LeetCode Topics

A collection of LeetCode questions to ace the coding interview! - Created using LeetHub v2

LeetCode Topics

Depth-First Search


0684-redundant-connection
1218-lowest-common-ancestor-of-deepest-leaves
1387-find-elements-in-a-contaminated-binary-tree
2564-most-profitable-path-in-a-tree
2793-count-the-number-of-complete-components

Breadth-First Search


0684-redundant-connection
1218-lowest-common-ancestor-of-deepest-leaves
1387-find-elements-in-a-contaminated-binary-tree
2564-most-profitable-path-in-a-tree
2793-count-the-number-of-complete-components

Union Find


0684-redundant-connection
2793-count-the-number-of-complete-components
3348-minimum-cost-walk-in-weighted-graph

Graph


0684-redundant-connection
2090-number-of-ways-to-arrive-at-destination
2220-find-all-possible-recipes-from-given-supplies
2564-most-profitable-path-in-a-tree
2793-count-the-number-of-complete-components
3348-minimum-cost-walk-in-weighted-graph

Array


0905-length-of-longest-fibonacci-subsequence
1335-maximum-candies-allocated-to-k-children
1364-tuple-with-same-product
1421-find-numbers-with-even-number-of-digits
1631-number-of-sub-arrays-with-odd-sum
1849-maximum-absolute-sum-of-any-subarray
1878-check-if-array-is-sorted-and-rotated
1927-maximum-ascending-subarray-sum
2048-build-array-from-permutation
2107-find-unique-binary-string
2220-find-all-possible-recipes-from-given-supplies
2249-count-the-hidden-sequences
2262-solving-questions-with-brainpower
2265-partition-array-according-to-given-pivot
2277-count-equal-and-divisible-pairs-in-an-array
2394-count-subarrays-with-score-less-than-k
2448-count-number-of-bad-pairs
2551-apply-operations-to-an-array
2564-most-profitable-path-in-a-tree
2614-maximum-count-of-positive-integer-and-negative-integer
2626-count-the-number-of-good-subarrays
2665-minimum-time-to-repair-cars
2707-merge-two-2d-arrays-by-summing-values
3152-maximum-value-of-an-ordered-triplet-ii
3154-maximum-value-of-an-ordered-triplet-i
3213-count-subarrays-where-max-element-appears-at-least-k-times
3227-find-missing-and-repeated-values
3348-minimum-cost-walk-in-weighted-graph
3372-longest-strictly-increasing-or-strictly-decreasing-subarray
3429-special-array-i
3434-find-the-number-of-distinct-colors-among-the-balls
3621-minimum-operations-to-make-array-values-equal-to-k
3643-zero-array-transformation-ii
3656-minimum-number-of-operations-to-make-elements-in-array-distinct

Hash Table


0905-length-of-longest-fibonacci-subsequence
1160-letter-tile-possibilities
1218-lowest-common-ancestor-of-deepest-leaves
1364-tuple-with-same-product
1387-find-elements-in-a-contaminated-binary-tree
1460-number-of-substrings-containing-all-three-characters
1500-count-largest-group
1915-check-if-one-string-swap-can-make-strings-equal
2107-find-unique-binary-string
2220-find-all-possible-recipes-from-given-supplies
2434-design-a-number-container-system
2448-count-number-of-bad-pairs
2626-count-the-number-of-good-subarrays
2707-merge-two-2d-arrays-by-summing-values
3227-find-missing-and-repeated-values
3434-find-the-number-of-distinct-colors-among-the-balls
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii
3621-minimum-operations-to-make-array-values-equal-to-k
3656-minimum-number-of-operations-to-make-elements-in-array-distinct

String


0038-count-and-say
1160-letter-tile-possibilities
1460-number-of-substrings-containing-all-three-characters
1516-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
1915-check-if-one-string-swap-can-make-strings-equal
2107-find-unique-binary-string
2220-find-all-possible-recipes-from-given-supplies
2456-construct-smallest-number-from-di-string
2463-minimum-recolors-to-get-k-consecutive-black-blocks
3447-clear-digits
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Counting


1160-letter-tile-possibilities
1364-tuple-with-same-product
1915-check-if-one-string-swap-can-make-strings-equal
2448-count-number-of-bad-pairs
2614-maximum-count-of-positive-integer-and-negative-integer

Simulation


2048-build-array-from-permutation
2265-partition-array-according-to-given-pivot
2551-apply-operations-to-an-array
3434-find-the-number-of-distinct-colors-among-the-balls
3447-clear-digits

Design


1387-find-elements-in-a-contaminated-binary-tree
2434-design-a-number-container-system

Heap (Priority Queue)


2434-design-a-number-container-system

Ordered Set


2434-design-a-number-container-system

Math


0069-sqrtx
1421-find-numbers-with-even-number-of-digits
1500-count-largest-group
1631-number-of-sub-arrays-with-odd-sum
2448-count-number-of-bad-pairs
2610-closest-prime-numbers-in-range
2649-count-total-number-of-colored-cells
2802-find-the-punishment-number-of-an-integer
3227-find-missing-and-repeated-values

