#include<stdio.h>#include<string.h>intmain(){charch[500001];//如果是用char *ch定义一定要用malloc函数申请空间 ch = (char*)malloc(sizeof(ch));intflag =0; gets(ch);intl = strlen(ch)-1;intx =0;while(l){if(ch[l]!='') x++;else{ ch[l]='\0';if(x) {if(flag) putchar(''...