[LeetCode] Move Zeroes - 整数数组处理问题

目录:
1.Move Zeroes  - 数组0移到末尾 [顺序交换]
2.


一.Move Zeroes 


题目概述:
Given an arraynums, write a function to move all 0's to the end of it while maintaining the relative order of the non-zero elements.For example, givennums = [0, 1, 0, 3, 12], after calling your function,nums should be[1, 3, 12, 0, 0].
Note:
        1.You must do this in-place without making a copy of the array.
        2.Minimize the total number of operations.


解题方法:

题意是把数组nums中0的元素后置,同时不能采用赋值数组。两种方法:
        1.遇到是0的元素从数组最后向前存储并移位,遇到非0元素从前存储;
        2.推荐:从前往后查找,不是0的元素前移,并计算0的个数,后面的全置0。

我的代码:
方法一:Runtime: 28 ms

void moveZeroes(int* nums, int numsSize) {
    int endNum;        //从后计数0
    int startNum;      //从前计数非0
    int temp;
    int i,j;
    
    i = 0;
    startNum = 0;
    endNum = 0;
    while( (i+endNum) < numsSize ) {
        if(nums[i]==0) {
            //依次前移
            for(j=startNum; j
方法二:Runtime: 8 ms
void moveZeroes(int* nums, int numsSize) {
    int count;   //计算0的个数
    int i,j;
    int n;
    
    n = 0;
    count = 0;
    for(i=0; i



(By:Eastmount 2015-9-20 晚上8半     http://blog.csdn.net/eastmount/ )

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