Eroare de compilare: user.cpp: In member function ‘bool orderByDistance::operator()(int, int)’: user.cpp:12:16: error: ‘distance’ was not declared in this scope return distance[x] > distance[y]; ^ user.cpp:12:16: note: suggested alternative: In file included from /usr/include/c++/5/bits/stl_algobase.h:66:0, from /usr/include/c++/5/bits/char_traits.h:39, from /usr/include/c++/5/ios:40, from /usr/include/c++/5/istream:38, from /usr/include/c++/5/sstream:38, from /usr/include/c++/5/complex:45, from /usr/include/c++/5/ccomplex:38, from /usr/include/x86_64-linux-gnu/c++/5/bits/stdc++.h:52, from user.cpp:1: /usr/include/c++/5/bits/stl_iterator_base_funcs.h:114:5: note: ‘std::distance’ distance(_InputIterator __first, _InputIterator __last) ^ user.cpp: At global scope: user.cpp:20:37: warning: integer overflow in expression [-Woverflow] int distance[50001], OO = (1 << 31) - 1; ^ user.cpp: In function ‘int main()’: user.cpp:66:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.in", "r", stdin); ^ user.cpp:67:41: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("dijkstra.out", "w", stdout); ^ user.cpp:69:35: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &nodes, &edges); ^ user.cpp:73:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d", &u, &v, &cost); ^