C Programming: Concatenate Two Strings Manually
C String: Exercise-19 with Solution
Write a program in C to combine two strings manually.
Sample Solution:
C Code:
#include <stdio.h>
#include <string.h>
int main() {
char str1[100], str2[100], i, j, l, m, k; // Declare character arrays and variables for iteration
printf("\n\nConcatenate Two Strings Manually :\n"); // Display information about the task
printf("-------------------------------------\n");
printf("Input the first string : ");
fgets(str1, sizeof str1, stdin); // Read the first string from standard input
printf("Input the second string : ");
fgets(str2, sizeof str2, stdin); // Read the second string from standard input
l = strlen(str1); // Get the length of the first string
m = strlen(str2); // Get the length of the second string
for (i = 0; i < l - 1; ++i); /* value i contains reaches the end of string str1. */
str1[i] = ' '; /* Add a space with string str1. */
i++; /* Increase i by 1 for the blank space */
for (j = 0; j < m - 1; ++j, ++i) {
str1[i] = str2[j]; // Concatenate str2 to str1 after the added space
}
k = strlen(str1); // Get the length of the concatenated string
printf("After concatenation the string is : \n ");
for (i = 0; i < k; ++i) { // Display the concatenated string
printf("%c", str1[i]);
}
printf("\n\n");
return 0; // Return 0 to indicate successful execution of the program
}
Sample Output:
Concatenate Two Strings Manually : ------------------------------------- Input the first string : this is string one Input the second string : this is string two After concatenation the string is : this is string one this is string two
Flowchart :
C Programming Code Editor:
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