Practice 30 Top C Programming Questions on String
Q1. Write a program to find the length of a string without using the strlen function.
Q2. Write a program to copy a string to another variable without using the strcpy function.
Q3. Write a program to reverse a string without using library functions.
Q4. Write a program to concatenate two strings without using the strcat function.
Q5. Write a program to convert all lowercase letters in a string to uppercase.
Q6. Write a program to convert all uppercase letters in a string to lowercase.
Q7. Write a program to count the number of vowels and consonants in a string.
Q8. Write a program to check if a string is a palindrome.
Q9. Write a program to count the number of words in a string.
Q10. Write a program to compare two strings and check if they are equal.
Q11. Write a program to count the frequency of a specific character in a string.
Q12. Write a program to check if a string contains only numeric digits.
Q13. Write a program to convert a numeric string into an integer (without using atoi).
Q14. Write a program to replace all occurrences of a character in a string with another character.
Q15. Write a program to count the number of uppercase and lowercase letters in a string.
Q16. Write a program to find the first occurrence of a character in a string.
Q17. Write a program to remove all spaces from a string.
Q18. Write a program to reverse each word in a string.
Q19. Write a program to check if one string is a substring of another.
Q20. Write a program to count alphabets, digits, and special characters in a string.
Q21. Write a program to convert a string to lowercase without using library functions.
Q22. Write a program to convert a string to uppercase without using library functions.
Q23. Write a program to find the last occurrence of a character in a string.
Q24. Write a program to check if two strings are equal.
Q25. Write a program to find the length of a string without using the strlen() function.
Q26. Write a program to copy one string into another without using library functions.
Q27. Write a program to find palindrome strings from an array of strings.
Q28. Write a program to concatenate two strings without using strcat().
Q29. Write a program to count the number of words in a string.
Q30. Write a program to split a string into words by spaces.
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