leetcode35

public class Solution {
    public int SearchInsert(int[] nums, int target) {
        for (int i = 0; i < nums.Length; i++)
            {
                if (nums[i] >= target)
                {
                    return i;
                }
            }
            return nums.Length;
    }
}

https://leetcode.com/problems/search-insert-position/#/description

补充一个Java的实现：

 1 class Solution {
 2     public int searchInsert(int[] nums, int target) {
 3         int n = nums.length;
 4         if (n == 0){
 5             return 0;
 6         }
 7         for(int i=0;i<n;i++){
 8             int cur = nums[i];
 9             if(cur < target){
10                 continue;
11             }else{
12                 return i;
13             }
14         }
15         return n;
16     }
17 }

Java版本代码，使用二分查找：

 1 class Solution {
 2     public int searchInsert(int[] nums, int target) {
 3         int n = nums.length;
 4         if (n == 0){
 5             return 0;
 6         }
 7         if(target < nums[0]){
 8             return 0;
 9         }
10         if(target > nums[n-1]){
11             return n;
12         }
13         int low = 0;
14         int high = n;
15         while(low <= high){
16             int mid = (high + low) / 2;
17             int cur = nums[mid];
18             if(cur == target){
19                 return mid;
20             }else if(cur < target){
21                 low = mid + 1;
22             }else{
23                 high = mid - 1;
24             }
25         }
26         return low;
27     }
28 }

posted on 2017-04-19 11:42 Sempron2800+ 阅读(148) 评论(0) 编辑收藏举报