Submission #1089402

#	Time	Username	Problem	Language	Result	Execution time	Memory
1089402		vjudge1	Bank (IZhO14_bank)	C++17	100 / 100	324 ms	4432 KiB

bank

#include <bits/stdc++.h>
using namespace std;
#define accepted ios_base::sync_with_stdio(0);cin.tie(0);
#define Daulbekov signed
#define Makan main
#define double long double
#define pb push_back
#define F first
#define S second
const long long N=5e5+10;
const long long MOD=1e9+7;
const long long INF=2e18;
int binpow(int a,int b){
	a%=MOD;
	if(b==0)return 1;
	if(b%2)return binpow(a,b-1)*a%MOD;
	else {
		int res=binpow(a,b/2);
		return res*res%MOD;
	}
}
bool cmp(pair<int,int>a,pair<int,int>b){
	if(a.F/300!=b.F/300)return a.F/300<b.F/300;
	return a.S<b.S;
}
vector<int>g[1001];
int a[21],b[21],n,m,used[(1<<20)+1];
void get(int v,int mask){
	if(v==n){
		cout<<"YES";
		exit(0);
	}
	if(used[mask])return;
	used[mask]=1;
	for(auto to:g[a[v]]){
		if(!(mask&to)&&used[mask|to]==0){
			get(v+1,(mask|to));
		}
	}
}
Daulbekov Makan(){
//	freopen(".in","r",stdin);
//	freopen(".out","w",stdout);
	accepted
	cin>>n>>m;
	for(int i=0;i<n;i++)cin>>a[i];
	for(int i=0;i<m;i++)cin>>b[i];
	if(n>m){
		cout<<"NO";
		return 0;
	}
	for(int j=0;j<(1<<m);j++){
		int tot=0;
		for(int i=0;i<m;i++){
			if(j&(1<<i))tot+=b[i];
		}
		for(int i=0;i<n;i++){
			if(tot==a[i]){
				g[a[i]].pb(j);
			}
		}
	}
	get(0,0);
	cout<<"NO";
}

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