Repunit Numbers in C++22 May 2025 | 4 min read In this article, we are going to discuss Repunit numbers in C++ with its properties, applications, and an example. What are Repunit Numbers in C++?Repunit numbers are intriguing mathematical constructs characterized by their unique property: it proved that they are just made up of the numeral one or incorporated predominantly of the digit one. The term repunit is formed from the union of two words: repeated and unit. For example, numbers 1, 11, 111 and so on are known as the repunit numbers. Properties of Repunit Numbers:Several properties of Repunit Numbers in C++ are as follows:
Applications:1. Computer Science and data structures
2. Finance and Investment
3. Game Theory and Strategy
Example:Let us take an example to illustrate the Repunit numbers in C++ in C++. Output: No Explanation:This given C++ program will return a True or False as to whether a given number of RepUnitNumber is available in a specification base. For this problem, a number is called a repunit number if it consists only of the digit '1' in some base. Here, the program has been written such that it will evaluate if the input number in question, when converted to the given base (in this case, base 2), contains only the digit '1' and there are at least three occurrences of it. This capable program finds the number of digits and counts the amount of '1's in the number. In the case that the number meets both of the above conditions, it says that the number is a repunit; otherwise not. This example checks a number 68 in base 2, and concludes that this number isn't a repunit number because the number isn't all 1's in its binary representation. ConclusionIn conclusion, the C++ program is great, even confirming the cool mathematical fact that repunits are just numbers made up of the digit 1. The implementation makes sure that whatever the input number is (binary or any other base), it contains only '1's and a minimum of three occurrences in above mentioned way. In the given example, number 68, the example shows that it is not a repunit number in base 2 because its binary is not only consisting all '1' as base 2 is. Not only is this program a useful tool for identifying repunit numbers but it also helps in exposing their characteristics and their role in number theory and in multiple other fields, including computer science up to finance and game theory. |
Sequence Alignment Problem in C++
In this article, we will discuss the Sequence Alignment problem in C++ with its approach, an example, time complexity, and space complexity. Sequence Alignment problem: One of the most fundamental problems in the biological sciences is the Sequence Alignment problem, which asks how similar two amino acid...
6 min read
std::transform_reduce in C++
In this article, we will discuss the std::transform_reduce with its syntax, implementation, and property in C++. Introduction of the std::transform_reduce The inclusion of std::transform_reduce in the C++17 standard was a major turning point for modern C++ programming. The method in question, which is tucked away inside the Standard...
6 min read
Assign Cookies in C++
The Assign Cookies problem is a simple problem that specifically targets the sharing of resources with scarce availability to meet as many needs as possible. Initial coding interview problem on a plate shows key principles in the application of greedy algorithms. In this problem, we...
10 min read
Minimize Count of Unequal Elements at Corresponding Indices between given Arrays in C++
In this article, we will discuss how to minimize the count of unequal elements at corresponding indices between arrays in C++. Introduction In C++ programming, we tackle a topic that applies to many different contexts, from competitive programming to real-world situations where data alignment is critical and reduces...
7 min read
Punctuators in C++
In C++, punctuators do not define an operation that produces a value; rather, they provide syntactic and semantic meaning to the compiler. Certain punctuators may also be important to the preprocessor or C++ operators when used singly or in combination. The basic C++ punctuation is as follows. Semicolon...
4 min read
Game of Life algorithm in C++
In this article, we discuss about the . John Horton Conway, the creator of the Game of Life, is a cellular automaton consisting of an m x n board. Rather than acting as a board game, it generates a mathematical model for simulating interaction between entities...
6 min read
Check if the number is a Pythagorean prime or not in C++
A prime is said to be Pythagorean if it can be written as follows: 4n+1, where n is a non-negative integer. Such 4n+1 prime examples as 5, 13, and 29 are helpful in number theory studies because they originate from Pythagorean triples. Checking whether a...
5 min read
Find the toggle bits of a number except the first and last bits in C++
In this article, we will find the toggle bits of a number except the first and last bits in C++. Given a number, the aim is to toggle everything except the first and final bit. Examples: Input: 11 Output: 13 Binary representation:- 1 0 1 1 After toggling first and last: 1...
2 min read
Compare and Swap (CAS) in C++
Amid current research in concurrent programming, it is critical to synchronize the shared data to be written in and to be read and modified by multiple threads. It can be done with traditional locking techniques such as mutex to temporarily halt other threads while a...
14 min read
Ramanujan-Nagell Conjecture in C++
In this article, we will discuss with several examples. The Ramanujan-Nagell Conjecture proposed by Srinivasa Ramanujan and is extended by Trygve Nagell, saying that the equation 2n-7 = x2 has solutions in natural numbers n and x exist just when the values of n are 3,...
4 min read
We request you to subscribe our newsletter for upcoming updates.

We provides tutorials and interview questions of all technology like java tutorial, android, java frameworks
G-13, 2nd Floor, Sec-3, Noida, UP, 201301, India