Compilare: main.cpp: In function 'void Read()': main.cpp:96:37: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ograzi.in", "r", stdin); ^ main.cpp:97:39: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("ograzi.out", "w", stdout); ^ main.cpp: In function 'bool Check(int, int)': main.cpp:141:1: warning: control reaches end of non-void function [-Wreturn-type] } ^