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Questions and Answers
What does the function palindrome primarily check for?
What does the function palindrome primarily check for?
Which of the following statements about the prime function is true?
Which of the following statements about the prime function is true?
What is the output of the palindrome function if the input is 121?
What is the output of the palindrome function if the input is 121?
In the rev function, what is the purpose of the loop?
In the rev function, what is the purpose of the loop?
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What condition does the c == n check in the last function related to the Armstrong number?
What condition does the c == n check in the last function related to the Armstrong number?
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Study Notes
Palindrome Function
- Checks if a number is a palindrome by reversing its digits.
- Initializes
ato the original number andrto 0 to hold the reversed number. - Uses a loop to extract each digit: multiplies
rby 10 to shift digits and adds the last digit ofnusingn % 10. - Compares the reversed number
rwith the original numberato determine if it is a palindrome. - Outputs "It is a Palindrome" if true, otherwise outputs "It isn't a Palindrome".
Prime Function
- Intended to check if a number is prime starting from
i = 2. - Uses a
forloop to iterate from2ton-1for divisibility checking. - An individual number is considered prime if it has no divisors other than
1and itself.
Armstrong Function
- Checks if a number is an Armstrong number (sum of its digits raised to the power of the number of digits equals the number itself).
- Initializes
cto zero for accumulating the sum of digits raised to the third power. - The loop processes each digit using modulus and division operations to sum them up.
- Compares the calculated sum
cwithnfor validation. - Outputs "Armstrong No." if they are equal, otherwise outputs "Not Armstrong".
Reverse Function
- Intended to print the reverse of a number.
- Uses a loop to extract each digit from the number
nthrough division. - Outputs each digit as it is processed, indicating the result as "Reverse: ".
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Description
Test your knowledge on C programming functions related to palindrome, prime numbers, and Armstrong numbers. This quiz covers key concepts and implementation strategies for numerical manipulation in C. Challenge yourself to understand these fundamental programming tasks.
