LeetCode

LeetCode Topics

Array

0001-two-sum
1395-minimum-time-visiting-all-points
1580-shuffle-the-array
1603-running-sum-of-1d-array
1635-number-of-good-pairs
1693-sum-of-all-odd-length-subarrays
1791-richest-customer-wealth
1993-sum-of-all-subset-xor-totals
2524-largest-positive-integer-that-exists-with-its-negative
2536-determine-if-two-events-have-conflict
2624-difference-between-element-sum-and-digit-sum-of-an-array
3476-find-minimum-operations-to-make-all-elements-divisible-by-three
3515-find-if-digit-game-can-be-won

Hash Table

0001-two-sum
0012-integer-to-roman
0013-roman-to-integer
0383-ransom-note
1635-number-of-good-pairs
2524-largest-positive-integer-that-exists-with-its-negative

Math

0009-palindrome-number
0012-integer-to-roman
0013-roman-to-integer
0412-fizz-buzz
0728-self-dividing-numbers
1395-minimum-time-visiting-all-points
1406-subtract-the-product-and-sum-of-digits-of-an-integer
1411-convert-binary-number-in-a-linked-list-to-integer
1444-number-of-steps-to-reduce-a-number-to-zero
1448-maximum-69-number
1610-xor-operation-in-an-array
1635-number-of-good-pairs
1693-sum-of-all-odd-length-subarrays
1806-count-of-matches-in-tournament
1920-determine-color-of-a-chessboard-square
1993-sum-of-all-subset-xor-totals
2264-minimum-sum-of-four-digit-number-after-splitting-digits
2383-add-two-integers
2491-smallest-even-multiple
2507-number-of-common-factors
2556-convert-the-temperature
2571-find-the-pivot-integer
2608-count-the-digits-that-divide-a-number
2624-difference-between-element-sum-and-digit-sum-of-an-array
2752-sum-multiples
2812-find-the-maximum-achievable-number
3055-maximum-odd-binary-number
3172-divisible-and-non-divisible-sums-difference
3371-harshad-number
3476-find-minimum-operations-to-make-all-elements-divisible-by-three
3515-find-if-digit-game-can-be-won

String

0012-integer-to-roman
0013-roman-to-integer
0014-longest-common-prefix
0020-valid-parentheses
0383-ransom-note
0412-fizz-buzz
1920-determine-color-of-a-chessboard-square
2536-determine-if-two-events-have-conflict
3055-maximum-odd-binary-number
3379-score-of-a-string

Trie

0014-longest-common-prefix

Stack

0020-valid-parentheses

Prefix Sum

1603-running-sum-of-1d-array
1693-sum-of-all-odd-length-subarrays
2571-find-the-pivot-integer

Matrix

1791-richest-customer-wealth

Simulation

0412-fizz-buzz
1806-count-of-matches-in-tournament

Bit Manipulation

1444-number-of-steps-to-reduce-a-number-to-zero
1610-xor-operation-in-an-array
1993-sum-of-all-subset-xor-totals

Linked List

0908-middle-of-the-linked-list
1411-convert-binary-number-in-a-linked-list-to-integer

Two Pointers

0908-middle-of-the-linked-list
2524-largest-positive-integer-that-exists-with-its-negative

Counting

0383-ransom-note
1635-number-of-good-pairs

Backtracking

1993-sum-of-all-subset-xor-totals

Combinatorics

1993-sum-of-all-subset-xor-totals

Enumeration

1993-sum-of-all-subset-xor-totals
2507-number-of-common-factors

Number Theory

2491-smallest-even-multiple
2507-number-of-common-factors

Greedy

1448-maximum-69-number
2264-minimum-sum-of-four-digit-number-after-splitting-digits
3055-maximum-odd-binary-number

Sorting

2264-minimum-sum-of-four-digit-number-after-splitting-digits
2524-largest-positive-integer-that-exists-with-its-negative

Geometry

1395-minimum-time-visiting-all-points