Compilare: user.cpp: In function ‘int main()’: user.cpp:114:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<stanga.size(); i++) ^ user.cpp:116:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<dreapta.size(); i++) ^ user.cpp:118:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i=0; i<stanga.size(); i++) ^ user.cpp:119:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int j=0; j<dreapta.size(); j++) ^ user.cpp:88:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("monede.in", "r", stdin); ^ user.cpp:89:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("monede.out", "w", stdout); ^ user.cpp:91:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &n); ^ user.cpp:92:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &m); ^ user.cpp:96:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf ("%d", &a[i][j]); ^