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水题专杀户的第25题..大神莫笑..#include <stdio.h>
#include <stdlib.h>
int cmp ( const void *a , const void *b )
{
return *(int *)b - *(int *)a;
}
int main()
{
int a[1002],n,m,j,t,z;
scanf("%d",&n);
while(n--){
scanf("%d",&m);
for (j=0;j<m;j++){
scanf("%d",&a[j]);
}
qsort(a,m,sizeof(a[0]),cmp);
z = 0;
for (j=1;j<=m;j++){
t = a[j-1]*j;
if (z<t){
z = t;
}
}
printf("%d\n",z);
}
return 0;
}
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