剑指Offer02 替换空格

 /*************************************************************************
     > File Name: 02_Replace_Blank.c
     > Author: Juntaran
     > Mail: [e-mail]
     > Created Time: 2016年08月24日 星期三 01时28分33秒
  ************************************************************************/

 #include <stdio.h>

 void ReplaceBlank(char* str)
 {
     if (str==NULL)
     {
         return;
     }

     int blankCount = ;
     int alphaCount = ;
     int i = ;
     while (str[i] != '\0')
     {
         if (str[i] == ' ')
             blankCount ++;
         alphaCount ++;

         i ++;
     }
     printf("alphaCount is %d\n", alphaCount);
     printf("blankCount is %d\n", blankCount);

     int newLength = alphaCount + *blankCount;
     printf("newLength is %d\n", newLength);
     int p1 = alphaCount + ;
     int p2 = newLength + ;
     while (p1>= && p2>p1)
     {
         if (str[p1] == ' ')
         {
             str[p2--] = '';
             str[p2--] = '';
             str[p2--] = '%';
         }
         else
         {
             str[p2--] = str[p1];
         }
         p1 --;
     }
 }

 int main()
 {
     char str[] = "We are Happy!";
     printf("Before: %s\n", str);
     ReplaceBlank(str);
     printf("After: %s\n", str);
 }