This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
using namespace std;
int main(){
int n,m,i,j,a[25],b[25];
cin >> n >> m;
for(i = 0;i < n;i++){
cin >> b[i];
}
for(i = 0;i < m;i++){
cin >> a[i];
}
for(i = 0;i < (1<<m);i++){
int s = 0;
for(j = 0;j < m;j++){
if(i & (1<<j)){
s += a[j];
}
}
if(s == b[0]){
cout << "YES";
return 0;
}
}
cout << "NO";
}
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