제출 #930356

#제출 시각아이디문제언어결과실행 시간메모리
930356uped은행 (IZhO14_bank)C++14
52 / 100
1046 ms31148 KiB
#include <bits/stdc++.h> #define DEBUG(x) cout << #x << ": " << x << '\n'; using namespace std; using ll = long long; set<tuple<int, int, int>> visited; const int MAX = 20; int a[MAX + 1]; int b[MAX]; int n, m; void solve(int idx, int val, int mask) { if (visited.count({idx, val, mask})) return; visited.emplace(idx, val, mask); if (idx == n) return; for (int i = 0; i < m; ++i) { if (mask & (1 << i)) continue; if (val - b[i] == 0) { solve(idx + 1, a[idx + 1], mask | (1 << i)); } else if (val - b[i] > 0) { solve(idx, val - b[i], mask | (1 << i)); } } } 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]; } solve(0, a[0], 0); bool ans = false; for (int i = 0; i < (1 << m); ++i) { if (visited.count({n, 0, i})) { ans = true; break; } } cout << (ans ? "YES" : "NO"); }
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