Plant Trees, Save LifeThere are n students in a school. Some of them are friends with each other. You want to make the sch...
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Traveling Policy of AjobdeshIn Ajobdesh, there are multiple cities and one of them is considered as the capital city. Obviously,...
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Fortis Fortuna AdiuvatYour very close friend, John, also known as the Baba Yaga, is often on various missions to complete ...
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Identify The LevelAmin and Belal are two friends. Both have good knowledge about graph and tree in data structure part...
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How Many Ways?Regular problem solvers starts their journey by solving ad hoc and number theory. After getting the ...
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COVID-19 OutbreakCOVID-19 outbreak in Atlantis is so bad that the government is forced to lock down the whole country...
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Sofdor Ali's Black and White TreeSofdor Ali loves Computer Science. He prefers hexadecimal number system to decimals, just because it...
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Chow, MoMo, the jumper has found an extraordinary tree in the woods. He absolutely loves it. He already has ...
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Kingdom of CodeKingdom CODE is the most peaceful place in the universe. King NOVOSH and Queen ALMIDA is ruling this...
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Circuit BreakerIn your free time, you like to design various electrical circuits to give a hard time to your local ...
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Spanning TreeThere are N nodes in a tree. You can start from any node of that tree and you have to come back to t...
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Road Minister TechboyTechboy is appointed as the minister of roads and highway in his country Better-Not-Name-It. Now he ... |
Scarlet SpeedsterThe scarlet speedster of Central City, popularly known as the Flash is fighting an epic battle again...
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Birthday GiftsToday is Luke’s birthday. Mr. Phil Dunphy (Luke’s father) has thrown a birthday party for him and de...
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Yet Another XOR ProblemGiven a rooted tree with N nodes where each node has a value, find a pair of nodes (u, v) so that u ...
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Scary TreeRecently Alex has been learning about “Tree” data structure. While he was learning, a question popp...
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Flow on TreeMr. Kaboom has recently learned about maximum flow. Now his friend Mr. Taboom gave him this problem....
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Kingdom - Great Roads of DestinyShin wants to be the “Great General of the Heaven”. It is his dream. But becoming a “Great General o...
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Bad XOR 2 (Hard)So after successfully becoming many people’s nightmare, XOR has struck again, this time to haunt you...
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Act of Random Kindness (Hard)Sammy and Meera liked adventures a lot. Once in a while they used to set out adventures. This time t...
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Flyover in TwinlandRio has become the president of Twinland. Now he wants to develop his country to fulfill his promise...
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Ghosh vs DattaAbout two hundred years ago, a serious dispute evoked between the two neighboring colonies of Khulna...
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Prime AvoiderMr. X is a friend of Hafiz bhai. Mr. X loves to play with numbers in his leisure but he hates prime ...
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Darth Vader and 3PO on a Tree!Did you watch Star Wars yet? No? You should in your free time. Now back to Darth Vader and 3PO. Dar... |
Keep MovingBalurmath is a city which has N interesting tourist spots, which are connected between themselves by... |
Village Fair 2There are N houses in a village far away from here. They are numbered from 1 to N. For this problem ...
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War in the Wizarding WorldThere is a deadly war going on between two countries (Bitland and Byteland) in the wizarding world. ...
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A Boring GameAlice and Bob are playing a game with a tree with n nodes. Alice always plays first, and the two pla... |
Gold MinesThe city of gridland is a grid with n rows and m columns. The city can be divided into n*m cells. A ...
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Haunting of HerobrineHerobrine’s horror stories are known by many, but only a few dares to speak that name out loud, for ...
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Christmas TreeProfessor Rio has an amazing Christmas tree. Unlike other trees, this Christmas tree has some specia...
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Reverse The MagicYou are probably familiar with the technique of representing a Tree as an array of integers using Eu...
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uDebug