leetcode 27 Remove Element (C)

原题：

Given an array and a value, remove all instances of that value in place and return the new length.

Do not allocate extra space for another array, you must do this in place with constant memory.

The order of elements can be changed. It doesn't matter what you leave beyond the new length.

Example:
Given input array nums = [3,2,2,3], val = 3

Your function should return length = 2, with the first two elements of nums being 2.

就是去掉数组中的目标数字。

跟上一题的基本一样，没有什么难度。

int removeElement(int* nums, int numsSize, int val) {    int num=0;    for(int n=0;n<numsSize;n++)    {        if(*(nums+n)==val)        {            num++;        }        else        {            *(nums+n-num)=*(nums+n);        }    }    return numsSize-num;}

把数字从后往前扔就好咯