| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 962613 | novus677 | Tracks in the Snow (BOI13_tracks) | C++14 | 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 <iostream>
#include <queue>
#include <vector>
using namespace std;
int H, W;
char grid[4000][4000];
bool visited[4000][4000];
char cur;
int main() {
cin >> H >> W;
for (int i = 0; i < H; ++i) {
string row;
cin >> row;
for (int j = 0; j < W; ++j) {
grid[i][j] = row[j];
}
}
cur = grid[0][0];
int answer = 1;
priority_queue<tuple<int, int, int>> queue;
queue.push({-1, 0, 0});
visited[0][0] = true;
while (!queue.empty()) {
auto [marker, i, j] = queue.top();
queue.pop();
answer = max(answer, -marker);
if (i > 0 && !visited[i - 1][j]) {
if (grid[i - 1][j] == grid[i][j]) {
visited[i - 1][j] = true;
queue.push({marker, i - 1, j});
} else if (grid[i - 1][j] != '.') {
visited[i - 1][j] = true;
queue.push({marker - 1, i - 1, j});
}
}
if (i < H - 1 && !visited[i + 1][j]) {
if (grid[i + 1][j] == grid[i][j]) {
visited[i + 1][j] = true;
queue.push({marker, i + 1, j});
} else if (grid[i + 1][j] != '.') {
visited[i + 1][j] = true;
queue.push({marker - 1, i + 1, j});
}
}
if (j > 0 && !visited[i][j - 1]) {
if (grid[i][j - 1] == grid[i][j]) {
visited[i][j - 1] = true;
queue.push({marker, i, j - 1});
} else if (grid[i][j - 1] != '.') {
visited[i][j - 1] = true;
queue.push({marker - 1, i, j - 1});
}
}
if (j < W - 1 && !visited[i][j + 1]) {
if (grid[i][j + 1] == grid[i][j]) {
visited[i][j + 1] = true;
queue.push({marker, i, j + 1});
} else if (grid[i][j + 1] != '.') {
visited[i][j + 1] = true;
queue.push({marker - 1, i, j + 1});
}
}
}
cout << answer << '\n';
}
Compilation message (stderr)
tracks.cpp: In function 'int main()':
tracks.cpp:26:26: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
26 | queue.push({-1, 0, 0});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:29:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
29 | auto [marker, i, j] = queue.top();
| ^
tracks.cpp:29:14: error: 'std::tuple<int, int, int> <structured bindings>' has incomplete type
29 | auto [marker, i, j] = queue.top();
| ^~~~~~~~~~~~~~
tracks.cpp:36:46: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
36 | queue.push({marker, i - 1, j});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:39:50: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
39 | queue.push({marker - 1, i - 1, j});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:45:46: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
45 | queue.push({marker, i + 1, j});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:48:50: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
48 | queue.push({marker - 1, i + 1, j});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:54:46: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
54 | queue.push({marker, i, j - 1});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:57:50: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
57 | queue.push({marker - 1, i, j - 1});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:63:46: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
63 | queue.push({marker, i, j + 1});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
tracks.cpp:66:50: error: no matching function for call to 'std::priority_queue<std::tuple<int, int, int> >::push(<brace-enclosed initializer list>)'
66 | queue.push({marker - 1, i, j + 1});
| ^
In file included from /usr/include/c++/10/queue:64,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_queue.h:640:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
640 | push(const value_type& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:640:30: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type&' {aka 'const std::tuple<int, int, int>&'}
640 | push(const value_type& __x)
| ~~~~~~~~~~~~~~~~~~^~~
/usr/include/c++/10/bits/stl_queue.h:648:7: note: candidate: 'void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::tuple<int, int, int>]'
648 | push(value_type&& __x)
| ^~~~
/usr/include/c++/10/bits/stl_queue.h:648:25: note: no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::priority_queue<std::tuple<int, int, int> >::value_type&&' {aka 'std::tuple<int, int, int>&&'}
648 | push(value_type&& __x)
| ~~~~~~~~~~~~~^~~
In file included from /usr/include/c++/10/vector:67,
from /usr/include/c++/10/queue:61,
from tracks.cpp:2:
/usr/include/c++/10/bits/stl_vector.h: In instantiation of 'std::_Vector_base<_Tp, _Alloc>::~_Vector_base() [with _Tp = std::tuple<int, int, int>; _Alloc = std::allocator<std::tuple<int, int, int> >]':
/usr/include/c++/10/bits/stl_vector.h:487:7: required from 'std::priority_queue<_Tp, _Sequence, _Compare>::priority_queue() [with _Seq = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Requires = void; _Tp = std::tuple<int, int, int>; _Sequence = std::vector<std::tuple<int, int, int>, std::allocator<std::tuple<int, int, int> > >; _Compare = std::less<std::tuple<int, int, int> >]'
tracks.cpp:25:42: required from here
/usr/include/c++/10/bits/stl_vector.h:336:35: error: invalid use of incomplete type 'class std::tuple<int, int, int>'
336 | _M_impl._M_end_of_storage - _M_impl._M_start);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/10/bits/move.h:57,
from /usr/include/c++/10/bits/nested_exception.h:40,
from /usr/include/c++/10/exception:148,
from /usr/include/c++/10/ios:39,
from /usr/include/c++/10/ostream:38,
from /usr/include/c++/10/iostream:39,
from tracks.cpp:1:
/usr/include/c++/10/type_traits:2631:11: note: declaration of 'class std::tuple<int, int, int>'
2631 | class tuple;
| ^~~~~
In file included from /usr/include/c++/10/bits/stl_algobase.h:67,
from /usr/include/c++/10/bits/cha