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0001-two-sum
0001-two-sum
 
 
0011-container-with-most-water
0011-container-with-most-water
 
 
0015-3sum
0015-3sum
 
 
0033-search-in-rotated-sorted-array
0033-search-in-rotated-sorted-array
 
 
0053-maximum-subarray
0053-maximum-subarray
 
 
0098-validate-binary-search-tree
0098-validate-binary-search-tree
 
 
0101-symmetric-tree
0101-symmetric-tree
 
 
0121-best-time-to-buy-and-sell-stock
0121-best-time-to-buy-and-sell-stock
 
 
0152-maximum-product-subarray
0152-maximum-product-subarray
 
 
0153-find-minimum-in-rotated-sorted-array
0153-find-minimum-in-rotated-sorted-array
 
 
0167-two-sum-ii-input-array-is-sorted
0167-two-sum-ii-input-array-is-sorted
 
 
0217-contains-duplicate
0217-contains-duplicate
 
 
0219-contains-duplicate-ii
0219-contains-duplicate-ii
 
 
0238-product-of-array-except-self
0238-product-of-array-except-self
 
 
0303-range-sum-query-immutable
0303-range-sum-query-immutable
 
 
0525-contiguous-array
0525-contiguous-array
 
 
0560-subarray-sum-equals-k
0560-subarray-sum-equals-k
 
 
102-binary-tree-level-order-traversal
102-binary-tree-level-order-traversal
 
 
105-construct-binary-tree-from-preorder-and-inorder-traversal
105-construct-binary-tree-from-preorder-and-inorder-traversal
 
 
106-construct-binary-tree-from-inorder-and-postorder-traversal
106-construct-binary-tree-from-inorder-and-postorder-traversal
 
 
114-flatten-binary-tree-to-linked-list
114-flatten-binary-tree-to-linked-list
 
 
118-pascals-triangle
118-pascals-triangle
 
 
121-best-time-to-buy-and-sell-stock
121-best-time-to-buy-and-sell-stock
 
 
124-binary-tree-maximum-path-sum
124-binary-tree-maximum-path-sum
 
 
128-longest-consecutive-sequence
128-longest-consecutive-sequence
 
 
136-single-number
136-single-number
 
 
138-copy-list-with-random-pointer
138-copy-list-with-random-pointer
 
 
14-longest-common-prefix
14-longest-common-prefix
 
 
141-linked-list-cycle
141-linked-list-cycle
 
 
146-lru-cache
146-lru-cache
 
 
160-intersection-of-two-linked-lists
160-intersection-of-two-linked-lists
 
 
168-excel-sheet-column-title
168-excel-sheet-column-title
 
 
169-majority-element
169-majority-element
 
 
17-letter-combinations-of-a-phone-number
17-letter-combinations-of-a-phone-number
 
 
171-excel-sheet-column-number
171-excel-sheet-column-number
 
 
1866-restore-the-array-from-adjacent-pairs
1866-restore-the-array-from-adjacent-pairs
 
 
189-rotate-array
189-rotate-array
 
 
19-remove-nth-node-from-end-of-list
19-remove-nth-node-from-end-of-list
 
 
1908-recyclable-and-low-fat-products
1908-recyclable-and-low-fat-products
 
 
207-course-schedule
207-course-schedule
 
 
208-implement-trie-prefix-tree
208-implement-trie-prefix-tree
 
 
215-kth-largest-element-in-an-array
215-kth-largest-element-in-an-array
 
 
226-invert-binary-tree
226-invert-binary-tree
 
 
229-majority-element-ii
229-majority-element-ii
 
 
234-palindrome-linked-list
234-palindrome-linked-list
 
 
236-lowest-common-ancestor-of-a-binary-tree
236-lowest-common-ancestor-of-a-binary-tree
 
 
239-sliding-window-maximum
239-sliding-window-maximum
 
 
240-search-a-2d-matrix-ii
240-search-a-2d-matrix-ii
 
 
283-move-zeroes
283-move-zeroes
 
 
31-next-permutation
31-next-permutation
 
 
322-coin-change
322-coin-change
 
 
34-find-first-and-last-position-of-element-in-sorted-array
34-find-first-and-last-position-of-element-in-sorted-array
 
