Submission #1133357

#	Time	Username	Problem	Language	Result	Execution time	Memory
1133357		lopkus	Bank (IZhO14_bank)	C++20	71 / 100	1094 ms	24900 KiB

bank

#include <bits/stdc++.h>

#define int long long

using namespace std;

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<int> a(n);
    vector<int> b(m);
    for(int i = 0; i < n; i++) {
        cin >> a[i];
    }
    for(int i = 0; i < m; i++) {
        cin >> b[i];
    }
    int dp[n][(1LL << m)];
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < (1LL << m); j++) {
            dp[i][j] = 0;
        }
    }
    for(int i = 0; i < n; i++) {
        for(int j = 0; j < (1LL << m); j++) {
            int s = 0;
            for(int q = 0; q < m; q++) {
                if(j & (1LL << q)) {
                    s += b[q];
                }
            }
            if(s == a[i]) {
                if(!i) {
                    dp[i][j] = 1;
                    continue;
                }
                for(int bitmask = 0; bitmask < (1LL << m); bitmask++) {
                    if((bitmask & j)) {
                        continue;
                    }
                    dp[i][j ^ bitmask] |= dp[i - 1][bitmask];
                }
            }
        }
    }
    int ok = 0;
    for(int i = 0; i < (1LL << m); i++) {
        ok |= dp[n - 1][i];
    }
    if(ok) {
        cout << "YES";

    }
    else {
        cout << "NO";
    }
}

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