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300 Commits

Author SHA1 Message Date
Oleksii Trekhleb
7d3115edaa Use existing complex numbers implementation for Fourier. 2018-08-13 17:57:17 +03:00
Prateek Karnal
6f10b0e10f Added Fast Fourier transform (#135) 
* Added Fast fourier transform

* Adding DFT explanation

* Added tests for Fast Fourier transform

* Fixed some comments
 2018-08-13 17:45:50 +03:00
Oleksii Trekhleb
3c37ba4424 Add bitsDiff function. 2018-08-13 11:02:58 +03:00
Tapasweni Pathak
2361e6fc44 Add countBitsToflipAToB (#154) 2018-08-13 10:52:29 +03:00
Oleksii Trekhleb
37c7be15e9 Add bit counter function. 2018-08-12 10:18:32 +03:00
Oleksii Trekhleb
9ce137cef8 Add bit counter function. 2018-08-12 10:16:12 +03:00
Tapasweni Pathak
a8f7d6a333 Add countSetBits (#152) 2018-08-12 10:06:13 +03:00
Oleksii Trekhleb
70ec623cbf Add ComplexNumber. 2018-08-11 15:58:19 +03:00
Oleksii Trekhleb
46b13f04fd Update BitWise Operation README. 2018-08-10 18:22:06 +03:00
Oleksii Trekhleb
7f189498cf Update BitWise Operation README. 2018-08-10 18:19:58 +03:00
Ujjwal Aryal
3f963ccc21 Update README.md (#141) 2018-08-10 18:16:39 +03:00
Oleksii Trekhleb
50c025949b Refactor bitwise multiplication. 2018-08-10 18:14:39 +03:00
Ujjwal Aryal
53c7143e07 Create multiply.js (#140) 
Multiply Two numbers using Bit-wise Operator.
 2018-08-10 17:39:45 +03:00
Oleksii Trekhleb
ff4854e0b8 Simplify PolynomialHash function. 2018-08-09 16:04:59 +03:00
Oleksii Trekhleb
51f496ce2e Add SimplePolynomialHash function. 2018-08-09 15:46:22 +03:00
Oleksii Trekhleb
d5be477bd8 Add Polynomial Hash function. 2018-08-09 15:12:36 +03:00
Oleksii Trekhleb
98a44ea832 Added Polynomial Hash Function. 2018-08-09 07:24:31 +03:00
Oleksii Trekhleb
b3a503aa6d Add unicode based tests for RabinKarp. 2018-08-09 06:10:47 +03:00
Oleksii Trekhleb
e7d22b4883 Use '===' for double check string comparision in RabinKarp. 2018-08-09 06:05:09 +03:00
Oleksii Trekhleb
d303d83673 Use rolling hash function for RabinKarp. 2018-08-09 05:57:53 +03:00
Oleksii Trekhleb
650e3099e5 Merge branches 'issue-102-rabin-karp-fix' and 'master' of https://github.com/trekhleb/javascript-algorithms into issue-102-rabin-karp-fix 2018-08-06 16:55:01 +03:00
Oz Weiss
7c9601df3e Update combinationSum.js (#137) 
fixing a few typos in comments
 2018-08-06 16:40:23 +03:00
Diego Paiva
941feda305 Fix kruskal's exception message for directed graph (#138) 2018-08-06 16:26:22 +03:00
Bruce-Feldman
c4605ea13d Refactor Rabin-Karp (#110) 
* Simplify Rabin-Karp functionality

* Created Rabin Fingerprinting module within util directory

* Updated Rabin-Karp search to use rolling hash module
Incorporate tests from @dubzzz
 2018-07-30 12:20:40 +03:00
Oleksii Trekhleb
f1152bf4b4 Update README for Trapping Rain Water problem. 2018-07-27 14:11:33 +03:00
Oleksii Trekhleb
26239f9a97 Refactor dynamic programming approach of Trapping Rain Water problem. 2018-07-27 14:06:58 +03:00
Oleksii Trekhleb
f07e96ec59 Refactor dynamic programming approach of Trapping Rain Water problem. 2018-07-27 14:04:37 +03:00
Oleksii Trekhleb
340a71b7d9 Add brute force solution of Rain Terraces problem. 2018-07-27 13:40:07 +03:00
Oleksii Trekhleb
6fc429975f Add Rain Terraces problem. 2018-07-27 13:00:24 +03:00
Oleksii Trekhleb
3271ee92b9 Add Rain Terraces problem. 2018-07-27 12:59:56 +03:00
Keoni Garner
f142ca00b2 Add rain-terraces (trapping rain water) algorithm (#112) 
* Add rain-terraces (trapping rain water) algorithm

