Light in night
CONCEPTS USED: Sorting DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array A containing N bulbs placed on the road of length L, these bulbs can be placed at any point...
Write a program to print roll no and names of 10 students using array
PROGRAM STATEMENT: Given N seats, where English paper students are evenly placed (0,2,4,...) and Hindi paper students are oddly placed (1,3,5,...). Print the roll number of English paper students. See...
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...
Find the Leader
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
Given an array of N elements, print the total number of sub-arrays whose sum value is greater than or equal to K. Understand with the Example: Input : N =...
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
CONCEPTS USED: Arrays DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an array A of N elements, your task is to print all those indexes that have values greater than its left...
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...
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...
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...
Pairs
CONCEPTS USED: Hashing DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given M pairs of integers, where each integer is between 1 and N inclusive. Check if there exists two integers x and...
Saitama’s Punch
CONCEPTS USED: Basic Mathematics DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array A which contains the sorted time points at which a hero named Saitama punches and paralyzes his enemy...
Benchmates
CONCEPTS USED: Efficient Array Search DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given marks of N students sitting on a bench and a value of K, print the index of the student...
Sliding Window
CONCEPTS USED: Sliding Window Technique DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array A, we need to find two sub-arrays with specific lengths L and R such that sum of...