Compilare: main.cpp: In function 'int main()': main.cpp:12:81: warning: unused variable 'col' [-Wunused-variable] int n,m,cer,k1,k2,i,j,min=999999999,l1,l2,stsud,drsud,drnord,stnord,s,j1,j2,col; ^~~ main.cpp:10:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lenes.in","r",stdin); ^ main.cpp:11:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("lenes.out","w",stdout); ^ main.cpp:13:47: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d %d",&cer,&n,&m,&k1,&k2); ^ main.cpp:18:33: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&a[i][j]); ^