제출 #386524

#제출 시각아이디문제언어결과실행 시간메모리
386524ScarletS은행 (IZhO14_bank)C++17
19 / 100
188 ms8684 KiB
#include <bits/stdc++.h> using namespace std; bitset<21> ct[(1<<20)]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n,m,s,l,r,mid; cin>>n>>m; int p[n+1],a[m]; p[0]=0; for (int i=1;i<=n;++i) cin>>p[i],p[i]+=p[i-1]; for (int i=0;i<m;++i) cin>>a[i],ct[1<<i][0]=1; for (int i=1;i<(1<<m);++i) { s=0; for (int j=0;j<m;++j) if (i&(1<<j)) s+=a[j]; l=1;r=n; while (l<r) { mid=l+(r-l)/2; if (s<p[mid]) l=mid+1; else r=mid; } if (s==p[l]&&ct[i][l-1]) ct[i][l]=1; for (int j=0;j<m;++j) if (!(i&(1<<j))) for (int k=0;k<=n;++k) ct[i^(1<<j)][k]=ct[i^(1<<j)][k]|ct[i][k]; } if (ct[(1<<m)-1][n]) cout<<"YES"; else cout<<"NO"; return 0; }
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