Submission #68559

#	Time	Username	Problem	Language	Result	Execution time	Memory
68559		quoriess	Bank (IZhO14_bank)	C++14	100 / 100	496 ms	23296 KiB

bank

#include <bits/stdc++.h>
using namespace std;
typedef long long int lli;
int main(){
	int n,m;
	cin>>n>>m;
	vector<int> salary,banks;
	for (int i = 0; i < n; i++)
	{
		int a;
		cin>>a;
		salary.push_back(a);
	}
	for (int j = 0; j < m; j++)
	{
		int a;
		cin>>a;
		banks.push_back(a);
	}
/*
2 4
3 6
5 1 2 1
 
*/
	vector<vector<bitset<20> > > sncler(n,vector<bitset<20> >());
	for (int i = 0; i < 1<<m; i++)
	{
		bitset<20> smd(i);
		int tplm=0;
		for (int j = 0; j < m; j++)
		{
			if(smd[j])
                tplm+=banks[j];
		}
		for(int j=0;j<n;j++){
			if(salary[j]==tplm)
                sncler[j].push_back(smd);
		}
	}
	int mstb=1<<m;
	bool dp[n][mstb];
	vector<int> bakilacaklar;
	for(int i=0;i<n;i++){
        for(int j=0;j<mstb;j++)dp[i][j]=0;
	}
	for(auto j:sncler[0]){
		dp[0][j.to_ulong()]=1;
   		bakilacaklar.push_back(j.to_ulong());
	}
	for (int i = 1; i < n; i++)
	{
    	vector<int> nb;
		for(auto k:bakilacaklar){
			for (auto j: sncler[i])
			{
				if((k&j.to_ulong())==0){
					bool b=dp[i][k^j.to_ulong()];
					
					dp[i][k^j.to_ulong()]=dp[i-1][k]||dp[i][k^j.to_ulong()];
					if(b!=dp[i][k^j.to_ulong()])nb.push_back(k^j.to_ulong());
				}
			}
		}
		swap(bakilacaklar,nb);
	}
	bool ans=0;
    for(int i=1;i<mstb;i++)if(dp[n-1][i])ans=true;
    cout << (ans?"YES":"NO")<<"\n";
	return 0;
}

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