C string program

Question

I have been given a task at school to write a program that

• Reads three strings
• Stores the third string in dynamically allocated memory
• Print out the last 4 letters of the first word alphabetically.

Here is the program I have so far. The strings are all stored in different variables, making them hard to sort. If anyone could give me a hand and help me finish this program, I would be very grateful.

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
   char word1[101];
   char word2[101];
   char* word3;
   char buffer[101];
   scanf("%s", word1);
   scanf("%s", word2);
   scanf("%s", buffer);
   word3 = (char *) malloc(strlen(buffer)+1);
   strcpy(word3, buffer);

   return 0;
}

Answer 1

You can use the strcmp() function to compare the strings.

Also, don't forget to clean up the memory pointed to by word3 using the free() function before you are finished.