说明：
1. 浮点数是可以直接比较大小的，用于if判断
2. printf(“%.2f",...
/*
* =====================================================================================
*
* Filename: hdu2071.c
*
*
* Version: 1.0
* Created: 2013年11月19日 14时48分00秒
* Revision: none
* Compiler: gcc
*
* Author: Wenxian Ni (Hello World~), niwenxianq@qq.com
* Organization: AMS/ICT
* Description:
Max Num
Time Limit: 1000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 11527 Accepted Submission(s): 7381
Problem Description
There are some students in a class, Can you help teacher find the highest student .
Input
There are some cases. The first line contains an integer t, indicate the cases; Each case have an integer n ( 1 ≤ n ≤ 100 ) , followed n students’ height.
Output
For each case output the highest height, the height to two decimal plases;
Sample Input
2
3 170.00 165.00 180.00
4 165.00 182.00 172.00 160.00
Sample Output
180.00
182.00
*
* =====================================================================================
*/
#include <stdio.h>
int main()
{
int ncase;
int n;
float height, max_he;
scanf("%d",&ncase);
while(ncase--)
{
max_he = 0;
scanf("%d",&n);
while(n--)
{
scanf("%f",&height);
if(height > max_he)
max_he = height;
}
printf("%.2f\n",max_he);
}
return 0;
}