abcnull的博客文章目录 一般写法,但容易导致值溢出 left + right这步操作有可能导致 int溢出 ...防止值溢出写法 left加上right减去left差值的一半绝对比left + right安全的多 int left = 0, right = n, mid; mid = left + (r...
weixin_39958100的博客正常实现Input : [1,2,3,4,5]key : 3return the index : 2public int binarySearch(int[] nums, int key) {int l = 0, h = nums.length - 1;while (l <= h) {int m = l + (h - l) / 2;if (nums[m] == key) {...