找出最长的字符串

#include "stdafx.h"

 

char word[100] = { "hello hellll heeeek  heehehk  kkkkkk" };

 

bool Is_char(char m)
{
 if ((m > 'a' && m < 'z') || (m > 'A' && m < 'Z'))
 {
  return 1;
 }
 else
 {
  return 0;
 }
}

 

int main()
{
 int num = sizeof(word) / sizeof(char);
 int length = 0;
 int len = 0;
 int i = 0;
 int start_pos = 0;
 int start_flag = -1;
 int rtn_pos = -1;
 for (i = 0; i < num; i++)
 {
  if (Is_char(word[i]))
  {
   if (start_flag == 0)
   {
    start_pos = i;
    start_flag = 1;
    //len = 1;
   }
   len++;
  }
  else
  {
   if (len > length)
   {
    length = len;
    rtn_pos = start_pos;
   }

 

   start_flag = 0;
   len = 0;

 

  }
 }

 printf("len:%d",length);
 printf("pos:%d", rtn_pos);
    return 0;
}

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