Submission #659856

#	Time	Username	Problem	Language	Result	Execution time	Memory
659856		meiron03	Bank (IZhO14_bank)	C++17	100 / 100	215 ms	12600 KiB

bank

#include <bits/stdc++.h>
using namespace std;
 
 
typedef pair<int,int> point;
#define Rd(r) freopen(r, "r", stdin);
#define Wt(w) freopen(w, "w", stdout);
#define x first
#define y second
#define INF 1<<30
#define MAXI 20
vector<int> MASK[MAXI];
int dp[1 << MAXI], rem[1 << MAXI], mark[1 << MAXI], y;
bool flag = false;
 
bool ZiwenZapper(int n, int m, int a[], int b[]) {
  y = 0;
	mark[0] = 1;
	for(int mask = 0; mask < (1 << m); mask++){
		for(int	i = 0; i < m; i++){
			if(mark[mask ^ (1 << i)] and (mask & (1 << i))){
				int last = dp[mask ^ (1 << i)];
				int curr = rem[mask ^ (1 << i)] + b[i];
				if(curr > a[last]) continue;
				dp[mask] = last + (curr == a[last] ? 1 : 0);
				rem[mask] = (curr == a[last] ? 0 : curr);
				mark[mask] = 1;
			}
		}
		if(dp[mask] == n) y = 1;
	}
	return y ? true : false;
 
}
 
int main()
{
    //Rd("ziwenzapper.in");
    int n, m;
    int a[MAXI], b[MAXI];

	cin >> m >> n;
	for (int i = 0; i < m; i++) cin >> b[i];
	for (int j = 0; j < n; j++) cin >> a[j];
	bool val = ZiwenZapper(m, n, b, a);
	cout << (val ? "YES" : "NO") << "\n";

    return 0;
 
}

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