include "string.h"int main(){char s[100],t;int i,j,sum;printf("Input:\n");gets(s);sum=strlen(s);for(i=0;i<sum-1;i++)for(j=0;j<sum-i-1;j++)if(s[j+1]<=s[j]){t=s[j];s[j]=s[j+1];s[j+1]=t;} printf("Output:\n");puts(s);return 0;} ...