java 35.搜索插入位置（＃）。java

Posted 2021-05-08

    public int searchInsert(int[] A, int target) {
        int low = 0, high = A.length-1;
        while(low<=high){
            int mid = (low+high)/2;
            if(A[mid] == target) return mid;
            else if(A[mid] > target) high = mid-1;
            else low = mid+1;
        }
        return low;
    }

public class Solution {
    public int searchInsert(int[] nums, int target) {
        if (nums == null || nums.length < 1) return 0;
        int i = 0;
        int j = nums.length - 1;
        while (i < j) {
            int mid = i + (j - i) / 2;
            if (nums[mid] == target) return mid;
            else if (nums[mid] < target) {
                i = mid + 1;
            } else {
                j = mid - 1;
            }
        }
        return nums[i] < target ? i + 1 : i;
    }
}