun.h:45,
from /usr/include/c++/11/cmath:1935,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:41,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_iterator.h:1609:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&) requires requires{{std::operator<::__x->base() < std::operator<::__y->base()} -> decltype(auto) [requires std::convertible_to<<placeholder>, bool>];}'
1609 | operator<(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/stl_iterator.h:1609:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::move_iterator<_IteratorL>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from robots.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:795:5: note: candidate: 'template<class _Tp, class _Dp, class _Up, class _Ep> bool std::operator<(const std::unique_ptr<_Tp, _Dp>&, const std::unique_ptr<_Up, _Ep>&)'
795 | operator<(const unique_ptr<_Tp, _Dp>& __x,
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:795:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from robots.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:807:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator<(const std::unique_ptr<_Tp, _Dp>&, std::nullptr_t)'
807 | operator<(const unique_ptr<_Tp, _Dp>& __x, nullptr_t)
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:807:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/bits/locale_conv.h:41,
from /usr/include/c++/11/locale:43,
from /usr/include/c++/11/iomanip:43,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:72,
from robots.cpp:1:
/usr/include/c++/11/bits/unique_ptr.h:816:5: note: candidate: 'template<class _Tp, class _Dp> bool std::operator<(std::nullptr_t, const std::unique_ptr<_Tp, _Dp>&)'
816 | operator<(nullptr_t, const unique_ptr<_Tp, _Dp>& __x)
| ^~~~~~~~
/usr/include/c++/11/bits/unique_ptr.h:816:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::unique_ptr<_Tp, _Dp>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/queue:64,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:86,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_queue.h:362:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator<(const std::queue<_Tp, _Seq>&, const std::queue<_Tp, _Seq>&)'
362 | operator<(const queue<_Tp, _Seq>& __x, const queue<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_queue.h:362:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::queue<_Tp, _Seq>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/stack:61,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:89,
from robots.cpp:1:
/usr/include/c++/11/bits/stl_stack.h:337:5: note: candidate: 'template<class _Tp, class _Seq> bool std::operator<(const std::stack<_Tp, _Seq>&, const std::stack<_Tp, _Seq>&)'
337 | operator<(const stack<_Tp, _Seq>& __x, const stack<_Tp, _Seq>& __y)
| ^~~~~~~~
/usr/include/c++/11/bits/stl_stack.h:337:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::stack<_Tp, _Seq>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from robots.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom1, class _Dom2> std::_Expr<std::__detail::_BinClos<std::__less, std::_Expr, std::_Expr, _Dom1, _Dom2>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const std::_Expr<_Dom2, typename _Dom2::value_type>&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from robots.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__less, std::_Expr, std::_Constant, _Dom, typename _Dom::value_type>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const std::_Expr<_Dom1, typename _Dom1::value_type>&, const typename _Dom::value_type&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from robots.cpp:1:
/usr/include/c++/11/bits/valarray_after.h:419:5: note: candidate: 'template<class _Dom> std::_Expr<std::__detail::_BinClos<std::__less, std::_Constant, std::_Expr, typename _Dom::value_type, _Dom>, typename std::__fun<std::__less, typename _Dom1::value_type>::result_type> std::operator<(const typename _Dom::value_type&, const std::_Expr<_Dom1, typename _Dom1::value_type>&)'
419 | _DEFINE_EXPR_BINARY_OPERATOR(<, struct std::__less)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/11/bits/valarray_after.h:419:5: note: template argument deduction/substitution failed:
robots.cpp:22:20: note: 'std::vector<Robot>' is not derived from 'const std::_Expr<_Dom1, typename _Dom1::value_type>'
22 | return a < b;
| ^
In file included from /usr/include/c++/11/valarray:603,
from /usr/include/x86_64-linux-gnu/c++/11/bits/stdc++.h:95,
from robots.cpp: