LeetCode Topics

Array

0004-median-of-two-sorted-arrays
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0121-best-time-to-buy-and-sell-stock
0136-single-number
0153-find-minimum-in-rotated-sorted-array
0354-russian-doll-envelopes
0436-find-right-interval
0658-find-k-closest-elements
0704-binary-search
1260-shift-2d-grid
1288-remove-covered-intervals
1351-count-negative-numbers-in-a-sorted-matrix
1512-number-of-good-pairs
1582-special-positions-in-a-binary-matrix
1608-special-array-with-x-elements-greater-than-or-equal-x
1979-find-greatest-common-divisor-of-array
2016-maximum-difference-between-increasing-elements
2078-two-furthest-houses-with-different-colors
2574-left-and-right-sum-differences

Binary Search

0004-median-of-two-sorted-arrays
0033-search-in-rotated-sorted-array
0034-find-first-and-last-position-of-element-in-sorted-array
0035-search-insert-position
0069-sqrtx
0153-find-minimum-in-rotated-sorted-array
0278-first-bad-version
0354-russian-doll-envelopes
0374-guess-number-higher-or-lower
0436-find-right-interval
0658-find-k-closest-elements
0704-binary-search
1351-count-negative-numbers-in-a-sorted-matrix
1608-special-array-with-x-elements-greater-than-or-equal-x

Sorting

0354-russian-doll-envelopes
0436-find-right-interval
0658-find-k-closest-elements
1288-remove-covered-intervals
1608-special-array-with-x-elements-greater-than-or-equal-x
3517-smallest-palindromic-rearrangement-i

Dynamic Programming

0121-best-time-to-buy-and-sell-stock
0354-russian-doll-envelopes
1025-divisor-game

Greedy

2078-two-furthest-houses-with-different-colors

Math

0069-sqrtx
1025-divisor-game
1512-number-of-good-pairs
1979-find-greatest-common-divisor-of-array
3658-gcd-of-odd-and-even-sums
3754-concatenate-non-zero-digits-and-multiply-by-sum-i
3756-concatenate-non-zero-digits-and-multiply-by-sum-ii

Matrix

1260-shift-2d-grid
1351-count-negative-numbers-in-a-sorted-matrix
1582-special-positions-in-a-binary-matrix

Prefix Sum

2574-left-and-right-sum-differences
3756-concatenate-non-zero-digits-and-multiply-by-sum-ii

String

3517-smallest-palindromic-rearrangement-i
3756-concatenate-non-zero-digits-and-multiply-by-sum-ii

Brainteaser

1025-divisor-game

Game Theory

1025-divisor-game

Hash Table

1512-number-of-good-pairs

Counting

1512-number-of-good-pairs

Number Theory

1979-find-greatest-common-divisor-of-array
3658-gcd-of-odd-and-even-sums

Database

0595-big-countries

Two Pointers

0658-find-k-closest-elements

Sliding Window

0658-find-k-closest-elements

Heap (Priority Queue)

0658-find-k-closest-elements

Divide and Conquer

0004-median-of-two-sorted-arrays

Interactive

0278-first-bad-version
0374-guess-number-higher-or-lower

Simulation

1260-shift-2d-grid

Bit Manipulation

0136-single-number

Counting Sort

3517-smallest-palindromic-rearrangement-i