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#include<iostream.h>
#include<fstream>
#include<math.h>
using namespace std;
float fun(int x1,int x2,int y1,int y2)
{return sqrt((x1-x2)*(x1-x2)+(y1-y2)*(y1-y2));
}
int main()
{ifstream f("cmap.in");
ofstream g("cmap.out");
int i,j,n,a[100001],b[1000001];
float min,u;
cin>>n;
for(i=1;i<=n;i++)
f>>a[i]>>a[j];
min=fun(a[1],a[2],b[1],b[2]);
for(i=1;i<n;i++)
for(j=i+1;j<=n;j++)
{u=fun(a[i],a[j],b[i],b[j]);
if(u<min)
min=u;
}
g<<min<<"/n";
f.close();
g.close();
return 0;
}