Submission #864108

#	Time	Username	Problem	Language	Result	Execution time	Memory
864108		20163070	Bank (IZhO14_bank)	C++14	100 / 100	96 ms	8644 KiB

bank

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

const int N=110;

int n,m;
int a[N],b[N];

int main()
{
	cin>>n>>m;
	for(int i=0;i<n;i++) cin>>a[i];
	for(int i=0;i<m;i++) cin>>b[i];
	vector<int> left(1<<m,-1);
	vector<int> cover(1<<m,-1);
	left[0]=0;
	cover[0]=0;
	for(int s=0;s<(1<<m);s++)
	{
		for(int last=0;last<m;last++)
		{
			if((s&(1<<last))==0) continue;
			int prev=s&~(1<<last);
			if(cover[prev]==-1) continue;
			int newamt=left[prev]+b[last];
			int curt=a[cover[prev]];
			if(newamt<curt)
			{
				cover[s]=cover[prev];
				left[s]=newamt;
			}
			else if(newamt==curt)
			{
				cover[s]=cover[prev]+1;
				left[s]=0;
			}
		}
		if(cover[s]==n)
		{
				cout<<"YES";
				return 0;
		}
	}
	cout<<"NO";
	return 0;
}

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