Stack


2456-construct-smallest-number-from-di-string
3447-clear-digits

Backtracking


1160-letter-tile-possibilities
1516-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
2107-find-unique-binary-string
2456-construct-smallest-number-from-di-string
2802-find-the-punishment-number-of-an-integer

Greedy


2456-construct-smallest-number-from-di-string

Tree


1218-lowest-common-ancestor-of-deepest-leaves
1387-find-elements-in-a-contaminated-binary-tree
2564-most-profitable-path-in-a-tree

Binary Tree


1218-lowest-common-ancestor-of-deepest-leaves
1387-find-elements-in-a-contaminated-binary-tree

Dynamic Programming


0905-length-of-longest-fibonacci-subsequence
1631-number-of-sub-arrays-with-odd-sum
1849-maximum-absolute-sum-of-any-subarray
2090-number-of-ways-to-arrive-at-destination
2262-solving-questions-with-brainpower

Prefix Sum


1631-number-of-sub-arrays-with-odd-sum
2249-count-the-hidden-sequences
2394-count-subarrays-with-score-less-than-k
3643-zero-array-transformation-ii

Two Pointers


2265-partition-array-according-to-given-pivot
2551-apply-operations-to-an-array
2707-merge-two-2d-arrays-by-summing-values

Matrix


3227-find-missing-and-repeated-values

Number Theory


2610-closest-prime-numbers-in-range

Sliding Window


1460-number-of-substrings-containing-all-three-characters
2394-count-subarrays-with-score-less-than-k
2463-minimum-recolors-to-get-k-consecutive-black-blocks
2626-count-the-number-of-good-subarrays
3213-count-subarrays-where-max-element-appears-at-least-k-times
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii

Binary Search


0069-sqrtx
1335-maximum-candies-allocated-to-k-children
2394-count-subarrays-with-score-less-than-k
2614-maximum-count-of-positive-integer-and-negative-integer
2665-minimum-time-to-repair-cars
3643-zero-array-transformation-ii

Bit Manipulation


3348-minimum-cost-walk-in-weighted-graph

Topological Sort


2090-number-of-ways-to-arrive-at-destination
2220-find-all-possible-recipes-from-given-supplies

