Submission #4031528

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Source Code Expand

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,a[101],b[101];
	double ans=0;
	cin>>n;
	for(int i=1;i<=n;i++) cin>>a[i]>>b[i];
	for(int i=1;i<=n;i++)
	{
		for(int j=i+1;j<=n;j++)
		{
			if(ans*ans<abs(a[j]-a[i])*abs(a[j]-a[i])+abs(b[j]-b[i])*abs(b[j]-b[i])) ans=sqrt(abs(a[j]-a[i])*abs(a[j]-a[i])+abs(b[j]-b[i])*abs(b[j]-b[i]));
		}
	}
	printf("%.9lf",ans);
} 

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