User Jianmin Chen

5

16

votes

4

answers

2k

views

Leetcode 15. 3 Sum

c# algorithm time-limit-exceeded interview-questions k-sum

Jul 13 '18 at 20:58 200_success 139k

1

12

votes

1

answer

3k

views

Hackerrank Queen's Attack II

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Nov 18 '17 at 4:58 200_success 139k

2

8

votes

2

answers

2k

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Hackerrank - value of friendship (II)

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Sep 30 '17 at 14:20 Mast 11.1k

2

8

votes

3

answers

2k

views

Leetcode 56: Merge Intervals

c# algorithm programming-challenge time-limit-exceeded interval

Jan 24 '17 at 10:44 Community♦ 1

1

7

votes

2

answers

382

views

Find kth largest element in the union of two sorted array (Follow up)

c# programming-challenge array binary-search

Dec 18 '17 at 0:26 Jianmin Chen 2,216

2

7

votes

1

answer

993

views

Hackerrank: Kindergarten Adventures

c# algorithm programming-challenge tree

Jun 6 '17 at 13:20 Der Kommissar 19.6k

4

7

votes

3

answers

1k

views

Leetcode 125. Valid Palindrome (better performance?)

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Mar 10 '17 at 16:11 Community♦ 1

1

6

votes

3

answers

492

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Recursive function challenge

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May 26 at 15:17 dfhwze 13.4k

3

6

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1

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720

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Leetcode 54: Spiral Matrix

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Jan 30 '18 at 21:08 janos 104k

6

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1

answer

706

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Leetcode 17. Letter Combinations of a Phone Number

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Feb 10 '17 at 8:03 Adriano Repetti 10.2k

1

5

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1

answer

3k

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Sudoku solver recursive solution with clear structure

c# algorithm interview-questions sudoku depth-first-search

Dec 18 '18 at 0:42 Guest 1

2

5

votes

1

answer

289

views

Hackerrank - Maximum Disjoint Subtree Product

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Jul 1 '18 at 18:42 Community♦ 1

3

5

votes

2

answers

2k

views

Find the smallest substring that contains some given subset of characters

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Sep 30 '17 at 20:13 200_success 139k

1

5

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2

answers

12k

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LINQ and string.Split do it yourself practice

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Apr 4 '17 at 10:04 Community♦ 1

1

5

votes

2

answers

1k

views

Hackerrank: Gridland Metro

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Mar 8 '17 at 3:28 JS1 28k

1

5

votes

1

answer

1k

views

Hackerank - value of friendship

c# algorithm programming-challenge graph

Jan 19 '17 at 23:12 Jianmin Chen 2,216

5

votes

1

answer

3k

views

HackerEarth - SimpleFunction

c# algorithm programming-challenge time-limit-exceeded hash-map

Jan 8 '17 at 19:13 greybeard 2,398

1

5

votes

3

answers

2k

views

HackerRank woman codesprint: minimum cost

java c# performance programming-challenge linq

Dec 28 '16 at 12:33 t3chb0t 42.5k

1

4

votes

1

answer

2k

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Use Infix expression to construct a binary expression tree

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Aug 23 '18 at 12:54 IEatBagels 11.6k

4

votes

1

answer

454

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Longest Arithmetic Progression Algorithm

c# programming-challenge interview-questions dynamic-programming

Mar 26 '18 at 6:02 Jianmin Chen 2,216

4

votes

1

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406

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Leetcode 125. Valid Palindrome

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Mar 10 '17 at 5:53 paparazzo 5,780

1

4

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1

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1k

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Hackerrank: KnightL on a Chessboard

c# object-oriented programming-challenge breadth-first-search chess

Mar 8 '17 at 4:18 JS1 28k

4

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1

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704

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Hackerrank: Lucky Number Eight (Dynamic Programming)

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Mar 7 '17 at 23:42 Rick Davin 4,092

1

4

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1

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364

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Hackerrank: Prefix neighbors

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3

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1

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379

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Ternary tree preoder traversal (recursive implementation)

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1

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820

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Four sum algorithm mock interview practice

c# algorithm interview-questions

May 1 '18 at 17:39 Jianmin Chen 2,216

1

3

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0

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384

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Hackerrank: Sherlock and anagram (optimal time complexity)

c# performance strings programming-challenge dynamic-programming

Mar 7 '17 at 5:21 Jianmin Chen 2,216

3

votes

0

answers

1k

views

Hackerrank: Sherlock and anagram

c# algorithm strings programming-challenge

Jan 25 '17 at 0:39 Community♦ 1

1

3

votes

1

answer

840

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Find kth largest element in the union of two sorted array

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0

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557

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45 Questions

Leetcode 15. 3 Sum

Hackerrank Queen's Attack II

Hackerrank - value of friendship (II)

Leetcode 56: Merge Intervals

Find kth largest element in the union of two sorted array (Follow up)

Hackerrank: Kindergarten Adventures

Leetcode 125. Valid Palindrome (better performance?)

Recursive function challenge

Leetcode 54: Spiral Matrix

Leetcode 17. Letter Combinations of a Phone Number

Sudoku solver recursive solution with clear structure

Hackerrank - Maximum Disjoint Subtree Product

Find the smallest substring that contains some given subset of characters

LINQ and string.Split do it yourself practice

Hackerrank: Gridland Metro

Hackerank - value of friendship

HackerEarth - SimpleFunction

HackerRank woman codesprint: minimum cost

Use Infix expression to construct a binary expression tree

Longest Arithmetic Progression Algorithm

Leetcode 125. Valid Palindrome

Hackerrank: KnightL on a Chessboard

Hackerrank: Lucky Number Eight (Dynamic Programming)

Hackerrank: Prefix neighbors

Ternary tree preoder traversal (recursive implementation)

Four sum algorithm mock interview practice

Hackerrank: Sherlock and anagram (optimal time complexity)

Hackerrank: Sherlock and anagram

Find kth largest element in the union of two sorted array

Hackerearth Simple Function - Follow-up