Compilare: user.cpp: In function ‘int main()’: user.cpp:28:13: warning: variable ‘aux1’ set but not used [-Wunused-but-set-variable] int aux1,aux2,aux3; ^ user.cpp:28:18: warning: variable ‘aux2’ set but not used [-Wunused-but-set-variable] int aux1,aux2,aux3; ^ user.cpp:28:23: warning: variable ‘aux3’ set but not used [-Wunused-but-set-variable] int aux1,aux2,aux3; ^ user.cpp:20:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rating.in","r",stdin); ^ user.cpp:21:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("rating.out","w",stdout); ^ user.cpp:22:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:25:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&v[i][j]); ^