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Programming Articles
Page 1623 of 2547
C++ program to search an element in a sorted rotated array
A sorted and rotated array is an array that is sorted in ascending order and then rotated either left or right by a specific number of elements. There should exist exactly one pivot point around which the array is rotated. The array can be said to be split into two halves and each half is a sorted array. For example: {5, 6, 7, 1, 2, 3} is a sorted and rotated array and {5, 6, 7, 8, 2, 5, 4, 5} is not a sorted and rotated array. In this article, we have an array of integers. Our task is ...
Read MoreCheck if an array is sorted and rotated in C++
A sorted and rotated array is an array that is sorted in ascending or descending order and then rotated either left or right by a specific number of elements. There should exist exactly one pivot point around which the array is rotated. The array can be said to be split into two halves and each half is a sorted array. For example: {5, 6, 7, 1, 2, 3} is a sorted and rotated array and {5, 6, 7, 8, 2, 5, 4, 5} is not a sorted and rotated array. In this article, our task is to check if the ...
Read MoreWhat do single quotes do in C++ when used on multiple characters?
Single quotes in C++ are used to denote characters, not strings. When you use single quotes around multiple characters or strings, C++ compiler will treat it as a multi-character literal, which will be stored as an integer value, representing the combined ASCII values of those characters. In this article, we will learn all about single quotes in C++ and how they behave when used with multiple characters. Single Quotes in C++ In C++, single quotes are used to represent a single character. For example, 'a' is a character literal representing the english alphabet 'a'. For each character, C++ assigns a ...
Read MoreWhy does std::getline() skip input after a formatted extraction?
When using std::getline after a formatted extraction (like std::cin >>), you might see an unexpected behavior, where std::getline is skipping the next input line. In this article, we will understand why this happens and how to handle it. Getline skipping input after formatted extraction The code below shows how getline() is skipping input after a formatted extraction: #include #include using namespace std; int main() { string name; string city; cin
Read MoreHow to convert an enum type variable to a string in C++?
Enum is a user-defined datatype in C++ that is used to assign names to integer values. For example, you can use an enum to represent the days of the week from 0 to 6, where 0 represents Sunday, 1 represents Monday, and so on. When you try to access a value of an enum, it will only return an integer value. In this article, we will learn how to convert an enum type variable to a string type variable in C++, so that we can easily display the enum value as a string. Example of Enum: enum color ...
Read Morelldiv() function in C++ STL
The lldiv() function is used to perform division operation on long long integers and return both quotient and remainder. In this article, we will learn how to use the lldiv() function from the Standard Template Library (STL) in C++. What is lldiv()? The lldiv() is a in-built function in C++ that is used to divide one long long integer by another and return the result as a structure that contains both the quotient and remainder. This function is useful when both values are needed after a division operation. The return type of this function is a structure called lldiv_t, ...
Read MoreJava program to check the birthday and print happy birthday message
In this article, we will understand how to check the birthday and print Happy Birthday message. Checking the birthday is achieved by comparing the present day and the given birthday. Problem Statement Write a program that checks if today's date matches a predefined birthday date. If the dates match, the program should print a "Happy Birthday" message otherwise, it should indicate that today is not the birthday. Below is a demonstration of the same − Input Birthday Date: 15 July Output Today’s Date is 20-12-2021 Today is not my birthday Different ways to check the birthday ...
Read MoreHow to implement the Fibonacci series in JShell in Java 9?
In this article, we will learn to implement the Fibonacci series in JShell in Java 9. First, we will learn how the Fibonacci series works, then learn two approaches(iterative and recursive) to implement this sequence in the JShell environment. JShell JShell is a Java shell tool introduced in Java 9 that allows us to execute Java code and print the result immediately. It is a REPL (Read-Evaluate-Print-Loop) tool that runs from the command-line prompt. What is a Fibonacci Series? A number is said to be in the Fibonacci series if each subsequent number is the sum of the previous two ...
Read MoreJava Program to Create Pyramid and Pattern
In this article, we will learn to create pyramid patterns using Java. It will help us to understand how loops work. for loop while loop Java program to create pyramid patterns We are going to print the following pyramid patterns: Half Star Pyramid Inverted Half Star Pyramid Star Pyramid Inverted Star Pyramid Numeric Pyramid Pattern 1: Half Star Pyramid We will initialize the row to 5 and a loop runs from i-1 to i
Read MoreStringize and Token-pasting operator in C
In this article we will see what are the Stringize operator and Token Pasting operator in C. The stringize operator (#) and the token pasting operator (##) are preprocessor operators used within macros for text manipulation. It sends commands to compiler to convert a token into string. Stringize Operator (#) The stringize operator (#) is a preprocessor operator that converts the micros parameter into a string literal. The preprocessor encloses the actual argument passed to the macro in double quotes, effectively convert it into a string. Syntax Following is the syntax of Stringize Operator: #define MACRO_NAME(arg) #arg ExampleIn ...
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