Graph Traversal Problems

COVID-19 outbreak in Atlantis is so bad that the government is forced to lock down the whole country...

• By Peregrine_Falcon
• BFS, DFS, DP
• Hard
• 108/133 Solutions
• 377 Submissions

Shin wants to be the “Great General of the Heaven”. It is his dream. But becoming a “Great General o...

• BridgeTree, DFS, DisjointSets, Graph, LCA
• Hard
• 14/15 Solutions
• 79 Submissions

Did you watch Star Wars yet? No? You should in your free time. Now back to Darth Vader and 3PO. Dart...

• By himuhasib
• BFS, DFS, Graph, Greedy, Sorting
• Moderate
• 31/41 Solutions
• 96 Submissions

So after successfully becoming many people's nightmare, XOR has struck again, this time to haunt you...

• By nfssdq
• DFS, Graph
• Hard
• 8/19 Solutions
• 63 Submissions

Herobrine's horror stories are known by many, but only a few dares to speak that name out loud, for ...

• By hjr265
• BFS, DFS
• Moderate
• 8/10 Solutions
• 33 Submissions

Sofdor Ali loves Computer Science. He prefers hexadecimal number system to decimals, just because it...

• By TarifEzaz
• DFS, Graph
• Moderate
• 58/71 Solutions
• 168 Submissions

There is a house named Larcana. It is a very weird house .There are exactly N rooms in total and bet...

• BFS, DFS, Graph, Probability
• Moderate
• 9/11 Solutions
• 30 Submissions

Kingdom CODE is the most peaceful place in the universe. King NOVOSH and Queen ALMIDA is ruling this...

• DFS, Graph, ShortestPath
• Hard
• 3/4 Solutions
• 22 Submissions

There are n students in a school. Some of them are friends with each other. You want to make the sch...

• By dhruba_1603088
• BFS, DFS, DisjointSets
• Moderate
• 149/242 Solutions
• 651 Submissions

Balurmath is a city which has N interesting tourist spots, which are connected between themselves by...

• By sn23581
• DFS, Game, Graph
• Hard
• 77/119 Solutions
• 764 Submissions

If Stephen Hawking was right, then there is a universe where Bob Ross is a student of Tomato Yoshi. ...

• By hjr265
• BFS, DFS, Implementation
• Hard
• 15/23 Solutions
• 116 Submissions

There are N houses in a village far away from here. They are numbered from 1 to N. For this problem ...

• By nfssdq
• DFS, DataStructure, Graph
• Hard
• 17/31 Solutions
• 248 Submissions

Two teams of robots, Team A and Team B, are racing in a 2D grid. There will be a total of 6 rounds. ...

• By RasheedAbid
• BFS, Implementation
• Moderate
• 4/5 Solutions
• 33 Submissions

In your free time, you like to design various electrical circuits to give a hard time to your local ...

• By d1xlord
• DFS, Graph
• Moderate
• 28/42 Solutions
• 375 Submissions

You have probably heard of the famous board game, Monopoly. According to Wikipedia, in this game, pl...

• By ishtupeed
• BFS, Graph
• Hard
• 3/4 Solutions
• 19 Submissions

In Ajobdesh, there are multiple cities and one of them is considered as the capital city. Obviously,...

• By biqarboy
• DFS, Graph, ShortestPath
• Hard
• 105/144 Solutions
• 656 Submissions

The scarlet speedster of Central City, popularly known as the Flash is fighting an epic battle again...

• By SMAN2901
• BFS, ShortestPath
• Moderate
• 60/73 Solutions
• 215 Submissions

There is a deadly war going on between two countries (Bitland and Byteland) in the wizarding world. ...

• DFS, Flow, Graph
• Moderate
• 17/23 Solutions
• 160 Submissions

Milad likes trees so much. He has a rooted tree with nnn vertices each of which has some non-negativ...

• By Muhimin_Osim
• BFS, DFS, DP, Graph
• Hard
• 23/27 Solutions
• 81 Submissions

Alice and Bob are playing a game with a tree with n nodes. Alice always plays first, and the two pla...

• By nfssdq
• DFS, Game, Graph
• Moderate
• 87/123 Solutions
• 330 Submissions

Amin and Belal are two friends. Both have good knowledge about graph and tree in data structure part...

• By subhashis_cse
• BFS, DFS, Implementation
• Moderate
• 132/137 Solutions
• 223 Submissions

The city of gridland is a grid with n rows and m columns. The city can be divided into n*m cells. A ...

• DFS, Graph
• Moderate
• 48/62 Solutions
• 247 Submissions

You know how to play hide-and-seek, right? In a group of kids, one of them is selected to be the see...

• By peppermint
• BFS, DFS, DataStructure, Tree
• Moderate
• 19/22 Solutions
• 60 Submissions

Techboy is appointed as the minister of roads and highway in his country Better-Not-Name-It. Now he ...

• By hasan169
• DFS, Graph, Greedy
• Moderate
• 43/49 Solutions
• 144 Submissions

Tomorrow is a very special day for Taofiq. He is participating in an intra school quiz contest. As h...

• By shajia
• BFS
• Moderate
• 88/98 Solutions
• 232 Submissions