zoho -reverse the given string E.g.: Input: one two three Output: three two one

Problem statement: 

Reverse the string.
 

E.g.:
Input: one two three
Output: three two one

Input: I love india
Output: india love I

source code:

#include <stdio.h>
#include <conio.h>
#include<string.h>
int main(void) {
 char a[1000];
 int l,i,s=0,j,c=0;
 clrscr();
 printf("enter the string\n");
 gets(a);
 l=strlen(a);
 for(i=l-1;i>=0;i--)
 {
      s++;
  if(a[i]==' ')
  {
   for(j=i+1;j<i+s;j++)
   {
    if(a[j]!=' ')
    {
         printf("%c",a[j]);
         c++;
      }
       else if(a[j]==' '||j== l-1)
       {
  printf(" ");
  s=0;
  j=i+s+10;
       }
   }
  }
       else if(i==0)
  {
   for(j=i;j<i+s;j++)
   {
    if(a[j]!=' ')
    {
         printf("%c",a[j]);
         c++;
      }
       else if(a[j]==' '||j== l-1)
       {
  printf(" ");
  s=0;
  j=i+s+10;
       }
   }
  }
  if(c>0)
  {
  printf(" ");
  c=0;
  }
 }
 // your code goes here
 getch();
}