Submission #1109578

#	Time	Username	Problem	Language	Result	Execution time	Memory
1109578		vjudge1	Bank (IZhO14_bank)	C++17	100 / 100	136 ms	4740 KiB

bank

//gm  --- akezhon
#include <bits/stdc++.h>
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define pb push_back
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
// #define int long long

using namespace std;

const int N=2e5+7;
const int N2=1e6+7;
const int mod=1e9+7;
// const int inf=2e18;
const double eps=1e-9;

int n, m;
int a[21], b[21], p[21], pos[20001];
int dp[2100000];

void AlemAmenov(){
	cin >> n >> m;
	for(int i=1; i <= n; i++){
		cin >> a[i];
		p[i] = p[i-1]+a[i];
		pos[p[i]] = i;
	}
	for(int i=1; i <= m; i++){
		cin >> b[i];
	}
	bool ok=0;
	for(int mask=1; mask < (1<<m); mask++){
		int sum=0;
		for(int j=1; j <= m; j++){
			if(mask&(1<<(j-1)))sum += b[j];
		}
		if(!pos[sum]){
			for(int j=1; j <= m; j++){
				if(mask&(1<<(j-1)))dp[mask] = max(dp[mask], dp[mask^(1<<(j-1))]);
			}
		}
		else{
			for(int j=1; j <= m; j++){
				if((mask&(1<<(j-1))) && dp[mask^(1<<(j-1))] == pos[sum]-1)dp[mask] = pos[sum];
			}
		}
		if(dp[mask] == n)ok=1;
	}	
	cout << (ok ? "YES" : "NO");
}
signed main(){

	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int RealName=1;
	// cin >> RealName;

	while(RealName--)
		AlemAmenov();
	
return 0;
}	

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