Compilare: user.cpp: In function ‘int main()’: user.cpp:6:18: warning: unused variable ‘st’ [-Wunused-variable] int n,d,i,t,k,j,st,dr,mij; ^ user.cpp:6:21: warning: unused variable ‘dr’ [-Wunused-variable] int n,d,i,t,k,j,st,dr,mij; ^ user.cpp:6:24: warning: unused variable ‘mij’ [-Wunused-variable] int n,d,i,t,k,j,st,dr,mij; ^ user.cpp:7:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("divprim.in","r",stdin); ^ user.cpp:8:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("divprim.out","w",stdout); ^ user.cpp:19:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:22:25: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&k); ^