Submission #1288561

#	Time	Username	Problem	Language	Result	Execution time	Memory
1288561		muhammad-ahmad	Bank (IZhO14_bank)	C++20	100 / 100	123 ms	16864 KiB

bank

// #include <bits/stdc++.h>
#include <iostream>
#include <cmath>
#include <algorithm>
#include <map>
#include <vector>
#include <iomanip>
#include <string>
#include <queue>
#include <set>
#include <deque>
#include <numeric>
#include <stack>
#include <chrono>
using namespace std;

#define int long long
#define endl '\n'
#define all(v) (v).begin(), (v).end()
#define rall(v) (v).rbegin(), (v).rend()
#define fi first
#define Se second

void fast_io() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    cout << fixed << setprecision(9);
}  

void solve() {
	int n, m; cin >> n >> m;
	int a[n] = {};
	int b[m] = {};
	for (auto &i : a) cin >> i;
	for (auto &i : b) cin >> i;
	
	int MASK = (1LL << m);
	vector<int> dp1(MASK, -1), dp2(MASK, -1);
	dp1[0] = dp2[0] = 0;	
	
	for (int mask = 0; mask < MASK; mask++){
		for (int last = 0; last < m; last++){
			if (mask & (1LL << last) == 0) continue;
			int prev = mask ^ (1LL << last);
			if (dp1[prev] == -1) continue;
			
			int pans = dp1[prev];
			int sum = dp2[prev] + b[last];
			
			if (sum < a[pans]){
				dp1[mask] = pans;
				dp2[mask] = sum;
			}
			else if (sum == a[pans]){
				dp1[mask] = pans + 1;
				dp2[mask] = 0;
			}
		}
		
		if (dp1[mask] == n){
			cout << "YES" << endl;
			return;
		}	
	}
	
	cout << "NO" << endl;
	
	return;
}

signed main() {
    fast_io();
    srand(chrono::steady_clock::now().time_since_epoch().count());
    int tc = 1;
    // cin >> tc;
    while (tc--) solve();
    return 0;
}

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