Submission #4035198

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int n,n1,n2,n3;
bool dd(int x,int s)
{if(s>100||x<0||x==n1||x==n2||x==n3) return false;
if(x==0) return true;
if (dd(x-1,s+1)||dd(x-3,s+1)||dd(x-2,s+1)) return true;
}
int main()
{cin>>n>>n1>>n2>>n3;
if(dd(n,0)&&n<=300)cout<<"YES";
else cout<<"NO";
return 0;
}

Submission Info

Judge Result