有15个整数（已排序）存放在一个数组中，输入一个数，要求用折半查找法找出该数在数组中的下标值，

#include int main() { int a[15] = {99, 97, 87, 76, 65, 63, 59, 58, 51, 43, 32, 31, 28, 15, 6}; int x, low, high, mid, n; n = 15; low = 0; high = n - 1; scanf("%d", &x); while (low <= high){ mid = (low + high) / 2; if (x > a[mid]) high