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85 Commits
arrays
arrays
 
 
heap
heap
 
 
sp
sp
 
 
.gitignore
.gitignore
 
 
3sum-closest_16.py
3sum-closest_16.py
 
 
3sum_15.py
3sum_15.py
 
 
README.md
README.md
 
 
TODO.md
TODO.md
 
 
TOREFRESH.md
TOREFRESH.md
 
 
add-two-numbers.py
add-two-numbers.py
 
 
best-time-to-buy-and-sell-stock_121.py
best-time-to-buy-and-sell-stock_121.py
 
 
break-a-palindrome_1328.py
break-a-palindrome_1328.py
 
 
cinema-seat-allocation_1386.py
cinema-seat-allocation_1386.py
 
 
climbing-stairs_70.py
climbing-stairs_70.py
 
 
clone-graph_133.py
clone-graph_133.py
 
 
construct-k-palindrome-strings_1400.py
construct-k-palindrome-strings_1400.py
 
 
copy-list-with-random-pointer.py
copy-list-with-random-pointer.py
 
 
count-and-say.py
count-and-say.py
 
 
count-largest-group_1399.py
count-largest-group_1399.py
 
 
course-schedule-ii_210.py
course-schedule-ii_210.py
 
 
daily-temperatures_739.py
daily-temperatures_739.py
 
 
decode-ways_91.py
decode-ways_91.py
 
 
decompress-run-length-encoded-list_1313.py
decompress-run-length-encoded-list_1313.py
 
 
divide-two-integers.py
divide-two-integers.py
 
 
evaluate-reverse-polish-notation.py
evaluate-reverse-polish-notation.py
 
 
excel-sheet-column-number.py
excel-sheet-column-number.py
 
 
factorial-trailing-zeroes.py
factorial-trailing-zeroes.py
 
 
find-peak-element.py
find-peak-element.py
 
 
find-the-distance-value-between-two-arrays_1385.py
find-the-distance-value-between-two-arrays_1385.py
 
 
find-the-longest-substring-containing-vowels-in-even-counts_1371.py
find-the-longest-substring-containing-vowels-in-even-counts_1371.py
 
 
find-words-that-can-be-formed-by-characters.py
find-words-that-can-be-formed-by-characters.py
 
 
fraction-to-recurring-decimal.py
fraction-to-recurring-decimal.py
 
 
game-of-life_289.py
game-of-life_289.py
 
 
gas-station.py
gas-station.py
 
 
group-anagrams.py
group-anagrams.py
 
 
happy-number.py
happy-number.py
 
 
increasing-decreasing-string_1370.py
increasing-decreasing-string_1370.py
 
 
insert-delete-getrandom-o1-duplicates-allowed_381.py
insert-delete-getrandom-o1-duplicates-allowed_381.py
 
 
insert-delete-getrandom-o1_380.py
insert-delete-getrandom-o1_380.py
 
 
intersection-of-two-linked-lists.py
intersection-of-two-linked-lists.py
 
 
is-graph-bipartite_785.py
is-graph-bipartite_785.py
 
 
jump-game.py
jump-game.py
 
 
largest-number.py
largest-number.py
 
 
letter-combinations-of-a-phone-number-recursion_.py
letter-combinations-of-a-phone-number-recursion_.py
 
 
letter-combinations-of-a-phone-number_.py
letter-combinations-of-a-phone-number_.py
 
 
linked-list-cycle.py
linked-list-cycle.py
 
 
longest-palindromic-substring_5.py
longest-palindromic-substring_5.py
 
 
longest-substring-without-repeating-characters_.py
longest-substring-without-repeating-characters_.py
 
 
longest-zigzag-path-in-a-binary-tree_1372.py
longest-zigzag-path-in-a-binary-tree_1372.py
 
 
lru-cache.py
lru-cache.py
 
 
majority-element.py
majority-element.py
 
 
maximal-square_221.py
maximal-square_221.py
 
 
maximum-product-subarray.py
maximum-product-subarray.py
 
 
maximum-subarray_53.py
maximum-subarray_53.py
 
 
median-of-two-sorted-arrays.py
median-of-two-sorted-arrays.py
 
 
merge-two-sorted-lists.py
merge-two-sorted-lists.py
 
 
min-stack.py
min-stack.py
 
 
minimum-domino-rotations-for-equal-row_1007.py
minimum-domino-rotations-for-equal-row_1007.py
 
