Submission #528177

#	Time	Username	Problem	Language	Result	Execution time	Memory
528177		CursedCode	Bank (IZhO14_bank)	C++14	100 / 100	130 ms	8516 KiB

bank

#include<bits/stdc++.h>
 
using namespace std;
int covered[(1<<20)] = {-1},leftover[(1<<20)] = {-1};
int main(){
	int n,m,i,j,a[21],b[21];
	cin >> n >> m;
	for(i = 0;i < n;i++){
		cin >> a[i];
	}
	sort(a,a+n);
	for(i = 0;i < m;i++){
		cin >> b[i];
	}
	leftover[0] = 0;
	covered[0] = 0;
	for(i = 1;i < (1 << m);i++){
		for(j = 0;j < m;j++){
			if(i & (1 << j)){
				int ih = i ^ (1 << j);
				if(leftover[ih] + b[j] < a[covered[ih]]){
					if(covered[i] <= covered[ih]){
						leftover[i] = leftover[ih] + b[j];
						covered[i] = covered[ih];
					}
				}
				if(leftover[ih] + b[j] == a[covered[ih]]){
					if(covered[i] <= covered[ih] + 1){
						leftover[i] = 0;
						covered[i] = covered[ih] + 1;
					}
				}
				//cout << i << ' ' << covered[i] << ' ' << leftover[i] << ' ' << j << endl;
 			}
		}
		if(covered[i] == n){
			cout << "YES";
			return 0;
		}
	}
	cout << "NO";
}

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