Compilare: main.cpp: In function 'int main()': main.cpp:7:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "ssm.in", "r", stdin ); ^ main.cpp:8:38: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen( "ssm.out", "w", stdout ); ^ main.cpp:30:47: warning: 'dr' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << smax << " " << st << " " << dr << "\n"; ^~~~ main.cpp:30:34: warning: 'st' may be used uninitialized in this function [-Wmaybe-uninitialized] cout << smax << " " << st << " " << dr << "\n"; ^~~