Question

• Write a C program that …
  1. reads (from standard input) five words, with each of the words being entered on a separate line
  2. prints (to standard output) the words in reverse alphabetical order
• Hints
  • http://www.cplusplus.com/reference/cstring/strcmp

Answer 1

Hello, here is the completed code you wanted. Every important statement is explained using comments. Please check and let me know if you have any doubts. Thanks.

CODE

//library for standard input and output
#include<stdio.h>

//main function
int main()
{
   //variables
   char words[5][100], temp[100];
   int i, j;
  
   //prompt for words
   printf("Enter 5 words:\n");
  
   //loop for reading words into array
   for(i = 0; i < 5; i++)
   {
       //reading words
       scanf("%s", words[i]);
   }
  
   //outer loop for sorting
   for (i = 0; i < 5; i++)
    {
       //inner loop for sorting
        for (j = i + 1; j < 5; j++)
        {
           //comparing words and sorting
           if(strcmp(words[i], words[j]) < 0)
           {
               strcpy(temp, words[i]);
               strcpy(words[i], words[j]);
               strcpy(words[j], temp);
           }
       }
   }
  
   //loop for printing words in reverse alphabetical order
   printf("\nwords in reverse alphabetical order:\n");
   for(i = 0; i < 5; i++)
   {
       //printing words
       printf("%s\n", words[i]);
   }
}

OUTPUT

CODE SCREEN SHOT