52.To swap two strings

#include <stdio.h>

#include <string.h>

#include <malloc.h>

int main()

{

   char first[100], second[100], *temp;

   printf("Enter the first string\n");

   gets(first);

   printf("Enter the second string\n");

   gets(second);

   printf("\nBefore Swapping\n");

   printf("First string: %s\n",first);

   printf("Second string: %s\n\n",second);

   temp = (char*)malloc(100);

   strcpy(temp,first);

   strcpy(first,second);

   strcpy(second,temp);

   printf("After Swapping\n");

   printf("First string: %s\n",first);

   printf("Second string: %s\n",second);

   return 0;

}