HDU-2071

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#include<stdio.h>int main(void){int n,t,i;double high[101],maxn;scanf("%d",&n);while(n--){        maxn=0;    scanf("%d",&t);    for(i=0;i<t;i++){            scanf("%lf",&high[i]);    if(maxn<high[i])maxn=high[i];    }    printf("%.2f\n",maxn);}return 0;}