Compilare: main.cpp: In function 'int main()': main.cpp:42:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < parc.size() ; ++i) ~~^~~~~~~~~~~~~ main.cpp:24:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mesaj4.in", "r", stdin); ^ main.cpp:25:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("mesaj4.out", "w", stdout); ^ main.cpp:27:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &n, &m); ^ main.cpp:30:24: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &x, &y); ^