Compilare: user.cpp: In function ‘int main()’: user.cpp:9:17: warning: unused variable ‘s’ [-Wunused-variable] int T,n,v,r,s,ans,cnt=0,u=0; ^ user.cpp:9:23: warning: unused variable ‘cnt’ [-Wunused-variable] int T,n,v,r,s,ans,cnt=0,u=0; ^ user.cpp:7:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("progresii2.in","r",stdin); ^ user.cpp:8:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("progresii2.out","w",stdout); ^ user.cpp:10:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&T); ^ user.cpp:13:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&v,&n); ^