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C++ Practice questions
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Questions to practice your c++ coding skills. Questions with expected input and output provided.
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University of the WitwatersrandCourse: Computer science I, Introduction to algorithms and programming
Practice problems for C++
1. Write a program that takes in two integers as input and displays the result of the following operations
on them:
a. Addition
b. Subtraction
c. Multiplication
d. Division
Sample input: 4 2
Expected output:
Addition: 6
Subtraction: 2
Multiplication: 8
Division: 2
2. Write a program that takes in a positive integer as input and checks if it is a prime number or not.
Display "Prime" if it is prime and "Not prime" otherwise.
Sample input: 7
Expected output: Prime
3. Write a program that takes in a string as input and displays the reverse of the string.
Sample input: "Hello World"
Expected output: "dlroW olleH"
4. Write a program to compute the sum of the first n natural numbers using the formula n(n+1)/2.
Sample input: 5
Expected output: 15
5. Write a program that takes in a string as input and checks if it is a palindrome or not. Display
"Palindrome" if it is a palindrome and "Not a palindrome" otherwise.
Sample input: "racecar"
Expected output: Palindrome
6. Write a program that takes in an integer array of size n as input and displays the maximum and
minimum elements in the array.
Sample input: {4, 2, 5, 1, 3}
Expected output: Maximum: 5, Minimum: 1
7. Write a program to sort the elements of an integer array in ascending order using bubble sort.
Sample input: {64, 34, 25, 12, 22, 11, 90}
Expected output: {11, 12, 22, 25, 34, 64, 90}
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