Eroare de compilare: user.cpp:37:8: error: ‘int y1’ redeclared as different kind of symbol int x1,y1,x2,y2; ^ In file included from /usr/include/features.h:367:0, from /usr/include/assert.h:35, from /usr/include/c++/5/cassert:43, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/stdc++.h:33, from user.cpp:1: /usr/include/bits/mathcalls.h:251:1: note: previous declaration ‘double y1(double)’ __MATHCALL (y1,, (_Mdouble_)); ^ user.cpp: In function ‘void BFS()’: user.cpp:45:20: error: no matching function for call to ‘std::priority_queue<std::pair<int, int>, std::vector<std::pair<int, int> >, cmp>::push(<brace-enclosed initializer list>)’ pq.push({x1,y1}); ^ In file included from /usr/include/c++/5/queue:64:0, from /usr/include/x86_64-linux-gnu/c++/5/32/bits/stdc++.h:85, from user.cpp:1: /usr/include/c++/5/bits/stl_queue.h:499:7: note: candidate: void std::priority_queue<_Tp, _Sequence, _Compare>::push(const value_type&) [with _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = cmp; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<int, int>] push(const value_type& __x) ^ /usr/include/c++/5/bits/stl_queue.h:499:7: note: no known conversion for argument 1 from ‘<brace-enclosed initializer list>’ to ‘const value_type& {aka const std::pair<int, int>&}’ /usr/include/c++/5/bits/stl_queue.h:507:7: note: candidate: void std::priority_queue<_Tp, _Sequence, _Compare>::push(std::priority_queue<_Tp, _Sequence, _Compare>::value_type&&) [with _Tp = std::pair<int, int>; _Sequence = std::vector<std::pair<int, int> >; _Compare = cmp; std::priority_queue<_Tp, _Sequence, _Compare>::value_type = std::pair<int, int>] push(value_type&& __x) ^ /usr/include/c++/5/bits/stl_queue.h:507:7: note: no known conversion for argument 1 from ‘<brace-enclosed initializer list>’ to ‘std::priority_queue<std::pair<int, int>, std::vector<std::pair<int, int> >, cmp>::value_type&& {aka std::pair<int, int>&&}’ user.cpp:46:13: error: invalid types ‘int [305][double(double) throw ()]’ for array subscript M[x1][y1]=a[x1][y1]; ^ user.cpp:46:23: error: invalid types ‘int [305][double(double) throw ()]’ for array subscript M[x1][y1]=a[x1][y1]; ^ user.cpp: In function ‘int main()’: user.cpp:85:16: error: invalid conversion from ‘double (*)(double) throw ()’ to ‘int’ [-fpermissive] read(y1); ^ user.cpp:7:6: note: initializing argument 1 of ‘void read(int&)’ void read(int &x) ^ user.cpp:85:16: error: cannot bind rvalue ‘(int)y1’ to ‘int&’ read(y1); ^ user.cpp: In function ‘void read(int&)’: user.cpp:14:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^ user.cpp:22:38: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread(buffer,1,DIM,stdin); ^ user.cpp: In function ‘int main()’: