Compilare: main.cpp: In function 'int main()': main.cpp:35:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cartite.in", "r", stdin); ^ main.cpp:36:40: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("cartite.out", "w", stdout); ^ main.cpp:59:36: warning: 'sy' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << sx << " " << sy << " " << mn - 1 << "\n"; } ^~~ main.cpp:59:23: warning: 'sx' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << sx << " " << sy << " " << mn - 1 << "\n"; } ^~~