제출 #534518

#제출 시각아이디문제언어결과실행 시간메모리
534518nicolexxuu은행 (IZhO14_bank)C++14
52 / 100
1075 ms7056 KiB
#include <bits/stdc++.h> #define MAXN 21 using namespace std; int a[MAXN], b[MAXN]; bool possible[MAXN][1 << MAXN]; vector<int> combos[MAXN * 1000]; int N, M; 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]; for(int mask = 0; mask < (1 << M); mask++) { int sum = 0; for(int i = 0; i < M; i++) { if(mask & (1 << i)) sum += b[i]; } combos[sum].push_back(mask); } possible[0][0] = true; for(int i = 0; i < N; i++) { for(int mask = 1; mask < (1 << M); mask++) { for(int combo : combos[a[i]]) { bool ok = true; for(int j = 0; j < M; j++) if((combo >> j) & 1 && !((mask >> j) & 1)) ok = false; if(ok) possible[i+1][mask] |= possible[i][mask - combo]; } } } bool res = false; for(int i = 0; i < (1 << M); i++) res |= possible[N][i]; if(res) cout << "YES\n"; else cout << "NO\n"; }
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