Compilare: user.cpp: In function ‘int main()’: user.cpp:46:23: warning: variable ‘best0’ set but not used [-Wunused-but-set-variable] int answer = inf, best0, best1, nr = 0, diameter; ^ user.cpp:46:30: warning: variable ‘best1’ set but not used [-Wunused-but-set-variable] int answer = inf, best0, best1, nr = 0, diameter; ^ user.cpp:46:37: warning: variable ‘nr’ set but not used [-Wunused-but-set-variable] int answer = inf, best0, best1, nr = 0, diameter; ^ user.cpp:29:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "apdm.in", "r", stdin ); ^ user.cpp:30:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen( "apdm.out","w", stdout); ^