Submission #128530

#	Time	Username	Problem	Language	Result	Execution time	Memory
128530		faustaadp	Bank (IZhO14_bank)	C++17	71 / 100	1068 ms	5020 KiB

bank

#include<bits/stdc++.h>
typedef long long ll;
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n,m,i,a[22],b[22];
vector<ll> isi[22];
void hai(ll aa,ll bb)
{
	if(aa==(m+1))
	{
		if(bb==a[1])
		{
			cout<<"YES\n";
			exit(0);
		}
	}
	else
	{
		hai(aa+1,bb);
		hai(aa+1,bb+b[aa]);
	}
}
void cek(ll aa,ll bb,ll cc)
{
	if(aa==(m+1))
	{
		if(bb==a[i])
		{
			isi[i].pb(cc);
		}
	}
	else
	{
		cek(aa+1,bb,cc);
		cek(aa+1,bb+b[aa],cc+(1<<(aa-1)));
	}
}
int main()
{
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n>>m;
	for(i=1;i<=n;i++)cin>>a[i];
	for(i=1;i<=m;i++)cin>>b[i];
	if(1)
	{
		isi[0].pb(0);
		for(i=1;i<=n;i++)
			cek(1,0,0);
		for(i=1;i<=n;i++)
		{
			vector<ll> tem;
			ll ii,jj;
			for(ii=0;ii<isi[i-1].size();ii++)
				for(jj=0;jj<isi[i].size();jj++)
					if(!(isi[i-1][ii]&isi[i][jj]))
						tem.pb(isi[i-1][ii]|isi[i][jj]);
			isi[i]=tem;
		}
		if(isi[n].empty())cout<<"NO\n";
		else cout<<"YES\n";
	}
	else
	{
		hai(1,0);
		cout<<"NO\n";
	}
}

Compilation message (stderr)

bank.cpp: In function 'int main()':
bank.cpp:56:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for(ii=0;ii<isi[i-1].size();ii++)
             ~~^~~~~~~~~~~~~~~~
bank.cpp:57:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for(jj=0;jj<isi[i].size();jj++)
              ~~^~~~~~~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 25 / 25
• Subtask 3: 27 / 27
• Subtask 4: 0 / 29