Formatted Numbers

Read an integer variable and print it in which the digits are separated into groups of three by comm...

Is Anagram

An anagram is a word formed by rearranging the letters of another word. The words “listen” and “sile...

The Hidden Island

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

Is Palindrome

Given a word, print \texttt{Yes} if it is a palindrome, otherwise \texttt{No}. A palindrome is a wor...

Butcher of Vowels

…if I’m to choose between one evil and another, then I prefer not to choose at all. – Geralt (The L...

Better Passwords

Byang is creating an account on Toph. He needs your help to create a strong password. Byang will giv...

Reverse Man

Monu mia is a reverse man! Never heard of reverse man? It means if you ask him to write something in...

#Hashtag

Giving Hashtag in Social Network is very popular now a day. But Poltu is very new in Social Network....

K-String

We will call a string K-String if it consists of K distinct characters. For example, if K is 3 then ...

Convert String Into Palindrome

A palindrome is a word, number, phrase, or other sequence of characters which reads the same backwar...

Rename the Books

Everything is short in the Short Land. People use short words when talking to each other or writing ...

Problem in the Printer

Shamim bought a second-hand printer. However, there was a fault in that printer. The printer is prin...

Passwords

Alice wants to extract some passwords from a random string. A password can have any number of charac...

Remove Duplicates

The problem is so simple. You are given a string and you have to remove all duplicate characters fro...

Konami Code

The Konami code is a sequence of key/button presses that is implemented in many video games to unloc...

Match the Substring

String Matching is an important problem in computer science research and finds applications in data ...

Palindromic Naming Convention

In Strangeland, people name their child in a cute way. I’m sure you already know the way by the prob...

Distinctness

A substring of string S is another string S’ which occurs in string S. For example: S = aaba and one...

Isomorphic Graph

You are given two connected graphs G_1 and G_2. Both of the graphs have N vertices and N number of e...

New Year Couple

The new year 2017 is here. To celebrate the 31st night, Mr Rio has thrown a big party at his house. ...