Eroare de compilare: main.cpp: In function 'void extract(int, int, int)': main.cpp:18:22: error: no matching function for call to 'std::queue<std::pair<int, int> >::emplace(<brace-enclosed initializer list>)' q.emplace ({l, c}); ^ In file included from /usr/include/c++/6/queue:64:0, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:86, from main.cpp:1: /usr/include/c++/6/bits/stl_queue.h:252:9: note: candidate: void std::queue<_Tp, _Sequence>::emplace(_Args&& ...) [with _Args = {}; _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >] emplace(_Args&&... __args) ^~~~~~~ /usr/include/c++/6/bits/stl_queue.h:252:9: note: candidate expects 0 arguments, 1 provided main.cpp: In function 'int main()': main.cpp:40:22: error: no matching function for call to 'std::queue<std::pair<int, int> >::emplace(<brace-enclosed initializer list>)' q.emplace ({0, 0}); ^ In file included from /usr/include/c++/6/queue:64:0, from /usr/include/x86_64-linux-gnu/c++/6/32/bits/stdc++.h:86, from main.cpp:1: /usr/include/c++/6/bits/stl_queue.h:252:9: note: candidate: void std::queue<_Tp, _Sequence>::emplace(_Args&& ...) [with _Args = {}; _Tp = std::pair<int, int>; _Sequence = std::deque<std::pair<int, int>, std::allocator<std::pair<int, int> > >] emplace(_Args&&... __args) ^~~~~~~ /usr/include/c++/6/bits/stl_queue.h:252:9: note: candidate expects 0 arguments, 1 provided main.cpp:23:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("grea.in", "r", stdin); ^ main.cpp:24:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen ("grea.out", "w", stdout); ^ Non zero exit status: 1