Question

Problem 5. (5 points] Use string functions. Write a program that: 1) Ask the user to write two strings. 2) If both strings are equal, print an appropriate message then print out both strings with their length. 3) If the strings are not equal, print an appropriate message then concatenate both strings and print out the length of the concatenating strings. 4) In the main function prints both arrays.
use C language please

Answer 1

C PROGRAM FOR CHECKING WEATHER GIVEN TWO STRINGS ARE EQUAL OR NOT AND CONCATENATE THEM.

#include <stdio.h>
#include <string.h>
int main()
{
int n,k,l;
char str1[50], str2[50], i, j;
printf("\nEnter first string: ");
scanf("%s",str1);
printf("\nEnter second string: ");
scanf("%s",str2);
n=strlen(str1);
k=strlen(str2);
if(n==k)
{
printf("\n ---Two strings are equal---");
printf("\n Firstt string =%s",str1);
printf("\n Second string =%s",str2);
printf("\n Length %d",n);
}
else
///////////////// /* This loop is to store the length of str1 in i
//////////////////// * It just counts the number of characters in str1
{
printf("\n ---Two strings are not equal---");
for(i=0; str1[i]!='\0'; ++i);

/////////////////////* This loop would concatenate the string str2 at the end of str1
for(j=0; str2[j]!='\0'; ++j, ++i)
{
str1[i]=str2[j];

l=strlen(str1);
}
/////////////// // \0 represents end of string
str1[i]='\0';

printf("\nConcatenated output: %s",str1);

printf("\nLength %d",l);
}
return 0;
}