Submission #899822

#	Time	Username	Problem	Language	Result	Execution time	Memory
899822		pete555	Bank (IZhO14_bank)	C++17	0 / 100	1 ms	348 KiB

bank

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

int main()
{
	int n, m;
	cin >> n >> m;
	int ppl[n], bank[m];
	for(int i=0; i<n; i++)
		cin >> ppl[i];
	for(int i=0; i<m; i++)
		cin >> bank[i];
		
	vector<int> covered(1<<m, -1);
	vector<int> leftover(1<<m, -1);
	covered[0] = 0;
	leftover[0] = 0;
	for(int mask=1; mask<(1<<m); mask++){
		for(int i=0; i<m; i++){
			if((mask&(1<<i)) == 0) continue; 
			int prev = mask^(1<<i);
			if(covered[prev] == -1) continue; 
			int amt = leftover[prev] + bank[i];
			int target = ppl[covered[prev]];
			
			if(amt < target){
				covered[mask] = covered[prev];
				leftover[mask] = amt;
			}else if(amt == target){
				covered[mask] = covered[prev] + 1;
				leftover[mask] = 0;
			}
		}
//		if(covered[mask] == n){
//			cout << "YES";
//			return 0;
//		}
	}
	for(int i=0; i<(1<<n); i++){
		if(covered[i] == n){
			cout << "YES";
			return 0;
		}
	}
	cout << "NO";
	return 0;
}

• Subtask 1: 0 / 19
• Subtask 2: 0 / 25
• Subtask 3: 0 / 27
• Subtask 4: 0 / 29