List: DSA Problem All In one | Curated by Gaurav Sah

Oct 20, 2024

27 stories

DSA Problem All In one
Gaurav Sah
Rotate an Array by One Position to the Left in C++ (Efficient Solution)Learn how to rotate an array by one position to the left using C++. This efficient solution shifts elements with minimal spa
Oct 20, 2024
Oct 20, 2024
Gaurav Sah
C++ Solution to Remove Duplicates from a Sorted Array in O(n)Learn how to remove duplicates from a sorted array using the two-pointer technique in C++. This efficient solution works in O(n) time.
Oct 20, 2024
Oct 20, 2024
Gaurav Sah
Efficient C++ Solution to Find the Second Largest Element in an ArrayLearn how to find the second largest element in an unsorted array using C++. This solution handles edge cases, with optimal time and space.
Oct 20, 2024
Oct 20, 2024
Gaurav Sah
Efficient C++ Solution to Find the Largest Element in an ArrayDiscover how to find the largest element in an unsorted array using a linear time approach in C++.
Oct 20, 2024
Oct 20, 2024
Gaurav Sah
Selection Sort Algorithm in C++: Explained with ExamplesLearn how to implement the Selection Sort algorithm in C++ with examples, time and space complexity, and edge case handling.
Sep 25, 2024
Sep 25, 2024
Gaurav Sah
Selection Sort Algorithm in C++: Explanation, Code, and Time ComplexitySelection Sort is a simple sorting algorithm that divides the input list into two parts: the sorted part at the front and the unsorted…
Sep 25, 2024
Sep 25, 2024
Gaurav Sah
Frequencies of Limited Range Array ElementsYou are given an array arr[] containing positive integers. These integers can be from 1 to P, and some numbers may be repeated or absent…
Sep 24, 2024
Sep 24, 2024
Gaurav Sah
Introduction to map and unordered_map in C++In C++, both map and unordered_map are used to store key-value pairs. However, they have some key differences in terms of time complexity…
Sep 24, 2024
Sep 24, 2024
Gaurav Sah
Problem: Character Frequency Count Using HashingThis C++ program computes the frequency of characters in a given string and allows the user to query the occurrence of any specific…
Sep 23, 2024
Sep 23, 2024
Gaurav Sah
Problem: Count the Frequency of Numbers in an ArrayThis C++ program takes an array of integers from the user, precomputes the frequency of each element using a hash array, and then allows…
Sep 23, 2024
Sep 23, 2024
Gaurav Sah
Fibonacci Sequence in C++ Using RecursionLearn how to calculate the nth Fibonacci number using recursion in C++. This post covers the recursive approach with base cases.
Sep 21, 2024
Sep 21, 2024
Gaurav Sah
Check Palindrome String in C++ — Case-Insensitive, Ignoring Non-Alphanumeric CharactersLearn how to check if a string is a palindrome in C++.
Sep 21, 2024
Sep 21, 2024
Gaurav Sah
Reverse an Array in C++ — Efficient Array Reversal AlgorithmLearn how to reverse an array in C++ using a simple algorithm. This post covers reversing an array with code, edge cases.
Sep 20, 2024
Sep 20, 2024
Gaurav Sah
Check if a Number is a Factorial of Any IntegerLearn how to check if a number is a factorial of any integer in C++. Check if a Number is a Factorial.
Sep 20, 2024
Sep 20, 2024
Gaurav Sah
Generate Factorial Numbers Less Than or Equal to N Using C++Learn how to generate factorial numbers less than or equal to N using C++.
Sep 20, 2024
Sep 20, 2024
Gaurav Sah
Sum of Cubes of First N Natural Numbers Using Recursion in C++Learn how to find the sum of cubes of the first N natural numbers using recursion in C++. This post explains the recursive approach.
Sep 19, 2024
Sep 19, 2024
#11
Gaurav Sah
Recursive Function to Print Numbers from N to 1Learn how to print numbers from N to 1 using recursion in C++. This post explains the recursive approach with code, edge cases.
Sep 19, 2024
Sep 19, 2024
#10
Gaurav Sah
Recursive Function to Print “GFG” N TimesLearn how to print “GFG” N times using recursion in C++. This post explains the recursive approach with code, edge cases, and time…
Sep 19, 2024
Sep 19, 2024
#09
Gaurav Sah
Recursive Solution to Print Numbers from 1 to NLearn how to print numbers from 1 to N using recursion in C++.
Sep 19, 2024
Sep 19, 2024
#08
Gaurav Sah
Solution to Calculate LCM and GCD Using Euclidean AlgorithmLearn how to calculate both the LCM and GCD of two numbers in C++ using the Euclidean algorithm.
Sep 18, 2024
Sep 18, 2024

