Submission #590773

#	Time	Username	Problem	Language	Result	Execution time	Memory
590773		Mazaalai	Bank (IZhO14_bank)	C++17	100 / 100	116 ms	8524 KiB

bank

#include <bits/stdc++.h>
#define ff first
#define ss second
using namespace std;
const int N = 20;
const int M = 1<<N;
using VI = vector <int>;
using PII = pair <int, int>;
int n, m;
int a[N], b[N], s[N];
PII dp[M];

signed main() {
	ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
	cin >> n >> m;
	for (int i = 0; i < n; i++) cin >> a[i];
	for (int i = 0; i < m; i++) cin >> b[i];
	a[n] = 1e9;
	int full = (1<<m)-1;
	dp[0] = {0, 0};
	bool done = 0;
	for (int i = 1; i <= full && !done; i++) {
		dp[i] = {0, 0};
		for (int j = 0; j < m; j++) {
			int prev = i^(1<<j), num = b[j];
			PII tmp = dp[prev];
			if (i < prev || dp[i].ff > tmp.ff) continue;
			if (tmp.ff > dp[i].ff) dp[i] = tmp;
			if (a[tmp.ff] >= num+tmp.ss) dp[i].ss = max(dp[i].ss, num+tmp.ss);
		}
		if (dp[i].ss == a[dp[i].ff]) dp[i] = {dp[i].ff+1, 0};
		done |= dp[i].ff == n;
	}
	cout << (done ? "YES" : "NO") << "\n";
}

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 29 / 29