How to Fill an Array and Find Repeated Elements in C++
In this lesson, we write a C++ program that asks the user to enter array elements and store them in an array. Then it asks the user again which number he wants to check in the array, prints the original array, and prints how many times that number is repeated.
For example, if the user inputs:
5
Insert Array Elements:
Element [1]: 2
Element [2]: 2
Element [3]: 2
Element [4]: 4
Element [5]: 5
Which number do you want to check in the array?
2
Output:
Original Array: 2 2 2 4 5
2 is repeated 3 time(s)
In this video, you will learn:
• How to ask the user to enter array elements in C++
• How to store user input inside an array
• How to display the original array on the screen
• How to ask the user which number he/she wants to check
• How to count how many times a number is repeated in the array
• How to build a CountRepeatedNumber() function
• How to solve an important beginner array problem step by step
• How to use loops and functions together in a practical way
This lesson is a very important beginner-friendly introduction to arrays, searching, and counting repeated values in C++.
It also helps you understand how to break one problem into small simple functions, such as inputting the array, displaying it, and counting repetitions.
If you are learning C++ problem solving step by step, this lesson will help you understand arrays, loops, functions, and how to analyze repeated values correctly.
This lesson 21 of Course 4: Problem Solving for Programmers Using C++ (Part 2) – Beginner Track.
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