algorithm-codes-java

🔥 Java를 이용하여 알고리즘 문제를 해결한 코드 저장소 ☃️

LeetCode Topics

Array

Problem Name	Difficulty
0011-container-with-most-water	Medium
0015-3sum	Medium
0036-valid-sudoku	Medium
0045-jump-game-ii	Medium
0048-rotate-image	Medium
0049-group-anagrams	Medium
0054-spiral-matrix	Medium
0055-jump-game	Medium
0056-merge-intervals	Medium
0057-insert-interval	Medium
0073-set-matrix-zeroes	Medium
0080-remove-duplicates-from-sorted-array-ii	Medium
0122-best-time-to-buy-and-sell-stock-ii	Medium
0128-longest-consecutive-sequence	Medium
0134-gas-station	Medium
0150-evaluate-reverse-polish-notation	Medium
0167-two-sum-ii-input-array-is-sorted	Medium
0189-rotate-array	Medium
0209-minimum-size-subarray-sum	Medium
0238-product-of-array-except-self	Medium
0274-h-index	Medium
0289-game-of-life	Medium
0380-insert-delete-getrandom-o1	Medium
0452-minimum-number-of-arrows-to-burst-balloons	Medium

Two Pointers

Problem Name	Difficulty
0011-container-with-most-water	Medium
0015-3sum	Medium
0080-remove-duplicates-from-sorted-array-ii	Medium
0151-reverse-words-in-a-string	Medium
0167-two-sum-ii-input-array-is-sorted	Medium
0189-rotate-array	Medium

Math

Problem Name	Difficulty
0002-add-two-numbers	Medium
0012-integer-to-roman	Medium
0048-rotate-image	Medium
0150-evaluate-reverse-polish-notation	Medium
0189-rotate-array	Medium
0380-insert-delete-getrandom-o1	Medium

Dynamic Programming

Problem Name	Difficulty
0045-jump-game-ii	Medium
0055-jump-game	Medium
0122-best-time-to-buy-and-sell-stock-ii	Medium

Greedy

Problem Name	Difficulty
0011-container-with-most-water	Medium
0045-jump-game-ii	Medium
0055-jump-game	Medium
0122-best-time-to-buy-and-sell-stock-ii	Medium
0134-gas-station	Medium
0452-minimum-number-of-arrows-to-burst-balloons	Medium

Sorting

Problem Name	Difficulty
0015-3sum	Medium
0049-group-anagrams	Medium
0056-merge-intervals	Medium
0274-h-index	Medium
0452-minimum-number-of-arrows-to-burst-balloons	Medium

Counting Sort

Problem Name	Difficulty
0274-h-index	Medium

Hash Table

Problem Name	Difficulty
0003-longest-substring-without-repeating-characters	Medium
0012-integer-to-roman	Medium
0036-valid-sudoku	Medium
0049-group-anagrams	Medium
0073-set-matrix-zeroes	Medium
0128-longest-consecutive-sequence	Medium
0380-insert-delete-getrandom-o1	Medium

Design

Problem Name	Difficulty
0155-min-stack	Medium
0380-insert-delete-getrandom-o1	Medium

Randomized

Problem Name	Difficulty
0380-insert-delete-getrandom-o1	Medium

Prefix Sum

Problem Name	Difficulty
0209-minimum-size-subarray-sum	Medium
0238-product-of-array-except-self	Medium

String

Problem Name	Difficulty
0003-longest-substring-without-repeating-characters	Medium
0006-zigzag-conversion	Medium
0012-integer-to-roman	Medium
0049-group-anagrams	Medium
0071-simplify-path	Medium
0151-reverse-words-in-a-string	Medium

Binary Search

Problem Name	Difficulty
0167-two-sum-ii-input-array-is-sorted	Medium
0209-minimum-size-subarray-sum	Medium

Sliding Window

Problem Name	Difficulty
0003-longest-substring-without-repeating-characters	Medium
0209-minimum-size-subarray-sum	Medium

Matrix

Problem Name	Difficulty
0036-valid-sudoku	Medium
0048-rotate-image	Medium
0054-spiral-matrix	Medium
0073-set-matrix-zeroes	Medium
0289-game-of-life	Medium

Simulation

Problem Name	Difficulty
0054-spiral-matrix	Medium
0289-game-of-life	Medium

Union-Find

Problem Name	Difficulty
0128-longest-consecutive-sequence	Medium

Stack

Problem Name	Difficulty
0071-simplify-path	Medium
0150-evaluate-reverse-polish-notation	Medium
0155-min-stack	Medium

Linked List

Problem Name	Difficulty
0002-add-two-numbers	Medium

Recursion

Problem Name	Difficulty
0002-add-two-numbers	Medium