这有错

#include<iostream>
#include<string.h>
#include<algorithm>
#include<vector>
#include<math.h>
#include<iomanip>
using namespace std;
int main()
{
    long long y,t,sum;
    cin>>y>>t;
    sum=y;
    for(long long i=1;i<t;i++)
        sum*=y;
    if(y<0)
        cout<<"YES"<<endl;
    else
        cout<<"NO"<<endl;
    if(y%2==1)
        cout<<"YES"<<endl;
    else
        cout<<"NO"<<endl;
    return 0;
}