HDU 1040 As Easy As A+B

#include <cstdio> 
#include <algorithm>
using namespace std;
int T,a[1005],n;
int main(){
    scanf("%d",&T);
    while(T--){
        scanf("%d",&n);
        for(int i=0;i<n;i++)scanf("%d",&a[i]); sort(a,a+n);
        for(int i=0;i<n-1;i++)printf("%d ",a[i]);
        printf("%d\n",a[n-1]);
    }return 0;
}