Submission #1193332

#	Time	Username	Problem	Language	Result	Execution time	Memory
1193332		badge881	Bank (IZhO14_bank)	C++20	100 / 100	136 ms	4540 KiB

bank

#include <bits/stdc++.h>
#define endl '\n'
using namespace std;

int n,m;
int a[21],b[20];
int dp[1<<20];

int main(){
	ios_base::sync_with_stdio(false);cin.tie(NULL);
	cin>>n>>m;
	for(int i=1;i<=n;i++){
		cin>>a[i];
		a[i]+=a[i-1];
	}
	for(int i=0;i<m;i++)
		cin>>b[i];
	
	for(int i=0;i<(1<<m);i++){
		if(dp[i]==n){
			cout<<"YES"<<endl;
			return 0;
		}
		int sum=0;
		for(int j=0;j<m;j++)
			if((1<<j)&i)
				sum+=b[j];
		for(int j=0;j<m;j++){
			if(i&(1<<j))continue;
			if(a[dp[i]+1]==sum+b[j])dp[i|(1<<j)]=dp[i]+1;
			else dp[i|(1<<j)]=max(dp[i|(1<<j)],dp[i]);
		}
	}
	cout<<"NO"<<endl;
}

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