Shortest Path


2090-number-of-ways-to-arrive-at-destination

Name		Name	Last commit message	Last commit date
Latest commit History 655 Commits
0038-count-and-say		0038-count-and-say
0069-sqrtx		0069-sqrtx
0684-redundant-connection		0684-redundant-connection
0905-length-of-longest-fibonacci-subsequence		0905-length-of-longest-fibonacci-subsequence
0925-construct-binary-tree-from-preorder-and-postorder-traversal		0925-construct-binary-tree-from-preorder-and-postorder-traversal
1160-letter-tile-possibilities		1160-letter-tile-possibilities
1218-lowest-common-ancestor-of-deepest-leaves		1218-lowest-common-ancestor-of-deepest-leaves
1335-maximum-candies-allocated-to-k-children		1335-maximum-candies-allocated-to-k-children
1364-tuple-with-same-product		1364-tuple-with-same-product
1387-find-elements-in-a-contaminated-binary-tree		1387-find-elements-in-a-contaminated-binary-tree
1421-find-numbers-with-even-number-of-digits		1421-find-numbers-with-even-number-of-digits
1460-number-of-substrings-containing-all-three-characters		1460-number-of-substrings-containing-all-three-characters
1500-count-largest-group		1500-count-largest-group
1516-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n		1516-the-k-th-lexicographical-string-of-all-happy-strings-of-length-n
1558-course-schedule-iv		1558-course-schedule-iv
1631-number-of-sub-arrays-with-odd-sum		1631-number-of-sub-arrays-with-odd-sum
1849-maximum-absolute-sum-of-any-subarray		1849-maximum-absolute-sum-of-any-subarray
1878-check-if-array-is-sorted-and-rotated		1878-check-if-array-is-sorted-and-rotated
1915-check-if-one-string-swap-can-make-strings-equal		1915-check-if-one-string-swap-can-make-strings-equal
1927-maximum-ascending-subarray-sum		1927-maximum-ascending-subarray-sum
2048-build-array-from-permutation		2048-build-array-from-permutation
2090-number-of-ways-to-arrive-at-destination		2090-number-of-ways-to-arrive-at-destination
2107-find-unique-binary-string		2107-find-unique-binary-string
2220-find-all-possible-recipes-from-given-supplies		2220-find-all-possible-recipes-from-given-supplies
2249-count-the-hidden-sequences		2249-count-the-hidden-sequences
2262-solving-questions-with-brainpower		2262-solving-questions-with-brainpower
2265-partition-array-according-to-given-pivot		2265-partition-array-according-to-given-pivot
2277-count-equal-and-divisible-pairs-in-an-array		2277-count-equal-and-divisible-pairs-in-an-array
2394-count-subarrays-with-score-less-than-k		2394-count-subarrays-with-score-less-than-k
2434-design-a-number-container-system		2434-design-a-number-container-system
2448-count-number-of-bad-pairs		2448-count-number-of-bad-pairs
2456-construct-smallest-number-from-di-string		2456-construct-smallest-number-from-di-string
2463-minimum-recolors-to-get-k-consecutive-black-blocks		2463-minimum-recolors-to-get-k-consecutive-black-blocks
2551-apply-operations-to-an-array		2551-apply-operations-to-an-array
2564-most-profitable-path-in-a-tree		2564-most-profitable-path-in-a-tree
2610-closest-prime-numbers-in-range		2610-closest-prime-numbers-in-range
2614-maximum-count-of-positive-integer-and-negative-integer		2614-maximum-count-of-positive-integer-and-negative-integer
2626-count-the-number-of-good-subarrays		2626-count-the-number-of-good-subarrays
2649-count-total-number-of-colored-cells		2649-count-total-number-of-colored-cells
2665-minimum-time-to-repair-cars		2665-minimum-time-to-repair-cars
2707-merge-two-2d-arrays-by-summing-values		2707-merge-two-2d-arrays-by-summing-values
2793-count-the-number-of-complete-components		2793-count-the-number-of-complete-components
2802-find-the-punishment-number-of-an-integer		2802-find-the-punishment-number-of-an-integer
3152-maximum-value-of-an-ordered-triplet-ii		3152-maximum-value-of-an-ordered-triplet-ii
3154-maximum-value-of-an-ordered-triplet-i		3154-maximum-value-of-an-ordered-triplet-i
3213-count-subarrays-where-max-element-appears-at-least-k-times		3213-count-subarrays-where-max-element-appears-at-least-k-times
3227-find-missing-and-repeated-values		3227-find-missing-and-repeated-values
3348-minimum-cost-walk-in-weighted-graph		3348-minimum-cost-walk-in-weighted-graph
3372-longest-strictly-increasing-or-strictly-decreasing-subarray		3372-longest-strictly-increasing-or-strictly-decreasing-subarray
3429-special-array-i		3429-special-array-i
3434-find-the-number-of-distinct-colors-among-the-balls		3434-find-the-number-of-distinct-colors-among-the-balls
3447-clear-digits		3447-clear-digits
3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii		3569-count-of-substrings-containing-every-vowel-and-k-consonants-ii
3621-minimum-operations-to-make-array-values-equal-to-k		3621-minimum-operations-to-make-array-values-equal-to-k
3643-zero-array-transformation-ii		3643-zero-array-transformation-ii
3656-minimum-number-of-operations-to-make-elements-in-array-distinct		3656-minimum-number-of-operations-to-make-elements-in-array-distinct
algos		algos
code_byte		code_byte
code_chef		code_chef
coder_byte		coder_byte
combinations		combinations
coursera/design_patterns		coursera/design_patterns
db_models		db_models
dpworld		dpworld
dynamic		dynamic
geeks/dynamic_programming		geeks/dynamic_programming
gfg		gfg
goodrich_algo		goodrich_algo
graphs		graphs
hacker_earth		hacker_earth
hacker_rank		hacker_rank
interview		interview
interviews		interviews
jjava		jjava
leet_code		leet_code
nbproject		nbproject
ppython		ppython
qs		qs
scaler		scaler
src		src
techgig		techgig
tushar_roy/tree		tushar_roy/tree
.gitignore		.gitignore
GFG.java		GFG.java
GraphAL.py		GraphAL.py
NumArray.java		NumArray.java
README.md		README.md
Solution.java		Solution.java
__init__.py		__init__.py
alien_dict.py		alien_dict.py
array_linear_list.py		array_linear_list.py
avl_tree.py		avl_tree.py
bgraph.txt		bgraph.txt
binarySearchTree.py		binarySearchTree.py
bracket_num.py		bracket_num.py
candies_brute_force.py		candies_brute_force.py
candies_one_array.py		candies_one_array.py
candies_single_pass_constant_space.py		candies_single_pass_constant_space.py
candies_two_arrays.py		candies_two_arrays.py
change_arr_len.py		change_arr_len.py

s-surineni/atice

Folders and files

Latest commit

History

Repository files navigation

LeetCode Topics

Depth-First Search

Breadth-First Search

Union Find

Graph

Array

Hash Table

String

Counting

Simulation

Design

Heap (Priority Queue)

Ordered Set

Math

Stack

Backtracking

Greedy

Tree

Binary Tree

Dynamic Programming

Prefix Sum

Two Pointers

Matrix

Number Theory

Sliding Window

Binary Search

Bit Manipulation

Topological Sort

Shortest Path

About

Resources

Uh oh!

Stars

Watchers

Forks

Releases

Packages 0

Uh oh!

Contributors 2

Uh oh!

Languages

Packages