Without using built-in string functions, write a menu-driven C program

Question

Without using built-in string functions, write a menu-driven C program using switch-case to perform the following on two strings:

(i) Count the number of vowels in each string

(ii) Check whether both strings are palindromes

(iii) Replace a character with another

(iv) Find the frequency of each character

12 Sep 2025

Answer :

Word Count : 544

To solve this problem in C without using built-in string functions, we need to manually handle strings using arrays and loops. The program will provide a menu to perform the requested operations on two input strings. ```c #include #define MAX 100 // Function to calculate the length of a string manually int stringLength(char str[]) { int length = 0; while (str[length] != '\0') { length++; } return length; } // Function to count vowels in a string int countVowels(char str[]) { int count = 0; for (int i = _________ ____ ______ __________ ______ ____.
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