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;
typedef long long ll;
int A[22],B[22];
int main(){
ios_base::sync_with_stdio(false); cin.tie(NULL);
int n,m; cin>>n>>m;
for(int i=0; i<n; i++) cin>>A[i];
for(int i=0; i<m; i++) cin>>B[i];
for(int i=1; i<(1<<m); i++){
int tot = 0;
for(int j=0; j<m; j++) if(i&(1<<j)) tot+=B[j];
if(A[0]==tot){
cout<<"YES";
return 0;
}
}
cout<<"NO";
}
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