Submission #1308558

#	Time	Username	Problem	Language	Result	Execution time	Memory
1308558		Agageldi	Bank (IZhO14_bank)	C++20	100 / 100	298 ms	187372 KiB

bank

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

#define int long long
#define N 500005

int tc = 1, n, a[N], m, b[N], dp[21][(1<<20)], sm[(1<<20)];
vector <int> E[N];

int F(int pos,int mask) {
    if(pos == n) return 1;
    if(~dp[pos][mask]) return dp[pos][mask];
    int var = 0;
    for(auto i : E[a[pos]]) {
        if((mask & i)) continue;
        if(F(pos + 1,mask | i)) return dp[pos][mask] = 1;
    }
    return dp[pos][mask] = 0;
}

int32_t main() {
    ios::sync_with_stdio(0);cin.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];
    }
    for(int i = 0; i < (1 << m); i++) {
        int sum = 0;
        for(int j = 0; j < m; j++) {
            if((i >> j) & 1) sum += b[j];
        }
        E[sum].push_back(i);
    }
    memset(dp, -1, sizeof dp);
    cout <<(F(0,0) == 1? "YES\n" : "NO\n");
    return 0;
}

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