XOR Master Imam has been participating in online programming contests for years. His goal is to become a "Maste... |
Who Gets the Money!? Who doesn’t get happy after getting money in the pockets of clothes before washing them? During this... |
Scary Big Chessboard Our friend Alice got stuck in a big chessboard. The chessboard has N rows and N columns. Some cells ... |
Color The Graph You are given an acyclic, bidirectional graph with N nodes and M edges. The nodes are numbered from ... |
Scholarship Your school is going to start a new scholarship program. To apply for this scholarship you have to w... |
Learning New Algorithms Every Day Shak is a new programmer and he knows nothing about algorithms. He has made a plan and decided to le... |
Magic Square A little boy Towhid is good at mathematics. He solves a lot of mathematical equation regularly. He i... |
Mirror World Imagine a world inside mirror, where everything becomes reverse. Left hand becomes right hand, right... |
Elementary Arithmetic - 2 Long ago, after learning how to add two numbers, Shakib came to know about multiplication. Multiplic... |
Bad Neighbors In the strange neighborhood of Nocu, a lot of people lives pretty happily, or so they think. Like mo... |
Level Up You are playing a game that has 16 levels. You start with level 1 and after gaining a certain amount... |
Bi-Element Subsequence You are participating in a game show. In the final round, the host pulls up a large sequence of posi... |
Spot It! Have you played the game Spot it!? Though there are many ways to play this game, the basic rule is t... |
SUM Equals LCM Given N, print a sequence of N positive integers A1,A2,…,AN that satisfy the following conditions... |
Red and Green Suppose, there is an array of N integers. Each index of the array is either red or green. The first ... |
Freezed Standings Team Depuradores and Team Resolvers represented their university in the ICPC world finals 2021. Depu... |
Game Show Alex is participating in a game show. Mr. Phil is the host of the game. Alex is provided with an arr... |
How Many Ways? Regular problem solvers starts their journey by solving ad hoc and number theory. After getting the ... |
The Matrix In the metaphysical world of the Matrix, different people make their chessboards with their own spec... |
Mina and Raju Everyone know about Mina & Raju. They are siblings as well as good friend. The friend-circle of Mina... |
Counting Matrices Given a natural number N and a prime p, let’s define a special set Zp={0,1,2,…,p−1}. Now count the ... |
Pudding and Coins Pudding is playing a game that has n levels. There are a total of n(n+1)/2 coins spread out among th... |
Meera and Solo Chocolates Meera bought candies from the store. She is now going to distribute those among her N friends. She m... |
String in a Grid 2 Prof. Bari loves to play with string. He is also very skilled in drawing. One day he was drawing a g... |
GCD, Divisor, Count! I like short statements and you should too so here's the statement without further ado You are give... |