Topic Replies Created
EPI forum introduction 3 April 10, 2014
5.17 Sudoku Checker Problem time complexity (Java) 1 August 22, 2019
The idea behind 10.12.2 5 January 27, 2015
17.8.2 - Find largest square square under the skyline 1 August 16, 2019
17.4 variant 2: 3-sum problem 6 November 24, 2017
EPI Python 9.16 Variant 2 February 13, 2019
Score Combinations - Variant-2 1 August 10, 2019
16.1 Tower of Hanoi Variant 2 4 January 6, 2018
Typo in Intersection of Two Sorted Arrays 13.1 Java 1 August 3, 2019
How does n-queens isValid check work? 6 May 15, 2019
Pretty Print Problem 3 August 1, 2019
Group Anagrams Hash Table Insertion Query 1 July 30, 2019
Integer coordinates for Draw the Skyline variant? 1 July 26, 2019
11.7 Find the min and max simultaneously 9 December 14, 2017
6.1 The Dutch National Flag Problem 1 June 20, 2019
5.15 Compute random subset - Alternative solution in python, without extra auxiliary space 1 June 19, 2019
17.5.1 Search for a sequence in 2D array, variant 1 3 January 23, 2018
5.10 Apply permutation - Couldn't understand the logic 3 May 21, 2019
Online Random Sample 1 May 29, 2019
Problem 6.18 (Java version) variant 6: kth element in spiral ordering in O(1) 6 December 14, 2015
5.1. Dutch National Flag - Variant 4 2 May 24, 2019
Knapsack problem - variant - O(C) solution 2 December 6, 2018
Simpler code for random subset problem 1 May 19, 2019
24.2 - First Missing Positive Entry - Weak Test Cases in EPIJudge 1 May 18, 2019
EPI (Python) 9.1 Is tree balanced - Solution is incorrect? 1 May 15, 2019
About a particular test case in problem 15.11 - TEST IF THREE BST NODES ARE TOTALLY ORDERED 1 May 15, 2019
18.4 Variant = Check if graph remains connected if any one edge is removed 1 May 12, 2019
5.1 Dutch National Flag partitioning instructions unclear 1 May 8, 2019
2D arrays: what is "parallel logic"? 1 May 8, 2019
5.17 The Sudoku Check Problem - Alternative solution [Python] 1 May 6, 2019