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## Aman and Math

Concepts Used Strings Difficulty Level Hard Problem Statement (Simplified): Find the maximum answer by evaluating the given string and putting a bracket anywhere in the string. See original problem statement...

## Square Moves

Concepts Used Strings, Hash Table Difficulty Level Hard Problem Statement (Simplified): Find the total number of children standing on each square after 10100 rotations by every individual child. Each child...

## Program to Print Roll No of Students Seated at Even Position

Arrays are the data structures that enables us to store data of similar type under the same variable name. It can be used to store the details of the student...

## Fraction to Float

Concepts Used Strings Difficulty Level Hard Problem Statement (Simplified): Print the decimal output of the fraction of two given numbers and enclose the repeating part in decimal places in brackets....

## Find Maximum

CONCEPTS USED: Arrays DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array A of N positive integers. The task is to find the maximum of j - i such that A[j]...

## Find the Missing

CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array A with N-1 elements, with elements from 1 to N present into it. Find a single missing element....

## Quality Factor

CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a magical container such that whenever :- A Red Stone is added to the ith bag, the quality factor of...

## Rectangular Sweet Box

CONCEPTS USED: Post Min array DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array A with N elements, your task is to divide the array in maximum possible segments such that...

## Unique Array

CONCEPTS USED: Hashing DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an array A with N elements containing all elements from 0 to N-1, your task is to find the maximum length...

## Unique Color Shirt

CONCEPTS USED: Hashing DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an array A with N integers, find the count of unique integers in the array. See original problem statement here For...

CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Print all those elements that have no element greater than them in the right side of the array. Print elements from...

## Find Number of Sub-arrays with sum is greater than or equal to K

Finding the number of subarrays with a sum greater than or equal to a given value K is a common problem in array manipulation. The task involves determining the count...

## Interesting Array

Concepts used: Two Pointers Technique Difficulty level: Medium Problem statement(SIMPLIFIED): Given an array A with N elements arranged in an ascending order, also given a number K. Check if their...

## Greater than Neighbor

In this article, we will be looking at how we can solve the problem Greater than neighbor, in which you are given an Array and you need to print all...

## Greater And Least

CONCEPTS USED: Searching DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a number N, find the smallest number that has same set-of-digits as N and is greater than N. If N is...

## Array Max

CONCEPTS USED: Suffix Sum Arrays DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array of N integers and an integer K, the task is to find the maximum sum taking every...

## Arithmetic Progression

CONCEPTS USED: Hashing, Basic Mathematics DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array of N integers, print the value of all those elements, whose indexes form an increasing Arithmetic Progression...

## Friends Ages

CONCEPTS USED: Hashing DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given N ages of students of a college and some conditions which determine whether A can Friend Request B or not. Determine...

## Substring Start End Same

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a string S, print the count of all contiguous substrings that start and end at the same character. For Example: Input...

## Shubhaluxumy loves Binary Number

CONCEPTS USED: Binary Search DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given two numbers N(number of rows) and I(index of a row), such that given a 0 in the 1st row and...

## Range Even

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a number N, your task is to print all even numbers (>0) from 1 to N using recursion. See original problem...

## Matrix and combination

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given a matrix M*N containing only lowercase english alphabets, your task is to select elements from the first row one by one,...

## Mike and Binary Number

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given a number N, your task is to print all possible permutations of its Binary Representation. NOTE : Print the output in...

## Check Palindrome

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a number N, check whether the number is palindrome or not using recursion. The palindrome number remains the same when its...

## Sum of Sequence

CONCEPTS USED: Collatz conjecture DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a positive number N, write a recursive function and sum all the number until N reaches to 1 after performing...

## Pragya and Gold Medalist

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given two strings S1 and S2, print the count of all their Interleaving Strings. NOTE: Interleaving String is a string that has...

## Print the Pattern

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a number N, print its decreasing sequence (i.e. keep subtracting by 5) till it reaches (<=0) and then print its increasing...

## Min and Max

CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): With a given array of size N, find the largest (maximum) and smallest (minimum) element from the elements. See original problem...

## Array Rotation

CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): With a given array of size N and steps K, we have to print the array after K rotations to the...

## PERMUSEQ

CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a sorted array A containing N distinct elements, your task is to find the Mth permutation of the given array. For...