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Search Insert Position

时间:2014-11-21 09:07:16      阅读:186      评论:0      收藏:0      [点我收藏+]

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Given a sorted array and a target value, return the index if the target is found. If not, return the index where it would be if it were inserted in order.

You may assume no duplicates in the array.

Here are few examples.
[1,3,5,6], 5 → 2
[1,3,5,6], 2 → 1
[1,3,5,6], 7 → 4
[1,3,5,6], 0 → 0

C++实现代码:

#include<iostream>
using namespace std;

class Solution {
public:
    int searchInsert(int A[], int n, int target) {
        if(n==0)
            return 0;
        int left=0;
        int right=n-1;
        int mid;
        while(left<=right)
        {
            mid=(left+right)/2;
            if(A[mid]==target)
                return mid;
            else if(A[mid]<target)
                left=mid+1;
            else
                right=mid-1;
        }
        if(left<=right)
            return mid;
        else
            return left;
    }
};

int main()
{
    Solution s;
    int A[10]={3,5,7,8,12,34,65,89,98,100};
    cout<<s.searchInsert(A,10,300)<<endl;
}

 

Search Insert Position

标签:style   blog   io   ar   color   os   sp   on   div   

原文地址:http://www.cnblogs.com/wuchanming/p/4111947.html

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