Graph Coding Problems

Explore nodes and edges algorithms

169
Total Problems
3
Easy
79
Medium
85
Hard
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Master DSA Topics - January, 2026

Practice problems across 75+ categories

Graph Coding Problems

Practice problems frequently asked at Graph 169 problems | 3 Easy | 79 Medium | 85 Hard

# Problem Difficulty Topics
31 Design Excel Sum Formula Unknown
ArrayHash TableString
32 Design Graph With Shortest Path Calculator Hard
GraphDesignHeap (Priority Queue)
33 Detonate the Maximum Bombs Medium
ArrayMathDepth-First Search
34 Digit Operations to Make Two Integers Equal Medium
MathGraphHeap (Priority Queue)
35 Distance to a Cycle in Undirected Graph Hard
Depth-First SearchBreadth-First SearchUnion Find
36 Divide Nodes Into the Maximum Number of Groups Hard
Depth-First SearchBreadth-First SearchUnion Find
37 Evaluate Division Medium
ArrayStringDepth-First Search
38 Find a Safe Walk Through a Grid Medium
ArrayBreadth-First SearchGraph
39 Find All People With Secret Hard
Depth-First SearchBreadth-First SearchUnion Find
40 Find All Possible Recipes from Given Supplies Medium
ArrayHash TableString
41 Find Center of Star Graph Easy
Graph
42 Find Champion II Medium
Graph
43 Find Closest Node to Given Two Nodes Medium
Depth-First SearchGraph
44 Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree Hard
Union FindGraphSorting
45 Find Edges in Shortest Paths Hard
Depth-First SearchBreadth-First SearchGraph
Showing 31-45 of 169
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public class MyFirstJavaProgram { Edit & Run

   /* This is my first java program.
    * This will print 'Hello, World!' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello, World!"); // prints
   }
}

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