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...
Floor of a number
CONCEPTS USED: Searching DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a sorted array A and a number x. find the largest value in the array that is less than or equal...
Factorial Zeros
CONCEPTS USED: Binary Search, Mathematics DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a number N, your task is to find the count of all such numbers that have N trailing zeros...
Get the Sun Light
CONCEPTS USED: Searching DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given an array A of unique heights of buildings. The sun is facing buildings from left to right, print the number of...
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...
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...
First Capital Using Recursion
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Easy PROBLEM STATEMENT(SIMPLIFIED): Given a String T, find the 1st occurrence of the capital (uppercase) alphabet. Print its index if present, else -1. See original...
Mike and Exam
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Medium PROBLEM STATEMENT(SIMPLIFIED): Given an array containing N elements and an integer K, find the number of ways to calculate the value of K using...
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:...
N Digit Sum
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given a digit N and an integer Sum, print all the N-digit integers whose digit sum is equal to the given Sum....
N Digit Sum Even Odd
CONCEPTS USED: Recursion DIFFICULTY LEVEL: Hard PROBLEM STATEMENT(SIMPLIFIED): Given an integer N, print all N-digit numbers with sum of digits at Even index equal to sum of digits at Odd...