Question

Write a C Program to concatenate three strings into third string without strcat() function.​

Answer 1

Answer:

/* C program to concatenate two strings without

* using standard library function strcat()

*/

#include <stdio.h>

int main()

{

char str1[50], str2[50], i, j;

printf("\nEnter first string: ");

scanf("%s",str1);

printf("\nEnter second string: ");

scanf("%s",str2);

/* This loop is to store the length of str1 in i

* It just counts the number of characters in str1

* You can also use strlen instead of this.

*/

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];

}

// \0 represents end of string

str1[i]='\0';

printf("\nOutput: %s",str1);

return 0;

}

Output:

As you can see we have entered two strings and in the output of the program both the strings got concatenated.

!!hope you got it!!♥️