#include <stdio.h>
int main(void) {
int t;
while(t--)
{
int n;
int arr[n];
for(int i=0;i<n;i++)
{
}
int temp;
for(int i=0;i<n-1;i++)
{
for(int j=i+1;j<n;j++){
temp=arr[i];
if(arr[j]>arr[i]){
temp=arr[j];
arr[j]=arr[i];
arr[i]=temp;
}
}
}
int arr2[n-1];
for(int j=0;j<=n-2;j++)
{
arr2[j]=arr[j]-arr[j+1];
}
int min;
min=arr2[0];
for(int i=0;i<=n-2;i++)
{
if(arr2[i]<min){
min=arr2[i];}
}
}
return 0;
}
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