 
347-top-k-frequent-elements
347-top-k-frequent-elements
 
 
35-search-insert-position
35-search-insert-position
 
 
39-combination-sum
39-combination-sum
 
 
3sum
3sum
 
 
40-combination-sum-ii
40-combination-sum-ii
 
 
41-first-missing-positive
41-first-missing-positive
 
 
459-repeated-substring-pattern
459-repeated-substring-pattern
 
 
46-permutations
46-permutations
 
 
48-rotate-image
48-rotate-image
 
 
49-group-anagrams
49-group-anagrams
 
 
51-n-queens
51-n-queens
 
 
53-maximum-subarray
53-maximum-subarray
 
 
54-spiral-matrix
54-spiral-matrix
 
 
543-diameter-of-binary-tree
543-diameter-of-binary-tree
 
 
560-subarray-sum-equals-k
560-subarray-sum-equals-k
 
 
584-find-customer-referee
584-find-customer-referee
 
 
6-zigzag-conversion
6-zigzag-conversion
 
 
60-permutation-sequence
60-permutation-sequence
 
 
62-unique-paths
62-unique-paths
 
 
63-unique-paths-ii
63-unique-paths-ii
 
 
64-minimum-path-sum
64-minimum-path-sum
 
 
74-search-a-2d-matrix
74-search-a-2d-matrix
 
 
75-sort-colors
75-sort-colors
 
 
78-subsets
78-subsets
 
 
79-word-search
79-word-search
 
 
90-subsets-ii
90-subsets-ii
 
 
94-binary-tree-inorder-traversal
94-binary-tree-inorder-traversal
 
 
96-unique-binary-search-trees
96-unique-binary-search-trees
 
 
BFS of graph - GFG
BFS of graph - GFG
 
 
Binary Tree to BST - GFG
Binary Tree to BST - GFG
 
 
Bit Difference - GFG
Bit Difference - GFG
 
 
Check if Tree is Isomorphic - GFG
Check if Tree is Isomorphic - GFG
 
 
Convert array into Zig-Zag fashion - GFG
Convert array into Zig-Zag fashion - GFG
 
 
Count total set bits - GFG
Count total set bits - GFG
 
 
DFS of Graph - GFG
DFS of Graph - GFG
 
 
Find all pairs with a given sum - GFG
Find all pairs with a given sum - GFG
 
 
Find position of set bit - GFG
Find position of set bit - GFG
 
 
First and last occurrences of x - GFG
First and last occurrences of x - GFG
 
 
First negative integer in every window of size k - GFG
First negative integer in every window of size k - GFG
 
 
Fractional Knapsack - GFG
Fractional Knapsack - GFG
 
 
Inorder Successor in BST - GFG
Inorder Successor in BST - GFG
 
 
Job Sequencing Problem - GFG
Job Sequencing Problem - GFG
 
 
Kth largest element in BST - GFG
Kth largest element in BST - GFG
 
 
Largest subarray with 0 sum - GFG
Largest subarray with 0 sum - GFG
 
 
Leaf under budget - GFG
Leaf under budget - GFG
 
 
Longest Common Prefix in an Array - GFG
Longest Common Prefix in an Array - GFG
 
 
Longest Common Subsequence - GFG
Longest Common Subsequence - GFG
 
 
Max Sum Subarray of size K - GFG
Max Sum Subarray of size K - GFG
 
 

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DSA-Leetcode-Practice

Collection of LeetCode questions to ace the coding interview! have fun - happy coding

LeetCode Topics

Array
0001-two-sum
0011-container-with-most-water
0015-3sum
0033-search-in-rotated-sorted-array
0053-maximum-subarray
0121-best-time-to-buy-and-sell-stock
0152-maximum-product-subarray
0153-find-minimum-in-rotated-sorted-array
0167-two-sum-ii-input-array-is-sorted
0217-contains-duplicate
0219-contains-duplicate-ii
0238-product-of-array-except-self
0303-range-sum-query-immutable
0525-contiguous-array
0560-subarray-sum-equals-k

Hash Table
0001-two-sum
0217-contains-duplicate
0219-contains-duplicate-ii
0525-contiguous-array
0560-subarray-sum-equals-k

Prefix Sum
0238-product-of-array-except-self
0303-range-sum-query-immutable
0525-contiguous-array
0560-subarray-sum-equals-k

Design
0303-range-sum-query-immutable

Two Pointers
0011-container-with-most-water
0015-3sum
0167-two-sum-ii-input-array-is-sorted

Binary Search
0033-search-in-rotated-sorted-array
0153-find-minimum-in-rotated-sorted-array
0167-two-sum-ii-input-array-is-sorted

Greedy
0011-container-with-most-water

Sorting
0015-3sum
0217-contains-duplicate

Dynamic Programming
0053-maximum-subarray
0121-best-time-to-buy-and-sell-stock
0152-maximum-product-subarray

Sliding Window
0219-contains-duplicate-ii

Divide and Conquer
0053-maximum-subarray

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Collection of LeetCode questions to ace the coding interview!

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