Submission #541174

#TimeUsernameProblemLanguageResultExecution timeMemory
541174status_codingBank (IZhO14_bank)C++14
0 / 100
1093 ms18840 KiB
#include <bits/stdc++.h> #pragma GCC optimize ("unroll-loops") using namespace std; int n,m; int a[22], b[22]; int sum[2000005]; vector<int> fr[1005]; int dp[2][2000005]; int main() { cin>>n>>m; for(int i=1;i<=n;i++) cin>>a[i]; for(int i=1;i<=m;i++) cin>>b[i]; for(int mask=0; mask < (1<<m); mask++) { for(int k=0;k<m;k++) if((mask>>k)&1) sum[mask] += b[k]; if(sum[mask] <= 1000) fr[sum[mask]].push_back(mask); } for(int mask=0; mask < (1<<m); mask++) dp[1][mask]=true; for(int i=1;i<=n;i++) { for(int mask = 0; mask<(1<<m); mask++) { dp[0][mask] = dp[1][mask]; dp[1][mask] = 0; } for(int mask = 0; mask<(1<<m); mask++) for(int nmask : fr[a[i]]) if((mask | nmask) == mask && dp[0][mask - nmask]) { dp[1][mask] = true; break; } } if(dp[1][ (1<<m) - 1 ]) cout<<"YES"; else cout<<"NO"; return 0; }
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