DSA Problem All In one

Rotate an Array by One Position to the Left in C++ (Efficient Solution)

Learn how to rotate an array by one position to the left using C++. This efficient solution shifts elements with minimal spa

C++ Solution to Remove Duplicates from a Sorted Array in O(n)

Learn how to remove duplicates from a sorted array using the two-pointer technique in C++. This efficient solution works in O(n) time.

Efficient C++ Solution to Find the Second Largest Element in an Array

Learn how to find the second largest element in an unsorted array using C++. This solution handles edge cases, with optimal time and space.

Efficient C++ Solution to Find the Largest Element in an Array

Discover how to find the largest element in an unsorted array using a linear time approach in C++.

Selection Sort Algorithm in C++: Explained with Examples

Learn how to implement the Selection Sort algorithm in C++ with examples, time and space complexity, and edge case handling.

Selection Sort Algorithm in C++: Explanation, Code, and Time Complexity

Selection Sort is a simple sorting algorithm that divides the input list into two parts: the sorted part at the front and the unsorted…

Frequencies of Limited Range Array Elements

You are given an array arr[] containing positive integers. These integers can be from 1 to P, and some numbers may be repeated or absent…

Introduction to map and unordered_map in C++

In C++, both map and unordered_map are used to store key-value pairs. However, they have some key differences in terms of time complexity…

Problem: Character Frequency Count Using Hashing

This C++ program computes the frequency of characters in a given string and allows the user to query the occurrence of any specific…

Problem: Count the Frequency of Numbers in an Array

This C++ program takes an array of integers from the user, precomputes the frequency of each element using a hash array, and then allows…

Fibonacci Sequence in C++ Using Recursion

Learn how to calculate the nth Fibonacci number using recursion in C++. This post covers the recursive approach with base cases.

Check Palindrome String in C++ — Case-Insensitive, Ignoring Non-Alphanumeric Characters

Learn how to check if a string is a palindrome in C++.

Reverse an Array in C++ — Efficient Array Reversal Algorithm

Learn how to reverse an array in C++ using a simple algorithm. This post covers reversing an array with code, edge cases.

Check if a Number is a Factorial of Any Integer

Learn how to check if a number is a factorial of any integer in C++. Check if a Number is a Factorial.

Generate Factorial Numbers Less Than or Equal to N Using C++

Learn how to generate factorial numbers less than or equal to N using C++.

Sum of Cubes of First N Natural Numbers Using Recursion in C++

Learn how to find the sum of cubes of the first N natural numbers using recursion in C++. This post explains the recursive approach.

Recursive Function to Print Numbers from N to 1

Learn how to print numbers from N to 1 using recursion in C++. This post explains the recursive approach with code, edge cases.

Recursive Function to Print “GFG” N Times

Learn how to print “GFG” N times using recursion in C++. This post explains the recursive approach with code, edge cases, and time…

Recursive Solution to Print Numbers from 1 to N

Learn how to print numbers from 1 to N using recursion in C++.

Solution to Calculate LCM and GCD Using Euclidean Algorithm

Learn how to calculate both the LCM and GCD of two numbers in C++ using the Euclidean algorithm.

Gaurav Sah

Java

DSA Problem All In one

JavaScript