Submission #1215426

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215426		bbldrizzy	Bank (IZhO14_bank)	C++20	0 / 100	1 ms	324 KiB

bank

#include <bits/stdc++.h>
using namespace std;

int main() {
    int n, m; cin >> n >> m;
    vector<int> vals(n);
    vector<int> notes(m);
    for (int &u: vals) cin >> u;
    for (int &u: notes) cin >> u;
    vector<int> extra(1<<m, -1);
    vector<int> covered(1<<m, -1);
    extra[0] = 0;
    covered[0] = 0;
    for (int i = 0; i < (1<<m); i++) {
        for (int j = 1; j < m; j++) {
            if ((i&(1<<j)) == 0) continue;
            int prev = i & ~(1<<j);
            if (covered[prev] == -1) continue;
            int amt = extra[prev] + notes[j];
            int nxt = vals[covered[prev]];
            if (amt < nxt) {
                extra[i] = nxt;
                covered[i] = covered[prev];
            } else if (amt == nxt) {
                extra[i] = 0;
                covered[i] = covered[prev]+1;
            }
        }
        if (covered[i] == n) {
            cout << "YES"; exit(0);
        }
    }
    cout << "NO";
}

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