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- #include<stdio.h>
- int main()
- {
- int cas,n,i,j,k,ans,temp,t;
- scanf("%d",&t);
- for(cas=1;cas<=t;cas++)
- {
- scanf("%d",&n);
- int a[n+5];
- ans=0;
- for(i=0;i<n;i++)
- scanf("%d",&a[i]);
- for(i=0;i<n;i++)
- {
- for(j=i+1;j<n;j++)
- {
- if(a[i]>a[j])
- {
- temp=a[i];
- a[i]=a[j];
- a[j]=temp;
- }
- }
- }
- for(i=0;i<n;i++)
- printf("%d ",a[i]);
- for(i=1;i<n;i++)
- {
- k=a[i]-a[i-1];
- ans+=k;
- }
- printf("%d\n",ans*2);
- }
- return 0;
- }
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