 
minimum-window-substring.py
minimum-window-substring.py
 
 
next-greater-element-i_496.py
next-greater-element-i_496.py
 
 
next-greater-element-ii_503.py
next-greater-element-ii_503.py
 
 
next-greater-element-iii_556.py
next-greater-element-iii_556.py
 
 
next-permutation_31.py
next-permutation_31.py
 
 
number-of-1-bits.py
number-of-1-bits.py
 
 
number-of-islands.py
number-of-islands.py
 
 
number-of-steps-to-reduce-a-number-to-zero_1342.py
number-of-steps-to-reduce-a-number-to-zero_1342.py
 
 
number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold_1343.py
number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold_1343.py
 
 
paint-house_256.py
paint-house_256.py
 
 
palindrome-partitioning.py
palindrome-partitioning.py
 
 
palindromic-substrings_647.py
palindromic-substrings_647.py
 
 
permutations_46.py
permutations_46.py
 
 
plus-one.py
plus-one.py
 
 
populating-next-right-pointers-in-each-node.py
populating-next-right-pointers-in-each-node.py
 
 
powx-n.py
powx-n.py
 
 
product-of-array-except-self_238.py
product-of-array-except-self_238.py
 
 
rank-transform-of-an-array_1331.py
rank-transform-of-an-array_1331.py
 
 
reconstruct-itinerary_332.py
reconstruct-itinerary_332.py
 
 
regular-expression-matching_5.py
regular-expression-matching_5.py
 
 
remove-duplicates-from-sorted-array.py
remove-duplicates-from-sorted-array.py
 
 
remove-nth-node-from-end-of-list.py
remove-nth-node-from-end-of-list.py
 
 
rotate-image.py
rotate-image.py
 
 
search-in-rotated-sorted-array_33.py
search-in-rotated-sorted-array_33.py
 
 
set-matrix-zeroes.py
set-matrix-zeroes.py
 
 
single-number.py
single-number.py
 
 
sort-colors.py
sort-colors.py
 
 
sort-integers-by-the-power-value_1387.py
sort-integers-by-the-power-value_1387.py
 
 
sort-the-matrix-diagonally_1329.py
sort-the-matrix-diagonally_1329.py
 
 
sqrtx.py
sqrtx.py
 
 
subarray-sum-equals-k_560.py
subarray-sum-equals-k_560.py
 
 
sum-of-nodes-with-even-valued-grandparent_1315.py
sum-of-nodes-with-even-valued-grandparent_1315.py
 
 
trapping-rain-water_42.py
trapping-rain-water_42.py
 
 
two-sum_1.py
two-sum_1.py
 
 
unique-binary-search-trees-ii_95.py
unique-binary-search-trees-ii_95.py
 
 
unique-binary-search-trees_96.py
unique-binary-search-trees_96.py
 
 
unique-email-addresses_929.py
unique-email-addresses_929.py
 
 
unique-paths-ii_63.py
unique-paths-ii_63.py
 
 
unique-paths_62.py
unique-paths_62.py
 
 
valid-palindrome.py
valid-palindrome.py
 
 
valid-parentheses.py
valid-parentheses.py
 
 
valid-sudoku.py
valid-sudoku.py
 
 

Repository files navigation

LeetCode Problems

Arrays

  1. Best Time to Buy and Sell Stock
  2. Find All Duplicates in an Array [18.12.20]
  3. Find All Numbers Disappeared in an Array [18.12.20]
  4. First Missing Positive [18.12.20]
  5. Decompress Run-Length Encoded List [12.1.20] !! 16. 3Sum Closest [15.01.20]
  6. 3Sum [15.01.20] !238. Product of Array Except Self [16.01.20]
  7. Game of Life [17.01.20] !33. Search in Rotated Sorted Array [19.01.20] !!!!560. Subarray Sum Equals K [20.01.20]
  8. Two Sum [20.01.20]
  9. Trapping Rain Water [21.01.20]
  10. Spiral Matrix [21.01.20] !46. Permutations [22.01.20] !!!!31. Next Permutation [22.01.20] !!380. Insert Delete GetRandom O(1) [23.01.20] !!381. Insert Delete GetRandom O(1) - Duplicates allowed [23.01.20]
  11. Rank Transform of an Array [25.01.20] !!1329. Sort the Matrix Diagonally [26.01.20]
  12. Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold [10.02.20] !!! 1007. Minimum Domino Rotations For Equal Row [22.02.20] ! 1386. Cinema Seat Allocation [23.03.20] !1385. Find the Distance Value Between Two Arrays [21.03.20]
  13. Count Largest Group [04.04.20]

