fsshakkhor

Bob had N isolated nodes. He decided to connect the nodes by creating new edges and make a tree. So ...

• BinarySearch
• Hard
• 11/13 Solutions
• 38 Submissions

A perfect binary tree is a binary tree in which all interior nodes have two children and all leaves ...

• HeavyLightDecomposition
• Hard
• 4/6 Solutions
• 45 Submissions

Today is Luke's birthday. Mr. Phil Dunphy (Luke's father) has thrown a birthday party for him and de...

• Flow, Greedy
• Hard
• 5/27 Solutions
• 82 Submissions

Biswa has started Borhani (kind of a soft drink) business recently and made it the new sexy in no ti...

• Hard
• 25/43 Solutions
• 151 Submissions

It's Christmas time! It's the time when Santa brings gift for the children. This year Santa has KKK ...

• InclusionExclusion
• Moderate
• 10/10 Solutions
• 33 Submissions

You are given a tree containing N vertices. The vertices are numbered from 1 to N. A tree with N ver...

• DataStructure, HeavyLightDecomposition
• Hard
• 5/7 Solutions
• 47 Submissions

There is a rectangular lake with N rows and M columns and you are standing on a stone in the top lef...

• Hard
• 23/27 Solutions
• 72 Submissions

Alex is participating in a game show. Mr. Phil is the host of the game. Alex is provided with an arr...

• Combinatorics, NumberTheory, Probability
• Moderate
• 2/2 Solutions
• 2 Submissions

Mary is an intellectually gifted 7-year-old girl. On her first day at school, she impressed her math...

• Hard
• 11/26 Solutions
• 130 Submissions

Shikamaru is the most brilliant student of his class. He is very good at Mathematics. Mr. Asuma is t...

• Hashing, MOSAlgorithm, NumberTheory
• Hard
• 56/120 Solutions
• 626 Submissions

You are given two connected graphs G1G_1G1​ and G2G_2G2​. Both of the graphs have NNN vertices and N...

• Hashing, KnuthMorrisPratt
• Hard
• 14/33 Solutions
• 113 Submissions

Sasuke is a 12-year old ninja who is very much interested in learning Ninjutsu (A tactic used by nin...

• SegmentTree
• Hard
• 128/210 Solutions
• 1019 Submissions

You have got a 6 sided dice. In a single roll, it may show any integers from 1 to 6. You are going t...

• Math
• Easy
• 233/239 Solutions
• 294 Submissions

You have an array of size N which contains positive integers. You can apply the following operation ...

• DP
• Hard
• 7/19 Solutions
• 42 Submissions

You are given a pyramid with a polygonal base. Can you calculate the volume and surface area of the ...

• Moderate
• 28/30 Solutions
• 60 Submissions

Hello , Programmers. There is one thing that I don't like about competitive problem solving, which i...

• Math
• Moderate
• 100/133 Solutions
• 376 Submissions

You are given a tree containing N vertices. The vertices are numbered from 1 to N. A tree with N ver...

• DataStructure, LowestCommonAncestor
• Moderate
• 10/13 Solutions
• 66 Submissions

Euler's totient function counts the number of positive integers up to a given integer N that are rel...

• PollardRho, RabinMiller
• Hard
• 8/20 Solutions
• 85 Submissions

It is believed that the hidden island of TreasureLand has many unsolved mysteries and undiscovered t...

• Greedy, String
• Hard
• 25/124 Solutions
• 354 Submissions

Today we will learn about a special type of graph called Wheel Graph. In the mathematical discipline...

• Math
• Moderate
• 105/114 Solutions
• 174 Submissions