有n个整数(1<=n<=100)按由小到大顺序存放在一个数组中，输入一个数m，要求用折半查找法找出该数是数组中第几个元素的值。如果该数不在数组中，则输出“Not found.” -There are n integers (1 <= n <= 100) by ascending sequence stored in an array, enter a number m, asked to use a binary search method to find the