Submission #1226185

#TimeUsernameProblemLanguageResultExecution timeMemory
1226185chuchucharlesBank (IZhO14_bank)C++20
52 / 100
1095 ms4564 KiB
#include <bits/stdc++.h> using namespace std; #define debug(x) cerr << #x << ' ' << x << '\n'; int n, m, a[25], b[25], sum[1 << 20]; bool dp[1 << 20][20]; signed main () { ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0); cin >> n >> m; for (int i = 1; i <= n; i++) cin >> a[i]; for (int i = 0; i < m; i++) cin >> b[i]; for (int mask = 0; mask < (1 << m); mask++) for (int i = 0; i < m; i++) if (mask >> i & 1) sum[mask] += b[i]; dp[0][0] = true; for (int i = 1; i <= n; i++) { for (int mask = 1; mask < (1 << m); mask++) { for (int sub = mask; ; sub = (sub - 1) & mask) { if (dp[sub][i - 1] && (sum[mask ^ sub] == a[i])) { dp[mask][i] = true; break; } if (sub == 0) break; } if (i == n && dp[mask][i]) { cout << "YES"; return 0; } } } cout << "NO"; }
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