Problems Description
<span style="color:#32656D;font-family:Tahoma;background-color:#FFFFFF;font-size:18px;"> 已知Nitems数,求这Nitems数中最大值与最小值的差。</span>
Input格式
<span style="color:#32656D;font-family:Tahoma;background-color:#FFFFFF;font-size:18px;"> Page 一行仅一items数N,其中N(1<=N<=10000)为数的items数</span><br /> <span style="color:#32656D;font-family:Tahoma;background-color:#FFFFFF;font-size:18px;"> Page 二行有Nitems整数。</span>
Output格式
<span style="font-size:18px;"> 仅一items数,即最大值与最小值的差。</span>
Sample
Sample Input 1
5
4 3 5 7 1
Sample Output 1
6
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