Leetcode

LeetCode Topics

Array

0026-remove-duplicates-from-sorted-array
0027-remove-element
0035-search-insert-position
0053-maximum-subarray
0075-sort-colors
0118-pascals-triangle
0136-single-number
0209-minimum-size-subarray-sum
0561-array-partition
0645-set-mismatch
0682-baseball-game
0777-toeplitz-matrix
0907-koko-eating-bananas
0940-fruit-into-baskets
0966-binary-subarrays-with-sum
1046-max-consecutive-ones-iii
1056-capacity-to-ship-packages-within-d-days
1370-count-number-of-nice-subarrays
1426-find-n-unique-integers-sum-up-to-zero
1445-number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold
1605-minimum-number-of-days-to-make-m-bouquets
1675-magnetic-force-between-two-balls
1886-minimum-limit-of-balls-in-a-bag
1950-sign-of-the-product-of-an-array
2112-minimum-difference-between-highest-and-lowest-of-k-scores
2188-minimized-maximum-of-products-distributed-to-any-store
2248-minimum-cost-of-buying-candies-with-discount
2614-maximum-count-of-positive-integer-and-negative-integer

Two Pointers

0026-remove-duplicates-from-sorted-array
0027-remove-element
0075-sort-colors

Sorting

0075-sort-colors
0561-array-partition
0645-set-mismatch
1675-magnetic-force-between-two-balls
2112-minimum-difference-between-highest-and-lowest-of-k-scores
2248-minimum-cost-of-buying-candies-with-discount

Math

0009-palindrome-number
0070-climbing-stairs
1370-count-number-of-nice-subarrays
1426-find-n-unique-integers-sum-up-to-zero
1440-convert-integer-to-the-sum-of-two-no-zero-integers
1642-water-bottles
1806-count-of-matches-in-tournament
1950-sign-of-the-product-of-an-array
2083-three-divisors
2238-a-number-after-a-double-reversal
2383-add-two-integers
2491-smallest-even-multiple

Hash Table

0003-longest-substring-without-repeating-characters
0205-isomorphic-strings
0438-find-all-anagrams-in-a-string
0645-set-mismatch
0940-fruit-into-baskets
0966-binary-subarrays-with-sum
1370-count-number-of-nice-subarrays
1987-substrings-of-size-three-with-distinct-characters

String

0003-longest-substring-without-repeating-characters
0020-valid-parentheses
0058-length-of-last-word
0205-isomorphic-strings
0438-find-all-anagrams-in-a-string
1737-maximum-nesting-depth-of-the-parentheses
1987-substrings-of-size-three-with-distinct-characters
2134-maximize-the-confusion-of-an-exam
3447-clear-digits

Number Theory

2083-three-divisors
2491-smallest-even-multiple

Simulation

0682-baseball-game
1642-water-bottles
1806-count-of-matches-in-tournament
3447-clear-digits

Enumeration

2083-three-divisors

Dynamic Programming

0053-maximum-subarray
0070-climbing-stairs
0118-pascals-triangle

Memoization

0070-climbing-stairs

Bit Manipulation

0136-single-number
0645-set-mismatch

Matrix

0777-toeplitz-matrix

Sliding Window

0003-longest-substring-without-repeating-characters
0209-minimum-size-subarray-sum
0438-find-all-anagrams-in-a-string
0940-fruit-into-baskets
0966-binary-subarrays-with-sum
1046-max-consecutive-ones-iii
1370-count-number-of-nice-subarrays
1445-number-of-sub-arrays-of-size-k-and-average-greater-than-or-equal-to-threshold
1987-substrings-of-size-three-with-distinct-characters
2112-minimum-difference-between-highest-and-lowest-of-k-scores
2134-maximize-the-confusion-of-an-exam

Counting

1987-substrings-of-size-three-with-distinct-characters
2614-maximum-count-of-positive-integer-and-negative-integer

Greedy

0561-array-partition
2188-minimized-maximum-of-products-distributed-to-any-store
2248-minimum-cost-of-buying-candies-with-discount

Counting Sort

0561-array-partition

Binary Search

0035-search-insert-position
0209-minimum-size-subarray-sum
0278-first-bad-version
0907-koko-eating-bananas
1046-max-consecutive-ones-iii
1056-capacity-to-ship-packages-within-d-days
1605-minimum-number-of-days-to-make-m-bouquets
1675-magnetic-force-between-two-balls
1886-minimum-limit-of-balls-in-a-bag
2134-maximize-the-confusion-of-an-exam
2188-minimized-maximum-of-products-distributed-to-any-store
2614-maximum-count-of-positive-integer-and-negative-integer

Prefix Sum

0209-minimum-size-subarray-sum
0966-binary-subarrays-with-sum
1046-max-consecutive-ones-iii
1370-count-number-of-nice-subarrays
2134-maximize-the-confusion-of-an-exam

Interactive

0278-first-bad-version

Stack

0020-valid-parentheses
0225-implement-stack-using-queues
0682-baseball-game
1737-maximum-nesting-depth-of-the-parentheses
3447-clear-digits

Design

0225-implement-stack-using-queues

Queue

0225-implement-stack-using-queues

Divide and Conquer

0053-maximum-subarray