| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 764595 | 2023-06-23T16:15:47 Z | raysh07 | Swapping Cities (APIO20_swap) | C++17 | Compilation error |
0 ms | 0 KB |
#include "swap.h"
#include <bits/stdc++.h>
using namespace std;
struct edge{
int u, v, w;
};
int n, m;
const int maxn = 1e5 + 69;
vector <pair<int, int>> adj[maxn];
int root[maxn], mn[maxn];
set <edge> path, ans;
edge e[2 * maxn]
int mp[maxn];
int find(int x) {
if (x == root[x]) return x;
return root[x] = find(root[x]);
}
bool comp(edge x, edge y){
return x.w < y.w;
}
bool unite(int x, int y){
x = find(x); y = find(y);
if (x == y) return false;
root[y] = x;
return true;
}
edge get(int u, int v, int w){
edge ok;
ok.u = u;
ok.v = v;
ok.w = w;
return ok;
}
void dfs(int u, int need, int par){
if (need == u) ans = path;
for (auto [v, w] : adj[u]){
path.insert(get(u, v, w));
path.insert(get(v, u, w));
dfs(v, need, u);
path.erase(get(u, v, w));
path.erase(get(v, u, w));
}
}
void init(int N, int M, vector<int> U, vector<int> V, vector<int> W) {
n = N;
m = M;
vector <pair<int, pair<int, int>>> vec;
for (int i = 0; i < m; i++){
vec.push_back({W[i], {U[i], V[i]}});
}
sort(vec.begin(), vec.end());
for (int i = 0; i < m; i++){
e[i].u = vec[i].second.first;
e[i].v = vec[i].second.second;
e[i].w = vec[i].first;
}
for (int i = 0; i < n; i++){
root[i] = i;
mn[i] = 1e9 + 1;
}
for (auto x : e){
if (unite(x.u, x.v)){
adj[x.u].push_back({x.v, x.w});
adj[x.v].push_back({x.u, x.w});
} else {
mn[x.u] = min(mn[x.u], x.w);
mn[x.v] = min(mn[x.v], x.w);
}
}
}
int getMinimumFuelCapacity(int x, int y) {
dfs(x, y, -1);
for (int i = 0; i < n; i++) mp[i] = 0;
int lol = 0;
for (auto x : ans) {
lol = max(lol, x.w);
mp[x.u]++;
mp[x.v]++;
}
int l1 = 1e9 + 1;
for (int i = 0; i < m; i++){
if (ans.find(e[i]) == ans.end()){
if (mp[e[i].u] || mp[e[i].v]) l1 = min(l1, e[i].w);
}
}
if (l1 > 1e9) return -1;
else return max(l1, lol);
}
Compilation message
swap.cpp:15:1: error: expected initializer before 'int'
15 | int mp[maxn];
| ^~~
swap.cpp: In function 'void init(int, int, std::vector<int>, std::vector<int>, std::vector<int>)':
swap.cpp:63:9: error: 'e' was not declared in this scope
63 | e[i].u = vec[i].second.first;
| ^
swap.cpp:73:19: error: 'e' was not declared in this scope
73 | for (auto x : e){
| ^
swap.cpp: In function 'int getMinimumFuelCapacity(int, int)':
swap.cpp:86:33: error: 'mp' was not declared in this scope; did you mean 'mn'?
86 | for (int i = 0; i < n; i++) mp[i] = 0;
| ^~
| mn
swap.cpp:90:9: error: 'mp' was not declared in this scope; did you mean 'mn'?
90 | mp[x.u]++;
| ^~
| mn
swap.cpp:96:22: error: 'e' was not declared in this scope
96 | if (ans.find(e[i]) == ans.end()){
| ^
swap.cpp:97:17: error: 'mp' was not declared in this scope; did you mean 'mn'?
