Compilare: user.cpp: In function ‘int main()’: user.cpp:4:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lacusta.in","r",stdin); ^ user.cpp:5:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("lacusta.out","w",stdout); ^ user.cpp:7:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:10:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&nr); ^ user.cpp:41:29: warning: ‘minj’ may be used uninitialized in this function [-Wmaybe-uninitialized] a[i][j]+=cmn; ^ user.cpp:58:22: warning: ‘c’ may be used uninitialized in this function [-Wmaybe-uninitialized] printf("%d",min+c); ^