Binary Search

Graph

!!!! 332. Reconstruct Itinerary !! 09.01.20 !!!! 207. Course Schedule - !! 09.01.20 210. Course Schedule II - 10.01.20 133. Clone Graph - 11.01.20 !! 785. Is Graph Bipartite? - 14.01.20

Heap

Hash Table

  1. Two Sum [20.01.20] !!380. Insert Delete GetRandom O(1) [23.01.20] !!381. Insert Delete GetRandom O(1) - Duplicates allowed [23.01.20]

Trees

  1. Unique Binary Search Trees [03.1.20]
  2. Sum of Nodes with Even-Valued Grandparent [11.01.20]

Dynamic Programming

https://leetcode.com/discuss/general-discussion/491522/dynamic-programming-questions-thread 121. Best Time to Buy and Sell Stock !!! 96. Unique Binary Search Trees [03.1.20] !!! 95. Unique Binary Search Trees II fcking magic [04.01.20] !53. Maximum Subarray [04.01.20] !!!5. Longest Palindromic Substring [04.01.20] 70. Climbing Stairs [27.01.20] !!! 10. Regular Expression Matching [28.01.20] ! 198. House Robber [29.01.20] 62. Unique Paths [30.01.20] 63. Unique Paths II [30.01.20] !256. Paint House [31.01.20] !!91. Decode Ways [30.01.20] !!!!221. Maximal Square [03.02.20]

Tree

!!!!1372. Longest ZigZag Path in a Binary Tree [03.09.20]

Backtracking

Bit Manipulation !!1

  1. Number of Steps to Reduce a Number to Zero [10.02.20]

Math

!! 1344. Angle Between Hands of a Clock [11.02.20]

Sorting

!!!! 324. Wiggle Sort II [16.02.20]

Strings

!!1328. Break a Palindrome [26.01.20] 929. Unique Email Addresses [24.01.20] !! 556. Next Greater Element III [02.03.20] 1370. Increasing Decreasing String [10.04.20]

Stack

!! 42. Trapping Rain Water [21.01.20] !!!! 496. Next Greater Element I [29.02.20] ! 503. Next Greater Element II [01.03.20] 739. Daily Temperatures [03.03.20] !!!! 84. Largest Rectangle in Histogram [04.03.20]

Sort

  1. Sort Integers by The Power Value [24.03.20]

Greedy

!!! 1007. Minimum Domino Rotations For Equal Row [22.02.20] !! 1400. Construct K Palindrome Strings [04.04.20]

Bit manipulation

  1. Find the Longest Substring Containing Vowels in Even Counts [19.09.20]

Timeline

121 18.12.20 - 442, 448, 41 03.1.20 - 96 04.1.20 - 95, 53, 5 (with help), 647 07.1.20 - 332 09.1.20 - 207 09.1.20 - 207 10.1.20 - 210 11.1.20 - 133, 1315 12.1.20 - 1313 14.1.20 - 785 15.1.20 - 16 (can't solve), 15 16.01.20 - 238 17.01.20 - 289 19.01.20 - 33 20.01.20 - 560, 1121 21.01.20 - 42, 54 22.01.20 - 46, 31 23.01.20 - 380, 381 25.01.20 - 1331 26.01.20 - 1328, 1329 27.01.20 - 70 28.01.20 - 10 29.01.20 - 198 30.01.20 - 62, 63 30.01.20 - 256 01.02.20 - 91 01.02.20 - 221 10.02.20 - 1342 11.02.20 - 1344 16.02.20 - 324 22.02.20 - 1007 24.02.20 - 929 29.02.20 - 496 01.03.20 - 503 02.03.20 - 556 03.03.20 - 739 04.03.20 - 84 09.03.20 - 1372 10.03.20 - 1370 21.03.20 - 1385 23.03.20 - 1386 24.03.20 - 1387 04.04.20 - 1399 04.04.20 - 1400 19.09.20 - 1371

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