* Fixed linting errors

* Fixed linting errors
 2018-07-27 12:25:15 +03:00
Oleksii Trekhleb
39acb2b65d Avoid using toBeTruthy() and toBeFalsy() because of type coercion. 2018-07-26 16:14:26 +03:00
Oleksii Trekhleb
39014f7543 Fix issue #105. 2018-07-24 12:37:55 +03:00
Oleksii Trekhleb
12f0b331b8 Add more tests for rabinKarp. 2018-07-24 12:29:12 +03:00
Nicolas DUBIEN
0361fe5cf8 Fix knuthMorrisPratt for empty word request (#101) 2018-07-24 12:26:22 +03:00
Oleksii Trekhleb
6a3a4b8697 Add new test cases for KMP algorithm. 2018-07-23 18:00:54 +03:00
Oleksii Trekhleb
76c172b20b Code style fixes for negative Counting Sort testing. 2018-07-22 18:23:39 +03:00
Nicolas DUBIEN
3be02b5519 Fix CountingSort for negative numbers (#100) 2018-07-22 18:03:13 +03:00
Oleksii Trekhleb
149444b47c Add Interpolation Search. 2018-07-18 14:35:02 +03:00
Oleksii Trekhleb
31344fa6a2 Add tests for Jump Search. 2018-07-18 12:03:21 +03:00
Oleksii Trekhleb
a327b68a06 Add Jump Search algorithm. 2018-07-18 09:21:20 +03:00
Oleksii Trekhleb
b73ddec94d Add Pascal's Triangle based solution for Unique Paths problem. 2018-07-14 11:08:19 +03:00
Oleksii Trekhleb
d8fb6579b1 Add Unique Paths problem with backtracking and DP solutions. 2018-07-14 10:35:35 +03:00
Oleksii Trekhleb
fafa52c26e Refactor Floyd-Warshall tests. 2018-07-13 17:36:39 +03:00
Oleksii Trekhleb
2874637d40 Refactor Floyd-Warshall tests. 2018-07-13 17:05:21 +03:00
Oleksii Trekhleb
dca7f6f874 Refactor Floyd-Warshall. 2018-07-13 16:56:33 +03:00
Oleksii Trekhleb
994ac2781a Update Floyd-Warshall READMEs. 2018-07-13 15:02:58 +03:00
vivaxy
9f8fd33202 feat(algorithms): ✨Add Floyd-Warshall (#97) 2018-07-13 14:23:47 +03:00
Oleksii Trekhleb
3e8540beac Add Jump Game. 2018-07-10 08:17:52 +03:00
Oleksii Trekhleb
549759757d Add bottom-up dynamic programming solution to Jump Game. 2018-07-10 07:56:28 +03:00
Oleksii Trekhleb
57c2a334ce Add top-down dynamic programming solution to Jump Game. 2018-07-10 07:37:29 +03:00
Oleksii Trekhleb
b71a2ebe9e Change naming for Jump Game files. 2018-07-10 07:23:25 +03:00
Oleksii Trekhleb
df17e29fb7 Add backtracking solution to JumpGame. 2018-07-10 07:15:36 +03:00
Oleksii Trekhleb
aacd7795d6 Add greedy solution for Jump Game. 2018-07-09 18:00:09 +03:00
Oleksii Trekhleb
e47ca45b7a Add greedy solution for Jump Game. 2018-07-09 17:59:36 +03:00
Oleksii Trekhleb
b87839062a Add Pascal's triangle. 2018-07-07 11:11:20 +03:00
Oleksii Trekhleb
f3189cca43 Add Pascal's triangle. 2018-07-07 10:35:37 +03:00
Oleksii Trekhleb
bb86b30dda Code style fixes for matrix rotation algorithm. 2018-07-06 12:02:42 +03:00
Oleksii Trekhleb
57378c5e19 Update matrix rotation README. 2018-07-06 11:52:34 +03:00
Oleksii Trekhleb
75133592bb Add square matrix rotation in-place algorithm. 2018-07-06 08:15:56 +03:00
Oleksii Trekhleb
17ad4dc4d1 Upgrade packages. 2018-07-05 16:30:00 +03:00
Oleksii Trekhleb
fef2aa7691 Update README. 2018-07-04 18:09:55 +03:00
Bruce-Feldman
e36c441fa9 Minor fixes. (#91) 
* Get Bit: Make more terse

* Power of two: Allowed 1 as a valid power of 2.
Power of two: Removed unnecessary exception throwing.

* Fisher Yates: Made more terse

* Least Common Multiple: Fill undefined value

* Greatest Common Divisor: Fill undefined value.
Greatest Common Divisor: Make more terse.
 2018-07-04 17:53:22 +03:00
Oleksii Trekhleb
93bfe97e27 Add test cases for sorting negative numbers and zeros. 2018-07-03 12:06:00 +03:00
m-maksyutin
d82958dea9 Fix the insertion sort (#86) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method

* Fix the findEdge method of the graph

* Fix the value returned by DisjointSet union

* Add recursive factorial function

* Fix the insertion sort
 2018-07-03 11:56:34 +03:00
Oleksii Trekhleb
b33f1d52dc Add "Combination Sum" backtracking algorithm. 2018-06-30 10:19:14 +03:00
Oleksii Trekhleb
b41cffea0f Add permutations/combinations cheat sheets. 2018-06-29 14:44:11 +03:00
Oleksii Trekhleb
00f75028bf Simplify permutateWithoutRepetitions algorithm. 2018-06-29 12:23:26 +03:00
Oleksii Trekhleb
db7ab9e299 Simplify permutateWithRepetitions algorithm. 2018-06-28 21:28:50 +03:00
m-maksyutin
c5ed81d85e Add recursive factorial function (#85) 
* Fix LinkedList

