Topic Replies Created
EPI forum introduction 3 April 10, 2014
@tsunghsienlee Please Post Variants 1 October 17, 2019
EPI Python 13.8 compute the union of intervals 1 October 11, 2019
EPI Java 11.10 Find the Duplicate and Missing Elements differ-bit logic 1 October 6, 2019
EPI Java Judge - Unable to run programs 1 September 30, 2019
Regarding 4.2 swap bits 1 September 29, 2019
15.1 The Towers of Hanoi problem: Variant #2 clarification 2 April 5, 2019
Towers of Hanoi Variant 5 1 September 24, 2019
(Java) 15.9 Variant 5 April 15, 2016
EPIJ 16.11 Pretty printing problem variant 2 2 April 24, 2018
Binary search algorithm issue in Python book 1 September 11, 2019
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