Compilare: user.cpp: In constructor ‘BipartiteMatcher::BipartiteMatcher(int, int)’: user.cpp:24:25: warning: ‘BipartiteMatcher::viz’ will be initialized after [-Wreorder] vector<int> lft, rght, viz; ^ user.cpp:24:14: warning: ‘std::vector<int> BipartiteMatcher::lft’ [-Wreorder] vector<int> lft, rght, viz; ^ user.cpp:30:2: warning: when initialized here [-Wreorder] BipartiteMatcher(int n, int m) : viz(n+1), lft(n+1, -1), rght(m+1, -1) {} ^ user.cpp: In member function ‘int BipartiteMatcher::match()’: user.cpp:45:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < lft.size(); ++i) ^ user.cpp:51:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < lft.size(); ++i){ ^ user.cpp: In function ‘int main()’: user.cpp:80:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuplaj.in","r",stdin); ^ user.cpp:81:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("cuplaj.out","w",stdout); ^