* Fix the prepend method for the LinkedList

* Fix the remove method for the MinHeap

* Correct a comment

* Fix BST removal method

* Fix the findEdge method of the graph

* Fix the value returned by DisjointSet union

* Add recursive factorial function
 2018-06-28 21:03:31 +03:00
Oleksii Trekhleb
65f08db5de Simplify combineWithRepetitions function. 2018-06-28 14:05:58 +03:00
Oleksii Trekhleb
e5a06e654b Simplify combineWithoutRepetitions function. 2018-06-28 13:46:26 +03:00
Oleksii Trekhleb
55ecc0b313 Fix typo. 2018-06-27 18:59:25 +03:00
Oleksii Trekhleb
933848b215 Add more bit manipulation functions. 2018-06-27 18:05:18 +03:00
Oleksii Trekhleb
c268203259 Add more bit manipulation functions. 2018-06-27 17:33:16 +03:00
Oleksii Trekhleb
792f4906df Add bit manipulation section. 2018-06-27 17:19:20 +03:00
Oleksii Trekhleb
d69199e658 Add regular expression matching algorithm. 2018-06-25 20:02:24 +03:00
Oleksii Trekhleb
89fb0e6239 Add Levenshtein Distance algorithm explanations. 2018-06-23 20:59:59 +03:00
Oleksii Trekhleb
619c58ec87 Update READMEs. 2018-06-22 15:34:32 +03:00
Oleksii Trekhleb
b65a992452 Update READMEs. 2018-06-22 15:04:28 +03:00
Amjad Ali
e53f5f909d Added Complexity of Each Algorithm in Sorting/ directory. (#76) 
* Added Complexity to Bubble Sort README.md

* Added Complexity to Counting-Sort README.md

* Italicized n in Bubble Sort README.md

* Added Complexity to Heap Sort README.md

* Added Complexity to Insertion Sort README.md

* Added Complexity to Merge Sort README.md

* Added Complexity to Quick Sort README.md

* Added Complexity to Radix Sort README.md

* Added Complexity to Selection Sort README.md

* Added Complexity to SHell Sort README.md
 2018-06-22 14:54:40 +03:00
Oleksii Trekhleb
831ce89a45 Update README for integer partition. 2018-06-22 14:50:38 +03:00
Nnadozie Okeke
16b6ea506a Corrected explanations and included an example (#75) 2018-06-22 14:31:57 +03:00
Oleksii Trekhleb
e558231474 Add comments. 2018-06-21 17:59:31 +03:00
Oleksii Trekhleb
81d17bc4f9 Add comments. 2018-06-21 17:48:35 +03:00
Oleksii Trekhleb
5bdcbb397d Code style fixes. 2018-06-21 16:59:20 +03:00
hariv
9e210ae560 Z algorithm implementation (#77) 
* Implemented Z algorithm

* Fixed bugs in implementation and added tests

* Added README explaining z algorithm
 2018-06-21 16:42:13 +03:00
Oleksii Trekhleb
98092ee43f Code style fixes. 2018-06-18 15:57:45 +03:00
Sina Sharafzadeh
8c206a9976 fix unbound knapsack problem with items more than 1(default value) (#73) 2018-06-18 15:50:02 +03:00
Oleksii Trekhleb
d154015cda Code style fixes. 2018-06-14 07:59:47 +03:00
Oleksii Trekhleb
19f4cc70d3 Add recursive way of generating permutations with repetitions. 2018-06-13 08:15:21 +03:00
Matt Mapplebeck
b0c55ec817 add recursive solution to permutations with repetitions problem (#52) 
* add recursive solution to permutations with repetitions problem

* fix untested function, failing test

* add comments
 2018-06-13 08:03:56 +03:00
Oleksii Trekhleb
8d3f83cfb7 Simplify combineWithoutRepetition algorithm. 2018-06-13 07:21:57 +03:00
Felix Rilling
5734e0a43e Fix typos (#59) 
* Fixed typo in the word 'independant'

* Fixed typo in the word 'subsequnce'

* Fixed typo in the word 'icecream'

* Fixed typo in the word 'subsequnce' in shortestCommonSubsequence

* Fixed typo in the word 'depected'

* Fixed typo in the word 'paramaters'
 2018-06-12 17:46:40 +03:00
Oleksii Trekhleb
c536aa2c51 Refactor liuHui. 2018-06-12 17:29:57 +03:00
Oleksii Trekhleb
1e2fdc6943 Refactor README. 2018-06-12 15:32:56 +03:00
mantou
7dc9b80f62 feat: Add Liu Hui's π algorithm (#61) 2018-06-12 14:54:00 +03:00
Oleksii Trekhleb
9de6bc7de3 Add more tests. 2018-06-08 16:54:07 +03:00
Oleksii Trekhleb
5ac85a230c Update READMEs. 2018-06-08 15:38:36 +03:00
Oleksii Trekhleb
6c892c4b2f Fix bug with primality test. 2018-06-05 21:50:08 +03:00