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Hi!

I post my leetcode daily solutions here!

LeetCode Topics

Hash Table

0142-linked-list-cycle-ii
1331-rank-transform-of-an-array
1358-number-of-substrings-containing-all-three-characters
3312-sorted-gcd-pair-queries
3532-path-existence-queries-in-a-graph-i

String

1081-smallest-subsequence-of-distinct-characters
1358-number-of-substrings-containing-all-three-characters
3499-maximize-active-section-with-trade-i
3501-maximize-active-section-with-trade-ii
3756-concatenate-non-zero-digits-and-multiply-by-sum-ii

Sliding Window

1358-number-of-substrings-containing-all-three-characters

Array

1260-shift-2d-grid
1288-remove-covered-intervals
1301-number-of-paths-with-max-score
1331-rank-transform-of-an-array
1901-find-a-peak-element-ii
1979-find-greatest-common-divisor-of-array
2812-find-the-safest-path-in-a-grid
3286-find-a-safe-walk-through-a-grid
3312-sorted-gcd-pair-queries
3501-maximize-active-section-with-trade-ii
3513-number-of-unique-xor-triplets-i
3514-number-of-unique-xor-triplets-ii
3532-path-existence-queries-in-a-graph-i
3534-path-existence-queries-in-a-graph-ii
3620-network-recovery-pathways
3867-sum-of-gcd-of-formed-pairs

Binary Search

1901-find-a-peak-element-ii
2812-find-the-safest-path-in-a-grid
3312-sorted-gcd-pair-queries
3501-maximize-active-section-with-trade-ii
3532-path-existence-queries-in-a-graph-i
3534-path-existence-queries-in-a-graph-ii
3620-network-recovery-pathways

Matrix

1260-shift-2d-grid
1301-number-of-paths-with-max-score
1901-find-a-peak-element-ii
2812-find-the-safest-path-in-a-grid
3286-find-a-safe-walk-through-a-grid

Breadth-First Search

2492-minimum-score-of-a-path-between-two-cities
2685-count-the-number-of-complete-components
2812-find-the-safest-path-in-a-grid
3286-find-a-safe-walk-through-a-grid

Union-Find

2492-minimum-score-of-a-path-between-two-cities
2685-count-the-number-of-complete-components
2812-find-the-safest-path-in-a-grid
3532-path-existence-queries-in-a-graph-i

Heap (Priority Queue)

2812-find-the-safest-path-in-a-grid
3286-find-a-safe-walk-through-a-grid
3620-network-recovery-pathways

Linked List

0002-add-two-numbers
0061-rotate-list
0142-linked-list-cycle-ii
0148-sort-list

Two Pointers

0061-rotate-list
0142-linked-list-cycle-ii
0148-sort-list
3534-path-existence-queries-in-a-graph-ii
3867-sum-of-gcd-of-formed-pairs

Divide and Conquer

0148-sort-list

Sorting

0148-sort-list
1288-remove-covered-intervals
1331-rank-transform-of-an-array
3534-path-existence-queries-in-a-graph-ii
3867-sum-of-gcd-of-formed-pairs

Merge Sort

0148-sort-list

Math

0002-add-two-numbers
1979-find-greatest-common-divisor-of-array
3312-sorted-gcd-pair-queries
3513-number-of-unique-xor-triplets-i
3514-number-of-unique-xor-triplets-ii
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
3867-sum-of-gcd-of-formed-pairs

Recursion

0002-add-two-numbers

Graph Theory

2492-minimum-score-of-a-path-between-two-cities
2685-count-the-number-of-complete-components
3286-find-a-safe-walk-through-a-grid
3532-path-existence-queries-in-a-graph-i
3534-path-existence-queries-in-a-graph-ii
3620-network-recovery-pathways

Shortest Path

3286-find-a-safe-walk-through-a-grid
3620-network-recovery-pathways

Dynamic Programming

1301-number-of-paths-with-max-score
3534-path-existence-queries-in-a-graph-ii
3620-network-recovery-pathways

Topological Sort

3620-network-recovery-pathways

Depth-First Search

2492-minimum-score-of-a-path-between-two-cities
2685-count-the-number-of-complete-components

Prefix Sum

3312-sorted-gcd-pair-queries
3756-concatenate-non-zero-digits-and-multiply-by-sum-ii

Greedy

1081-smallest-subsequence-of-distinct-characters
3534-path-existence-queries-in-a-graph-ii

Bit Manipulation

3513-number-of-unique-xor-triplets-i
3514-number-of-unique-xor-triplets-ii
3534-path-existence-queries-in-a-graph-ii

Enumeration

1291-sequential-digits
3499-maximize-active-section-with-trade-i
3514-number-of-unique-xor-triplets-ii

Number Theory

1979-find-greatest-common-divisor-of-array
3312-sorted-gcd-pair-queries
3658-gcd-of-odd-and-even-sums
3867-sum-of-gcd-of-formed-pairs

Simulation

1260-shift-2d-grid
3867-sum-of-gcd-of-formed-pairs

Combinatorics

3312-sorted-gcd-pair-queries

Counting

3312-sorted-gcd-pair-queries

Stack

1081-smallest-subsequence-of-distinct-characters

Monotonic Stack

1081-smallest-subsequence-of-distinct-characters

Segment Tree

3501-maximize-active-section-with-trade-ii

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Hi, I post my LeetCode Daily solutions here!

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