Sorting of words in a String : C Code

Program to sort the words of a string

/* To sort the words of an input string */

#include<stdio.h>

#include<string.h>

#include<malloc.h>

int main()

{

char str[40],*x[10],*temp;

int i=0,j=0,len,t,k,l,tmp;

printf("\n Enter a string:");

gets(str);

len=strlen(str);

for(i=0;i<=len;i++)

      {

      k=i;

      tmp=0;

      while(str[k]!=' ' && str[k]!='\0')

            {

            k++;

            tmp++;

            if(str[i]=='\n')

            break;

            }

            x[j]=(char *)malloc(tmp*sizeof(char));

            l=0;

                  for(t=i;t<tmp+i;t++)

                  {

                        *(x[j]+l)=str[t];

                        l++;

                  }

                  *(x[j]+l)='\0';

            i=k;

            j++;

            }

for(i=0;i<j-1;i++)

      {

            for(k=i+1;k<j;k++)

                  {

                  if(strcmp(x[i],x[k])>0)

                        {

                        temp=x[k];

                        x[k]=x[i];

                        x[i]=temp;

                        }

                  }

      }

puts("\n Sorted words of the string:\n");

for(i=0;i<j;i++)

      printf("%s\n",x[i]);

return 0;

}

Input/Output:

Enter a string:sorting of the words in a string

 Sorted words of the string:

a
in
of
sorting
string
the
words