/*************************************************************************    > File Name: words_sort.c    > Author: KrisChou    > Mail:zhoujx0219@163.com     > Created Time: Sun 24 Aug 2014 08:41:42 PM CST ************************************************************************/#include <stdio.h>#include <stdlib.h>#include <string.h>#define N 128#define WORD_CNT 128#define WORD_LEN 256static int my_isspace(char c){    if(c == ‘ ‘|| c == ‘\n‘ || c == ‘\t‘ || c == ‘\v‘)        return 1;    else        return 0;}static void word_show(char(*words)[WORD_LEN],int cnt){    int index;    for(index = 0; index < cnt; index++)    {        printf("%-15s", words[index]);    }}static void word_save(char *line, int bg, int end, char *dest){    int index,index_dest;    for(index = bg,index_dest = 0; index <= end; index++,index_dest++)    {        dest[index_dest] = line[index];    }    dest[index_dest] = ‘\0‘;}static int word_split(char *line, char(*words)[WORD_LEN]){    int bg,end;    int word_cnt;    bg = 0;    word_cnt = 0;    while(line[bg] != ‘\0‘)    {        while(my_isspace(line[bg]))        {            bg++;        }        if(line[bg] == ‘\0‘)        {            break;        }        end = bg;        while(line[end] != ‘\0‘ && !my_isspace(line[end]))        {            end++;        }        word_save(line,bg,end-1,words[word_cnt++]);        bg = end;    }    return word_cnt;}static void word_sort(char(*words)[WORD_LEN],int cnt){    int pos,index;    char key[WORD_LEN];    memset(key,0,WORD_LEN);    for(pos = 1; pos < cnt; pos++)    {        strcpy(key,words[pos]);        for(index = pos - 1; index >= 0; index--)        {            if(strcmp(key,words[index]) < 0)            {                strcpy(words[index+1],words[index]);            }else            {                break;            }        }        strcpy(words[index+1],key);    }}int main(int argc, char *argv[]){    char line[N];    char arr[WORD_CNT][WORD_LEN];    int word_cnt;    while(fflush(stdin),gets(line) != NULL)    {        word_cnt = word_split(line,arr);        word_show(arr,word_cnt);        printf("\n");        word_sort(arr,word_cnt);        word_show(arr,word_cnt);        printf("\n");    }    return 0;}