Compilare: user.cpp: In function ‘long int seeWhere(long int, long long int)’: user.cpp:107:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(long i=0;i<wh.size();i++){ ^ user.cpp: In function ‘int main()’: user.cpp:160:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ksecv4.in","r",stdin); ^ user.cpp:161:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("ksecv4.out","w",stdout); ^ user.cpp:163:31: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d",&n,&k,&m); ^ user.cpp:164:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=0;i<m;i++) scanf("%lld",&A[i]); ^ user.cpp:165:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for(i=0;i<m;i++) scanf("%lld",&B[i]); ^