Submission #1177841

#	Time	Username	Problem	Language	Result	Execution time	Memory
1177841		nrg_studio	Bank (IZhO14_bank)	C++20	100 / 100	127 ms	4540 KiB

bank

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

#define ll long long
#define pb push_back
#define pii pair<int,int>
#define f first
#define s second
#define chmin(a, b) a = min(a,b)
#define chmax(a, b) a = max(a,b)
#define FOR(i, a, b) for (int i = (a); i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define all(x) x.begin(),x.end()
#define vec vector

const int MAX_N = 20;
int a[MAX_N], b[MAX_N], ps[MAX_N+2] = {0};
int dp[1<<MAX_N] = {0};


int main() {
    ios::sync_with_stdio(false); cin.tie(0);

    int n, m; cin >> n >> m;
    F0R(i,n) {cin >> a[i]; ps[i+1] = a[i]+ps[i];}
    F0R(i,m) {cin >> b[i];}
    
    int ans = 0;
    F0R(mask,1<<m) {
        chmax(ans,dp[mask]);
        int sum = 0;
        F0R(j,m) {
            if ((1<<j)&mask) {sum += b[j];}
        }
        F0R(j,m) {
            if (!((1<<j)&mask)) {
                chmax(dp[mask|(1<<j)],dp[mask]+(sum+b[j]==ps[dp[mask]+1]));
            }
        }
    }
    cout << (ans==n ? "YES" : "NO") << '\n';
}

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