Counting Friends Johnny uses a social network called Supernova. Unlike the other social networks, Supernova does not ... |
Expandable ListView Minas is working on his new language. He want to add a feature call expandable listview. Here he exp... |
So Long As all people know ICPC can be very dull sometimes for people other than contestants. Jodu, Modu, an... |
Palindrome Query I You are given a string of length L. You have Q queries. In each query, you will be asked to either u... |
Big Tang Theory Shell Don (Shelly in short) is a theoretical physicist who is claimed to be highly intelligent with ... |
Rio and Inversion One day Rio was returning home from his university and unfortunately lost his phone on the way. He a... |
Count the Chaos Imagine, you have an array of integers of size N. At each index of this array is a unique integer fr... |
Hamming Distance Hamming distance between two binary strings of equal length is the number of mismatches between ever... |
Social Distancing The country of KhoaNali is structured as a giant road with N buildings on both sides, the northern b... |
Subarray Sum You are given an array having N integers. You have to select at most K positions in the array and re... |
Bored?? "Avoid touching your face, particularly your eyes, nose or mouth to prevent the virus from entering ... |
Memes vs. Social Media In this era of modern technology social media is the most powerful weapon and the viral issue is the... |
GCD and Sum Congratulations! You’ve been hired in “Buggy Software Ltd.” And you’ve been already given your first... |
Sofdor Ali and Bracket Sequence Sofdor Ali has invented a new game. He asked his assistant Jong Bahadur ( who happens to be a monkey... |
Explosion There is a house named Larcana. It is a very weird house. There are exactly N rooms in total and bet... |
Static Tree You are given a tree containing N vertices. The vertices are numbered from 1 to N. A tree with N ver... |
Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |
Cut the Rope Fahim is a rope seller. He has a special tool for cutting ropes. But recently this tool is behaving ... |
Composite Facts Let's define two functions F and S: F(n) = 1 + n! S(n,m) = Sum of first m non-prime integers which ... |
Byang and War Tactics Byang is learning about War Tactics from Raat, a famous martial arts master, who has successfully tr... |
Data Structure The operations that are performed in a data structure can be categorized into two types: query and u... |
Device ID A device ID is a distinct number associated with a smartphone or similar handheld device. Every smar... |
Perseus and The New Challenge The life of princess Andromeda, the daughter of King Cepheus and Queen Cassiopeia of Ados, is in dan... |
Another Query on String You are given a string S (of length n) consisting of alphabets only. You need to perform m queries o... |
Hide and Seek You know how to play hide-and-seek, right? In a group of kids, one of them is selected to be the see... |