97 | if (mp[e[i].u] || mp[e[i].v]) l1 = min(l1, e[i].w);
| ^~
| mn
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h: In instantiation of 'constexpr bool std::less<_Tp>::operator()(const _Tp&, const _Tp&) const [with _Tp = edge]':
/usr/include/c++/10/bits/stl_tree.h:2101:35: required from 'std::pair<std::_Rb_tree_node_base*, std::_Rb_tree_node_base*> std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_get_insert_unique_pos(const key_type&) [with _Key = edge; _Val = edge; _KeyOfValue = std::_Identity<edge>; _Compare = std::less<edge>; _Alloc = std::allocator<edge>; std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::key_type = edge]'
/usr/include/c++/10/bits/stl_tree.h:2154:4: required from 'std::pair<std::_Rb_tree_iterator<_Val>, bool> std::_Rb_tree<_Key, _Val, _KeyOfValue, _Compare, _Alloc>::_M_insert_unique(_Arg&&) [with _Arg = edge; _Key = edge; _Val = edge; _KeyOfValue = std::_Identity<edge>; _Compare = std::less<edge>; _Alloc = std::allocator<edge>]'
/usr/include/c++/10/bits/stl_set.h:521:25: required from 'std::pair<typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Allocator>::rebind<_Key>::other>::const_iterator, bool> std::set<_Key, _Compare, _Alloc>::insert(std::set<_Key, _Compare, _Alloc>::value_type&&) [with _Key = edge; _Compare = std::less<edge>; _Alloc = std::allocator<edge>; typename std::_Rb_tree<_Key, _Key, std::_Identity<_Tp>, _Compare, typename __gnu_cxx::__alloc_traits<_Allocator>::rebind<_Key>::other>::const_iterator = std::_Rb_tree<edge, edge, std::_Identity<edge>, std::less<edge>, std::allocator<edge> >::const_iterator; std::set<_Key, _Compare, _Alloc>::value_type = edge]'
swap.cpp:45:33: required from here
/usr/include/c++/10/bits/stl_function.h:386:20: error: no match for 'operator<' (operand types are 'const edge' and 'const edge')
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:64,
from /usr/include/c++/10/vector:60,
from swap.h:1,
from swap.cpp:1:
/usr/include/c++/10/bits/stl_pair.h:489:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const std::pair<_T1, _T2>&, const std::pair<_T1, _T2>&)'
489 | operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_pair.h:489:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::pair<_T1, _T2>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/vector:60,
from swap.h:1,
from swap.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:366:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_Iterator>&)'
366 | operator<(const reverse_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:366:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::reverse_iterator<_Iterator>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/vector:60,
from swap.h:1,
from swap.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:404:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::reverse_iterator<_Iterator>&, const std::reverse_iterator<_IteratorR>&)'
404 | operator<(const reverse_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:404:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::reverse_iterator<_Iterator>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/vector:60,
from swap.h:1,
from swap.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1451:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorR>&)'
1451 | operator<(const move_iterator<_IteratorL>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1451:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::move_iterator<_IteratorL>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/vector:60,
from swap.h:1,
from swap.cpp:1:
/usr/include/c++/10/bits/stl_iterator.h:1507:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const std::move_iterator<_IteratorL>&, const std::move_iterator<_IteratorL>&)'
1507 | operator<(const move_iterator<_Iterator>& __x,
| ^~~~~~~~
/usr/include/c++/10/bits/stl_iterator.h:1507:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::move_iterator<_IteratorL>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/vector:67,
from swap.h:1,
from swap.cpp:1:
/usr/include/c++/10/bits/stl_vector.h:1930:5: note: candidate: 'template<class _Tp, class _Alloc> bool std::operator<(const std::vector<_Tp, _Alloc>&, const std::vector<_Tp, _Alloc>&)'
1930 | operator<(const vector<_Tp, _Alloc>& __x, const vector<_Tp, _Alloc>& __y)
| ^~~~~~~~
/usr/include/c++/10/bits/stl_vector.h:1930:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::vector<_Tp, _Alloc>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/basic_string.h:48,
from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/string_view:544:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(std::basic_string_view<_CharT, _Traits>, std::basic_string_view<_CharT, _Traits>)'
544 | operator< (basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/10/string_view:544:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'edge' is not derived from 'std::basic_string_view<_CharT, _Traits>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/basic_string.h:48,
from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/string_view:550:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(std::basic_string_view<_CharT, _Traits>, std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >)'
550 | operator< (basic_string_view<_CharT, _Traits> __x,
| ^~~~~~~~
/usr/include/c++/10/string_view:550:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'edge' is not derived from 'std::basic_string_view<_CharT, _Traits>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/bits/basic_string.h:48,
from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/string_view:557:5: note: candidate: 'template<class _CharT, class _Traits> constexpr bool std::operator<(std::__type_identity_t<std::basic_string_view<_CharT, _Traits> >, std::basic_string_view<_CharT, _Traits>)'
557 | operator< (__type_identity_t<basic_string_view<_CharT, _Traits>> __x,
| ^~~~~~~~
/usr/include/c++/10/string_view:557:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'edge' is not derived from 'std::basic_string_view<_CharT, _Traits>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/string:55,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/basic_string.h:6267:5: note: candidate: 'template<class _CharT, class _Traits, class _Alloc> bool std::operator<(const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&, const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>&)'
6267 | operator<(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
| ^~~~~~~~
/usr/include/c++/10/bits/basic_string.h:6267:5: note: template argument deduction/substitution failed:
In file included from /usr/include/c++/10/string:48,
from /usr/include/c++/10/bits/locale_classes.h:40,
from /usr/include/c++/10/bits/ios_base.h:41,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from swap.cpp:2:
/usr/include/c++/10/bits/stl_function.h:386:20: note: 'const edge' is not derived from 'const std::__cxx11::basic_string<_CharT, _Traits, _Allocator>'
386 | { return __x < __y; }
| ~~~~^~~~~
In file included from /usr/include/c++/10/string:55,
from