제출 #493501

#제출 시각아이디문제언어결과실행 시간메모리
493501reni은행 (IZhO14_bank)C++14
100 / 100
311 ms172676 KiB
#include<iostream> #define endl '\n' using namespace std; long long dp[(1<<21)][21], a[1000], b[1000],n,m; bool is=false; void rec(long long sum,long long pos, long long mask) { if(is)return; if(pos==n){is=true;return;} for(int i=0;i<m;i++) { if(sum>b[i] && ((mask&(1<<i))==0)) { if(!dp[mask|(1<<i)][pos])rec(sum-b[i],pos,mask|(1<<i)); dp[mask|(1<<i)][pos]=1; } else if(sum==b[i] && ((mask&(1<<i))==0)) { if(!dp[mask|(1<<i)][pos+1])rec(a[pos+1],pos+1,mask|(1<<i)); dp[mask|(1<<i)][pos+1]=1; } } } int main() { ios::sync_with_stdio(0); cin.tie(0); cout.tie(0); long long i,j; cin>>n>>m; for(i=0;i<n;i++) { cin>>a[i]; } for(j=0;j<m;j++) { cin>>b[j]; } rec(a[0],0,0); if(is)cout<<"YES"<<endl; else cout<<"NO"<<endl; }
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