제출 #170030

#제출 시각아이디문제언어결과실행 시간메모리
170030tselmegkh은행 (IZhO14_bank)C++14
19 / 100
87 ms376 KiB
#include<bits/stdc++.h> using namespace std; int a[25], b[25], n, m; bool dp[25][(1 << 21)]; bool vis[25][(1 << 21)]; bool go(int v, int mask){ if(v == n){ return 1; } if(vis[v][mask])return dp[v][mask]; vis[v][mask] = 1; bool possible = 0; for(int i = 0; i < (1 << m); i++){ int sum = 0; bool ok = 1; for(int j = 0; j < m; j++){ if((1 << j) & mask){ ok = 0; break; } if(((1 << j) & i)){ sum += b[j]; } } if(sum == a[v] && ok){ possible |= go(v + 1, mask | i); } } return dp[v][mask] = possible; } int main(){ cin >> n >> m; for(int i = 0; i < n; i++){ cin >> a[i]; } for(int i = 0; i < m; i++){ cin >> b[i]; } if(go(0, 0)){ cout << "YES\n"; }else{ cout << "NO\n"; } }
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