Submission #873857

#TimeUsernameProblemLanguageResultExecution timeMemory
873857AlphaMale06Bank (IZhO14_bank)C++14
100 / 100
90 ms8620 KiB
#include <bits/stdc++.h> using namespace std; const int N = 20; int dp[1<<N], rest[1<<N]; int main() { ios_base::sync_with_stdio(0); cin.tie(0); int n, m; cin >> n >> m; int a[n]; for(int i=0; i< n; i++)cin >> a[i]; int b[m]; for(int i=0; i < m; i++)cin >> b[i]; sort(a, a+n); sort(b, b+m); int mask=1<<m; rest[0]=a[0]; for(int i=1; i<mask; i++){ int bestdp=0; int bestrest=10000; for(int j=0; j< m; j++){ int bit=1<<j; if(i&bit){ if(rest[i^bit]==b[j]){ if(bestdp<=dp[i^bit]){ bestdp=dp[i^bit]+1; if(bestdp==n){ cout << "YES\n"; return 0; } else{ bestrest=a[bestdp]; } } } else if(rest[i^bit]>b[j]){ if(bestdp==dp[i^bit]){ bestrest=min(bestrest, rest[i^bit]-b[j]); } else if(bestdp<dp[i^bit]){ bestdp=dp[i^bit]; bestrest=rest[i^bit]-b[j]; } } } } dp[i]=bestdp; rest[i]=min(bestrest, a[dp[i]]); } cout << "NO\n"; }
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