Compilare: user.cpp: In function ‘void query(long long int, long long int)’: user.cpp:49:20: warning: unused variable ‘s’ [-Wunused-variable] {long long i,j,s,m; ^ user.cpp: In function ‘int main()’: user.cpp:65:21: warning: unused variable ‘p’ [-Wunused-variable] long long n,i,m,x,k,p,sqq; ^ user.cpp:63:30: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] {freopen("maxq.in","r",stdin); ^ user.cpp:64:31: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("maxq.out","w",stdout); ^ user.cpp:66:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&n); ^ user.cpp:68:26: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&vec[i]); ^ user.cpp:73:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld",&m); ^ user.cpp:75:38: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] {scanf("%lld%lld%lld",&sqq,&x,&k); ^