Compilare: user.cpp: In function ‘int main()’: user.cpp:16:13: warning: variable ‘pp’ set but not used [-Wunused-but-set-variable] int t,q,pp,n,i,a,r=100000,xx; ^ user.cpp:16:20: warning: unused variable ‘a’ [-Wunused-variable] int t,q,pp,n,i,a,r=100000,xx; ^ user.cpp:17:15: warning: unused variable ‘cmmmc’ [-Wunused-variable] long long cmmmc=1; ^ user.cpp:14:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pufarina.in","r",stdin); ^ user.cpp:15:39: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("pufarina.out","w",stdout); ^ user.cpp:19:19: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&t); ^ user.cpp:21:23: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ user.cpp:24:27: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%f",&x); ^