题解 | #寻找峰值#
寻找峰值
https://www.nowcoder.com/practice/fcf87540c4f347bcb4cf720b5b350c76
import java.util.*; public class Solution { /** * 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 * * * @param nums int整型一维数组 * @return int整型 */ public int findPeakElement (int[] nums) { int left = 0; int right = nums.length - 1; int mid; while (left < right) { mid = (left + right) / 2; if(nums[mid]>nums[mid+1]){ right=mid; }else{ left=mid+1; } } return right; } }
二分查找法,区间为做闭右开