Compilare: user.cpp: In function ‘int main()’: user.cpp:8:42: warning: unused variable ‘pp’ [-Wunused-variable] int n,z,l,h,m,s,z2,l2,h2,m2,s2,x,i,j,k,q,pp,sqq,nr,r,c1,c2; ^ user.cpp:6:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen ("momente.in","r",stdin); ^ user.cpp:7:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("momente.out","w",stdout); ^ user.cpp:30:15: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:32:70: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {scanf("%d%d%d%d%d%d%d%d%d%d",&l,&z,&h,&m,&s,&l2,&z2,&h2,&m2,&s2); ^