Submission #596171

#	Time	Username	Problem	Language	Result	Execution time	Memory
596171		Belphegor	Bank (IZhO14_bank)	C++14	100 / 100	97 ms	8516 KiB

bank

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int A[22],B[22];
int LEFT[(1<<20)],dp[(1<<20)];

int main(){
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	int n,m; cin>>n>>m;
	for(int i=1; i<=n; i++) cin>>A[i];
	for(int i=0; i<m; i++) cin>>B[i];
	
	for(int i=1; i<(1<<m); i++){
		for(int j=0; j<m; j++){
			if(!(i&(1<<j))) continue;
			
			int sub = i^(1<<j);
			int cur = dp[sub]+1,money = LEFT[sub];
			if(cur<=dp[i]) continue;
			if(A[cur]==money+B[j]){
				dp[i] = cur;
				LEFT[i] = 0;
			}
			else if(dp[sub]>=dp[i]){
				dp[i] = dp[sub];
				LEFT[i] = LEFT[sub]+B[j];
			}
		}
		if(dp[i]==n){
			cout<<"YES";
			return 0;
		}
	}
	cout<<"NO";
}

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