Battle of Brains Do you remember Alice and Bob? They are fighting for glory in a battle game they’ve just bought. The... |
Painting a Red X The ground floor of AUST has been renovated. It now looks like a square with N×N tiles. The tiles ar... |
Mettaton Attacks This is an interactive problem. Mettaton, the star of underworld TV show attacks you again with his ... |
Long Walk One day Rupun the Rabit had a weird idea to go on a walk. She wants to go on a walk in one direction... |
Dreamrise You are building a new game called Dreamrise. The game is played by 2 teams and each match usually l... |
Survivor Sum Suppose you have a multiset of numbers {a1,a2,…,ak}. Suppose x is the smallest number and y is th... |
Square Maze Sajib is a criminal. Respected judge has sentenced him to prison for 10 years! He is now spending hi... |
I Dont Like Polynomial Given a k degree polynomial P(x)=∑i=0kaixi (0≤ai≤7) and f(n)=“number of such polynomial so that ... |
The Errors The government wants to provide relief to the flood-affected people. So, it set a committee. The com... |
Cat Everywhere Cats everywhere! I came back home after being far away for a long time. Two of my sisters are very f... |
Fibonacci Between Given two numbers L and R, you must print all the Fibonacci numbers between L and R (inclusive). Alt... |
Black or White Imagine an infinite chess board. The cell on the bottom-left most corner is labelled (0,0). The cell... |
Knapsack You have a backpack that can carry a maximum weight of C. You will also be given a set of items, the... |
Closest Pair You will be given N pair of coordinates on a 2D space. You will determine distance between the close... |
In Brackets Given a line of text, you have to extract the bit of text enclosed within a pair of brackets. There ... |
Hello Regexp Write a regular expression that will match texts like “Hello {X}” and only output “{X}” (w/o quotes)... |
Take It Easy This is a very simple problem. You will be given a single integer n. You have to print four numbers ... |
Batman vs. Ghul I think you all know the name of Gotham city. Our hero Batman lives there. But a demon called Ra's a...
Moderate
15/38/122 |
Special Friends of Two Let's consider two positive numbers X and Y to be friends if - X and Y have same length and differ ...
Moderate
4/10/42 |
Counter Attack Alice and Bob played Nim for a long time and now they are pissed off after exploring the property of...
Moderate
5/22/57 |
Bridge Puzzle There's a famous bridge puzzle, where you have four persons, each with a unique time required to cro... |
Coin Collection Neema and Mouri loves to collect coins. When they get bored, they bring out all of their coins. Usua... |
Coin Collection (Easy) Neema and Mouri loves to collect coins. When they get bored, they bring out all of their coins. Usua...
Easy
48/73/254 |
War of Programmers Jackal and Bari have started solving problems in Online Judges. And in order to do well, they know t...
Very Easy
86/104/209 |
Hotel Royal Datta, the great politician, loves parties. He takes all the big shots with him to the most famous r...
Moderate
47/61/149 |