Name		Name	Last commit message	Last commit date
100-same-tree		100-same-tree
1005-univalued-binary-tree		1005-univalued-binary-tree
101-symmetric-tree		101-symmetric-tree
1016-subarray-sums-divisible-by-k		1016-subarray-sums-divisible-by-k
1018-largest-perimeter-triangle		1018-largest-perimeter-triangle
1019-squares-of-a-sorted-array		1019-squares-of-a-sorted-array
102-binary-tree-level-order-traversal		102-binary-tree-level-order-traversal
103-binary-tree-zigzag-level-order-traversal		103-binary-tree-zigzag-level-order-traversal
1031-add-to-array-form-of-integer		1031-add-to-array-form-of-integer
1035-cousins-in-binary-tree		1035-cousins-in-binary-tree
1037-minimum-number-of-k-consecutive-bit-flips		1037-minimum-number-of-k-consecutive-bit-flips
1039-find-the-town-judge		1039-find-the-town-judge
104-maximum-depth-of-binary-tree		104-maximum-depth-of-binary-tree
1046-max-consecutive-ones-iii		1046-max-consecutive-ones-iii
1054-complement-of-base-10-integer		1054-complement-of-base-10-integer
106-construct-binary-tree-from-inorder-and-postorder-traversal		106-construct-binary-tree-from-inorder-and-postorder-traversal
107-binary-tree-level-order-traversal-ii		107-binary-tree-level-order-traversal-ii
1079-sum-of-root-to-leaf-binary-numbers		1079-sum-of-root-to-leaf-binary-numbers
108-convert-sorted-array-to-binary-search-tree		108-convert-sorted-array-to-binary-search-tree
109-convert-sorted-list-to-binary-search-tree		109-convert-sorted-list-to-binary-search-tree
11-container-with-most-water		11-container-with-most-water
111-minimum-depth-of-binary-tree		111-minimum-depth-of-binary-tree
1112-find-words-that-can-be-formed-by-characters		1112-find-words-that-can-be-formed-by-characters
1115-valid-boomerang		1115-valid-boomerang
112-path-sum		112-path-sum
113-path-sum-ii		113-path-sum-ii
114-flatten-binary-tree-to-linked-list		114-flatten-binary-tree-to-linked-list
1145-number-of-submatrices-that-sum-to-target		1145-number-of-submatrices-that-sum-to-target
1146-greatest-common-divisor-of-strings		1146-greatest-common-divisor-of-strings
116-populating-next-right-pointers-in-each-node		116-populating-next-right-pointers-in-each-node
118-pascals-triangle		118-pascals-triangle
12-integer-to-roman		12-integer-to-roman
1206-corporate-flight-bookings		1206-corporate-flight-bookings
1207-delete-nodes-and-return-forest		1207-delete-nodes-and-return-forest
1219-longest-well-performing-interval		1219-longest-well-performing-interval
1227-number-of-equivalent-domino-pairs		1227-number-of-equivalent-domino-pairs
1256-rank-transform-of-an-array		1256-rank-transform-of-an-array
127-word-ladder		127-word-ladder
128-longest-consecutive-sequence		128-longest-consecutive-sequence
129-sum-root-to-leaf-numbers		129-sum-root-to-leaf-numbers
1293-three-consecutive-odds		1293-three-consecutive-odds
1297-maximum-number-of-balloons		1297-maximum-number-of-balloons
1341-split-a-string-in-balanced-strings		1341-split-a-string-in-balanced-strings
1349-check-if-it-is-a-straight-line		1349-check-if-it-is-a-straight-line
137-single-number-ii		137-single-number-ii
138-copy-list-with-random-pointer		138-copy-list-with-random-pointer
139-word-break		139-word-break
142-linked-list-cycle-ii		142-linked-list-cycle-ii
143-reorder-list		143-reorder-list
144-binary-tree-preorder-traversal		144-binary-tree-preorder-traversal
1440-convert-integer-to-the-sum-of-two-no-zero-integers		1440-convert-integer-to-the-sum-of-two-no-zero-integers
1450-delete-leaves-with-a-given-value		1450-delete-leaves-with-a-given-value
1458-sort-integers-by-the-number-of-1-bits		1458-sort-integers-by-the-number-of-1-bits
1468-check-if-n-and-its-double-exist		1468-check-if-n-and-its-double-exist
1472-increasing-decreasing-string		1472-increasing-decreasing-string
148-sort-list		148-sort-list
1498-find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree		1498-find-a-corresponding-node-of-a-binary-tree-in-a-clone-of-that-tree
15-3sum		15-3sum
151-reverse-words-in-a-string		151-reverse-words-in-a-string
153-find-minimum-in-rotated-sorted-array		153-find-minimum-in-rotated-sorted-array
154-find-minimum-in-rotated-sorted-array-ii		154-find-minimum-in-rotated-sorted-array-ii
16-3sum-closest		16-3sum-closest
160-intersection-of-two-linked-lists		160-intersection-of-two-linked-lists
1603-running-sum-of-1d-array		1603-running-sum-of-1d-array
162-find-peak-element		162-find-peak-element
1642-water-bottles		1642-water-bottles
165-compare-version-numbers		165-compare-version-numbers
166-fraction-to-recurring-decimal		166-fraction-to-recurring-decimal
167-two-sum-ii-input-array-is-sorted		167-two-sum-ii-input-array-is-sorted
17-letter-combinations-of-a-phone-number		17-letter-combinations-of-a-phone-number
171-excel-sheet-column-number		171-excel-sheet-column-number
1731-even-odd-tree		1731-even-odd-tree
1817-calculate-money-in-leetcode-bank		1817-calculate-money-in-leetcode-bank
1833-find-the-highest-altitude		1833-find-the-highest-altitude
187-repeated-dna-sequences		187-repeated-dna-sequences
189-rotate-array		189-rotate-array
19-remove-nth-node-from-end-of-list		19-remove-nth-node-from-end-of-list
191-number-of-1-bits		191-number-of-1-bits
1916-find-center-of-star-graph		1916-find-center-of-star-graph
199-binary-tree-right-side-view		199-binary-tree-right-side-view
2-add-two-numbers		2-add-two-numbers
200-number-of-islands		200-number-of-islands
201-bitwise-and-of-numbers-range		201-bitwise-and-of-numbers-range
203-remove-linked-list-elements		203-remove-linked-list-elements
2048-build-array-from-permutation		2048-build-array-from-permutation
205-isomorphic-strings		205-isomorphic-strings
206-reverse-linked-list		206-reverse-linked-list
209-minimum-size-subarray-sum		209-minimum-size-subarray-sum
21-merge-two-sorted-lists		21-merge-two-sorted-lists
210-course-schedule-ii		210-course-schedule-ii
2121-find-if-path-exists-in-graph		2121-find-if-path-exists-in-graph
215-kth-largest-element-in-an-array		215-kth-largest-element-in-an-array
2174-next-greater-numerically-balanced-number		2174-next-greater-numerically-balanced-number
2215-finding-3-digit-even-numbers		2215-finding-3-digit-even-numbers
2216-delete-the-middle-node-of-a-linked-list		2216-delete-the-middle-node-of-a-linked-list
224-basic-calculator		224-basic-calculator
2244-number-of-laser-beams-in-a-bank		2244-number-of-laser-beams-in-a-bank
226-invert-binary-tree		226-invert-binary-tree
227-basic-calculator-ii		227-basic-calculator-ii
229-majority-element-ii		229-majority-element-ii

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DSA

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Leetcode DSA probelms and their explanations

binary-search dynamic-programming graph greedy heapsort linked-list number-theory sorting-algorithms

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