Weekly Challenges

WC 0.0 Practice Test

Find sum of first 'n' natural numbers. Give th...


Success Rate: 29/40, Difficulty: 10%


WC 7.1 Expected Number of Chocolates

You have a bag with n different types of chocol...


Success Rate: 4/9, Difficulty: 60%


WC 7.2 Find squares

Find the number of distinct integer solutions for ...


Success Rate: 4/30, Difficulty: 60%


WC 7.3 Pawn Shop

You are interested in inspecting a collection of i...


Success Rate: 2/15, Difficulty: 70%


WC 6.1 A Special Number

I want a list of special numbers between a given r...


Success Rate: 10/62, Difficulty: 40%


WC 6.2 Hard Disks

Ravi has N hard disks. Each disk contains a of ...


Success Rate: 4/14, Difficulty: 50%


WC 6.3 Prime LCM

Your problem is simple. Find the LCM of all prime ...


Success Rate: 4/17, Difficulty: 60%


WC 5.1 Palindrome Probability

What is the probability that a randomly drawn n...


Success Rate: 11/19, Difficulty: 20%


WC 5.2 Sarah and string

Sarah loves palindrome strings,she needs you to fi...


Success Rate: 8/12, Difficulty: 60%


WC 5.3 Marble Game

There are N marbles lying on a table. There are...


Success Rate: 7/16, Difficulty: 60%


WC 4.1 - Intersecting Area Of Overlapping Rectangles

You need to find the overlapping area of the two g...


Success Rate: 10/13, Difficulty: 40%


WC 4.2 - Are you Divisible?

You are given an integer(could be upto 100 digits)...


Success Rate: 3/17, Difficulty: 60%, Hint available


WC 4.3 Game Of Thrones

To settle the fight for the Iron Throne, Tyrion co...


Success Rate: 3/8, Difficulty: 75%, Hint available


WC 3.1 Sumo Wrestling

John is conducting a sumo wrestling competition...


Success Rate: 14/32, Difficulty: 20%, Hint available


WC 3.2 The Queen Puzzle

Bhavna miss gives Sonali an interesting task. ...


Success Rate: 9/42, Difficulty: 70%, Hint available


WC 3.3 The Obam Farm

Zhang is a obam farmer. Obam is an exotic plant fo...


Success Rate: 3/37, Difficulty: 75%, Hint available


WC 2.1 Jumping on a Keyboard

You are given a linear keyboard i.e. a keyboard in...


Success Rate: 15/23, Difficulty: 15%, Hint available


WC 2.2 Coin Game

You and your friend are playing an interesting gam...


Success Rate: 10/25, Difficulty: 50%, Hint available


WC 2.3 Bus Stop Queue

Its Vacation Time and most of the people prefer...


Success Rate: 12/23, Difficulty: 60%, Hint available


WC 1.1 Cipher

You are supposed to write a program which will enc...


Success Rate: 21/60, Difficulty: 15%, Hint available


WC 1.2 - Coloured Points

Sally has a list of confusing sentences. She wants...


Success Rate: 15/161, Difficulty: 50%, Hint available


WC 1.3 Counting Tiles

Infinite number of tiles of length 1, 2...


Success Rate: 2/13, Difficulty: 80%, Hint available


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