Submission #37402

#	Time	Username	Problem	Language	Result	Execution time	Memory
37402		HardNut	Bank (IZhO14_bank)	C++14	71 / 100	1081 ms	760 KiB

bank

#include<iostream>
#include<cstdio>
#include<algorithm>

using namespace std;

const int N = 1e5 + 5;

typedef long long ll;

int n, m, a[25], b[25];
bool used[25];

void rec(int v, int sum, int cur) {
    if (a[v] == sum) {
        v++;
        if (v == n + 1) {
            cout << "YES";
            exit(0);
        }
        sum = 0;
        cur = 0;
    }
    for (int i = cur + 1; i <= m; i++) {
        if (!used[i] && sum + b[i] <= a[v]) {
            used[i] = 1;
            rec(v, sum + b[i], i);
            used[i] = 0;
        }
    }
}

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        cin >> a[i];
    }
    for (int i = 1; i <= m; i++) {
        cin >> b[i];
    }
    rec(1, 0, 0);
    cout << "NO";
}

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 0 / 29