C语言字符串原地压缩实现方法

本文实例讲述了C语言字符串原地压缩的实现方法，对于学习字符串操作的算法设计有不错的借鉴价值。分享给大家供大家参考。具体方法如下：

字符串原地压缩示例: "eeeeeaaaff"压缩为"e5a3f2"

具体功能代码如下：

/*
* Copyright (c) 2011 alexingcool. All Rights Reserved.
*/
#include <iostream>
#include <iterator>
#include <algorithm>

using namespace std;

char array[] = "eeeeeaaaff";
char array2[] = "geeeeeaaaffg";
const int size = sizeof array / sizeof *array;
const int size2 = sizeof array2 / sizeof *array2;

void compression(char *array, int size)
{
 int i = 0, j = 0;
 int count = 0;

 while(j < size) {
 count = 0;
 array[i] = array[j];

 while(array[j] == array[i]) {
  count++;
  j++;
 }
 if(count == 1) {
  i++;
 }
 else {
  array[++i] = '0' + count;
  ++i;
 }
 }
 array[i] = 0;
}

void main()
{
 compression(array, size);
 cout << array << endl;
 compression(array2, size2);
 cout << array2 << endl;
}

相信本文所述对大家C程序算法设计的学习有一定的借鉴价值。