Magical Ropes
CONCEPTS USED: Binary Search DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an array H of lengths of Magical Ropes and array R of the rate by which rope increases daily, print...
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...
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...
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...
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...
Multiplication of Digits
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an integer N, recursively find the multiplication of digits of N modulus with 10^9+7. See original problem statement here For Example:...
Sliding Window
Wealthy Father 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...