leetcode-tracker

c++

LeetCode Topics

Math

Problem Name	Difficulty
0189-rotate-array	Medium
0202-happy-number	Easy
0415-add-strings	Easy
1323-maximum-69-number	Easy
1486-xor-operation-in-an-array	Easy
1822-sign-of-the-product-of-an-array	Easy
2180-count-integers-with-even-digit-sum	Easy
2535-difference-between-element-sum-and-digit-sum-of-an-array	Easy
2769-find-the-maximum-achievable-number	Easy
3024-type-of-triangle	Easy
3232-find-if-digit-game-can-be-won	Easy
3783-mirror-distance-of-an-integer	Easy
3875-construct-uniform-parity-array-i	Easy
3876-construct-uniform-parity-array-ii	Medium

Bit Manipulation

Problem Name	Difficulty
0645-set-mismatch	Easy
1486-xor-operation-in-an-array	Easy

String

Problem Name	Difficulty
0205-isomorphic-strings	Easy
0290-word-pattern	Easy
0415-add-strings	Easy
0657-robot-return-to-origin	Easy
0771-jewels-and-stones	Easy
1160-find-words-that-can-be-formed-by-characters	Easy
1528-shuffle-string	Easy
1768-merge-strings-alternately	Easy
1961-check-if-string-is-a-prefix-of-array	Easy
2011-final-value-of-variable-after-performing-operations	Easy
2068-check-whether-two-strings-are-almost-equivalent	Easy
2108-find-first-palindromic-string-in-the-array	Easy
2114-maximum-number-of-words-found-in-sentences	Easy
2839-check-if-strings-can-be-made-equal-with-operations-i	Easy
2840-check-if-strings-can-be-made-equal-with-operations-ii	Medium
3019-number-of-changing-keys	Easy
3110-score-of-a-string	Easy
3120-count-the-number-of-special-characters-i	Easy

Array

Problem Name	Difficulty
0033-search-in-rotated-sorted-array	Medium
0134-gas-station	Medium
0189-rotate-array	Medium
0229-majority-element-ii	Medium
0350-intersection-of-two-arrays-ii	Easy
0448-find-all-numbers-disappeared-in-an-array	Easy
0645-set-mismatch	Easy
0682-baseball-game	Easy
1160-find-words-that-can-be-formed-by-characters	Easy
1437-check-if-all-1s-are-at-least-length-k-places-away	Easy
1528-shuffle-string	Easy
1822-sign-of-the-product-of-an-array	Easy
1833-maximum-ice-cream-bars	Medium
1961-check-if-string-is-a-prefix-of-array	Easy
2011-final-value-of-variable-after-performing-operations	Easy
2078-two-furthest-houses-with-different-colors	Easy
2108-find-first-palindromic-string-in-the-array	Easy
2114-maximum-number-of-words-found-in-sentences	Easy
2535-difference-between-element-sum-and-digit-sum-of-an-array	Easy
2974-minimum-number-game	Easy
3024-type-of-triangle	Easy
3232-find-if-digit-game-can-be-won	Easy
3740-minimum-distance-between-three-equal-elements-i	Easy
3875-construct-uniform-parity-array-i	Easy
3876-construct-uniform-parity-array-ii	Medium

Hash Table

Problem Name	Difficulty
0202-happy-number	Easy
0205-isomorphic-strings	Easy
0229-majority-element-ii	Medium
0290-word-pattern	Easy
0350-intersection-of-two-arrays-ii	Easy
0448-find-all-numbers-disappeared-in-an-array	Easy
0645-set-mismatch	Easy
0771-jewels-and-stones	Easy
1160-find-words-that-can-be-formed-by-characters	Easy
2068-check-whether-two-strings-are-almost-equivalent	Easy
2840-check-if-strings-can-be-made-equal-with-operations-ii	Medium
3120-count-the-number-of-special-characters-i	Easy
3740-minimum-distance-between-three-equal-elements-i	Easy

Two Pointers

Problem Name	Difficulty
0189-rotate-array	Medium
0202-happy-number	Easy
0350-intersection-of-two-arrays-ii	Easy
1768-merge-strings-alternately	Easy
1961-check-if-string-is-a-prefix-of-array	Easy
2108-find-first-palindromic-string-in-the-array	Easy

Sorting

Problem Name	Difficulty
0229-majority-element-ii	Medium
0350-intersection-of-two-arrays-ii	Easy
0645-set-mismatch	Easy
1833-maximum-ice-cream-bars	Medium
2840-check-if-strings-can-be-made-equal-with-operations-ii	Medium
2974-minimum-number-game	Easy
3024-type-of-triangle	Easy

Simulation

Problem Name	Difficulty
0415-add-strings	Easy
0657-robot-return-to-origin	Easy
0682-baseball-game	Easy
2011-final-value-of-variable-after-performing-operations	Easy
2180-count-integers-with-even-digit-sum	Easy
2974-minimum-number-game	Easy

Heap (Priority Queue)

Problem Name	Difficulty
2974-minimum-number-game	Easy

Counting

Problem Name	Difficulty
0229-majority-element-ii	Medium
1160-find-words-that-can-be-formed-by-characters	Easy
2068-check-whether-two-strings-are-almost-equivalent	Easy

Greedy

Problem Name	Difficulty
0134-gas-station	Medium
1323-maximum-69-number	Easy
1833-maximum-ice-cream-bars	Medium
2078-two-furthest-houses-with-different-colors	Easy

Counting Sort

Problem Name	Difficulty
1833-maximum-ice-cream-bars	Medium

Binary Search

Problem Name	Difficulty
0033-search-in-rotated-sorted-array	Medium
0350-intersection-of-two-arrays-ii	Easy

Stack

Problem Name	Difficulty
0682-baseball-game	Easy