Compilare: user.cpp: In function ‘int main()’: user.cpp:87:12: warning: unused variable ‘kk’ [-Wunused-variable] gogu k,kk; ^ user.cpp:88:42: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sequencequery.in","r",stdin); ^ user.cpp:89:44: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("sequencequery.out","w",stdout); ^ user.cpp:102:32: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%lld%lld",&a,&b); ^