| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 608434 | yanndev | Toy Train (IOI17_train) | C++17 | Compilation error | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include <bits/stdc++.h>
using namespace std;
const int MX = 5042;
int n;
int deg[MX];
bool vis[MX];
bool vis2[MX];
bool isOk[MX];
bool isAlice[MX];
bool isCharge[MX];
int nxt[MX];
int start = 0;
int end = 0;
vector<int> rgraph[MX];
bool BFS() {
start = end = 0;
for (int i = 0; i < n; i++)
deg[i] = 0;
for (int i = 0; i < n; i++) {
for (auto& x: rgraph[i])
deg[x]++;
if (isCharge[i] && isOk[i])
nxt[end++];
vis[i] = vis2[i] = false;
}
//cout << layer << ' ' << (int)nxt.size() << '\n';
while (start < end) {
auto cur = nxt[start++];
//cout << "cur is " << cur << '\n';
//nxt.pop();
for (auto& x: rgraph[cur]) {
if (!vis2[x] && ((--deg[x] == 0) || isAlice[x])) {
vis2[x] = true;
nxt[end++] = x;
}
}
}
for (int i = 0; i < n; i++) {
if (isOk[i] && !vis2[i]) {
isOk[i] = false;
return true;
}
}
return false;
}
vector<int> who_wins(vector<int> a, vector<int> r, vector<int> u, vector<int> v) {
n = (int)a.size();
for (int i = 0; i < (int)u.size(); i++)
rgraph[v[i]].push_back(u[i]);
for (int i = 0; i < n; i++) {
isAlice[i] = a[i];
isCharge[i] = r[i];
isOk[i] = true;
}
while (BFS());
vector<int> ans (n);
for (int i = 0; i < n; i++)
ans[i] = isOk[i];
return ans;
}
Compilation message (stderr)
train.cpp: In function 'bool BFS()':
train.cpp:19:13: error: reference to 'end' is ambiguous
19 | start = end = 0;
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
from train.cpp:1:
/usr/include/c++/10/valarray:1244:5: note: candidates are: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)'
1244 | end(const valarray<_Tp>& __va)
| ^~~
/usr/include/c++/10/valarray:1234:5: note: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)'
1234 | end(valarray<_Tp>& __va)
| ^~~
In file included from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/bits/range_access.h:100:5: note: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
100 | end(_Tp (&__arr)[_Nm])
| ^~~
/usr/include/c++/10/bits/range_access.h:81:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
81 | end(const _Container& __cont) -> decltype(__cont.end())
| ^~~
/usr/include/c++/10/bits/range_access.h:71:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
71 | end(_Container& __cont) -> decltype(__cont.end())
| ^~~
In file included from /usr/include/c++/10/bits/range_access.h:36,
from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/initializer_list:101:5: note: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)'
101 | end(initializer_list<_Tp> __ils) noexcept
| ^~~
train.cpp:15:5: note: 'int end'
15 | int end = 0;
| ^~~
train.cpp:26:17: error: reference to 'end' is ambiguous
26 | nxt[end++];
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
from train.cpp:1:
/usr/include/c++/10/valarray:1244:5: note: candidates are: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)'
1244 | end(const valarray<_Tp>& __va)
| ^~~
/usr/include/c++/10/valarray:1234:5: note: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)'
1234 | end(valarray<_Tp>& __va)
| ^~~
In file included from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/bits/range_access.h:100:5: note: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
100 | end(_Tp (&__arr)[_Nm])
| ^~~
/usr/include/c++/10/bits/range_access.h:81:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
81 | end(const _Container& __cont) -> decltype(__cont.end())
| ^~~
/usr/include/c++/10/bits/range_access.h:71:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
71 | end(_Container& __cont) -> decltype(__cont.end())
| ^~~
In file included from /usr/include/c++/10/bits/range_access.h:36,
from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/initializer_list:101:5: note: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)'
101 | end(initializer_list<_Tp> __ils) noexcept
| ^~~
train.cpp:15:5: note: 'int end'
15 | int end = 0;
| ^~~
train.cpp:32:20: error: reference to 'end' is ambiguous
32 | while (start < end) {
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
from train.cpp:1:
/usr/include/c++/10/valarray:1244:5: note: candidates are: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)'
1244 | end(const valarray<_Tp>& __va)
| ^~~
/usr/include/c++/10/valarray:1234:5: note: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)'
1234 | end(valarray<_Tp>& __va)
| ^~~
In file included from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/bits/range_access.h:100:5: note: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
100 | end(_Tp (&__arr)[_Nm])
| ^~~
/usr/include/c++/10/bits/range_access.h:81:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
81 | end(const _Container& __cont) -> decltype(__cont.end())
| ^~~
/usr/include/c++/10/bits/range_access.h:71:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
71 | end(_Container& __cont) -> decltype(__cont.end())
| ^~~
In file included from /usr/include/c++/10/bits/range_access.h:36,
from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/initializer_list:101:5: note: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)'
101 | end(initializer_list<_Tp> __ils) noexcept
| ^~~
train.cpp:15:5: note: 'int end'
15 | int end = 0;
| ^~~
train.cpp:40:21: error: reference to 'end' is ambiguous
40 | nxt[end++] = x;
| ^~~
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:95,
from train.cpp:1:
/usr/include/c++/10/valarray:1244:5: note: candidates are: 'template<class _Tp> const _Tp* std::end(const std::valarray<_Tp>&)'
1244 | end(const valarray<_Tp>& __va)
| ^~~
/usr/include/c++/10/valarray:1234:5: note: 'template<class _Tp> _Tp* std::end(std::valarray<_Tp>&)'
1234 | end(valarray<_Tp>& __va)
| ^~~
In file included from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/bits/range_access.h:100:5: note: 'template<class _Tp, long unsigned int _Nm> constexpr _Tp* std::end(_Tp (&)[_Nm])'
100 | end(_Tp (&__arr)[_Nm])
| ^~~
/usr/include/c++/10/bits/range_access.h:81:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(const _Container&)'
81 | end(const _Container& __cont) -> decltype(__cont.end())
| ^~~
/usr/include/c++/10/bits/range_access.h:71:5: note: 'template<class _Container> constexpr decltype (__cont.end()) std::end(_Container&)'
71 | end(_Container& __cont) -> decltype(__cont.end())
| ^~~
In file included from /usr/include/c++/10/bits/range_access.h:36,
from /usr/include/c++/10/string:54,
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 train.cpp:1:
/usr/include/c++/10/initializer_list:101:5: note: 'template<class _Tp> constexpr const _Tp* std::end(std::initializer_list<_Tp>)'
101 | end(initializer_list<_Tp> __ils) noexcept
| ^~~
train.cpp:15:5: note: 'int end'
15 | int end = 0;
| ^~~