United State of Koanhali Koanhali is a strange country. The govt. of Koanhali maintain the marriages of this country. If you ... |
Exists or Not Exists You will be given some numbers. Then there will contain some queries. In every query there will be g... |
Another String Query Problem This time I'm going to introduce you to a new land, called String Land. In String Land there are N ... |
Kingdom of Equality There is a kingdom called DomKi. There are N cities and N – 1 bidirectional roads in DomKi. The citi... |
Erik: The Candyboy - 2 Now Erik has more candies than he had previously. In fact, he has infinite number of candies, and he... |
Bored?? "Avoid touching your face, particularly your eyes, nose or mouth to prevent the virus from entering ... |
Do You Know Tree ? "Stay at least one metre distance from others.” Corona has affected the World as well as Bangladesh.... |
Yet Another Xinversion The problem statement is simple. You are given a rooted tree (1 is the root) and every node has a co... |
Social Distancing The country of KhoaNali is structured as a giant road with N buildings on both sides, the northern b... |
Hablu's Team This year Hablu wants to participate in ICPC. He studies in “Habagoba University” along with $n$ oth... |
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... |
Donate Our Department We are students of CSE, IU. It is very well known that our departmental instruments are not so good.... |
Not As Hard As It Seems Sakib and Shamim are good friends. As Sakib is a little naughty, every night before exam he disturbs... |
Maximum Meetings I am the boss of my company. I have n employees. The office time of my company starts at 1. Every em... |
Powerful Array You are given an array A of N integers . Now you have to process Q queries in this array. Each query... |
Police Stations Recently the government of country S is going to construct some police stations(possibly zero) in so... |
Matching Brackets You will be given a sequence of opening and closing brackets of different types ((, ), [, ], {, and ... |
Tree Queries You are given a tree of n vertices. Each vertex contains an integer. Vertex 1 is the root of the tre... |
Another Query on String You are given a string S (of length n) consisting of alphabets only. You need to perform m queries o... |
Remember the Name... There's a famous song written by Mike Shinoda, which has these lines: This is 10% luck, 20% skill, ... |
Easy Prime! There are N numbers in an array. You will have Q queries. In each query, you can make 2 operations. ... |
Laser Light A 2D grid consists of a lot of special lights bulbs, which turns on upon the incidence of a laser li... |
City of Atlantis Have you ever heard of The Atlantis City? It’s a Greek mythological city. Its existence doesn’t matt... |
C++ Vector Simulation Array is an important data structure in computer science. It is also very important when it comes fo... |
Battle of Endor After myriad battles and death of million rebel soldiers, it is high time to destroy the imperial ar... |