Day-1:-
https://leetcode.com/problems/monotonic-array/
https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal/
https://leetcode.com/problems/remove-digit-from-number-to-maximize-result/
https://leetcode.com/problems/insert-into-a-binary-search-tree/
Day-2:-
https://leetcode.com/problems/maximum-sum-bst-in-binary-tree/
https://leetcode.com/problems/sliding-window-maximum/
Day-3:-
https://leetcode.com/problems/minimum-difference-between-highest-and-lowest-of-k-scores/
https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/description/
Day-4:-
https://leetcode.com/problems/recover-binary-search-tree/description/
Day-5:-
https://leetcode.com/problems/maximum-average-subarray-i/
https://leetcode.com/problems/range-sum-of-bst/description/
Day-6:-
https://leetcode.com/problems/power-of-three/description/
https://leetcode.com/problems/elimination-game/description/
https://leetcode.com/problems/powx-n/description/
Day-7:-
https://leetcode.com/problems/maximum-twin-sum-of-a-linked-list/
Day-8:-
https://leetcode.com/problems/richest-customer-wealth/description/
https://leetcode.com/problems/n-queens/description/
Day-9:-
https://leetcode.com/problems/n-queens-ii/description/
https://leetcode.com/problems/combination-sum/description/
https://leetcode.com/problems/combinations/description/
https://leetcode.com/problems/combination-sum-ii/description/
https://leetcode.com/problems/transpose-matrix/description/
Day-10:-
https://leetcode.com/problems/combination-sum-iii/
https://leetcode.com/problems/permutations-ii/
Day-11:-
https://leetcode.com/problems/minimum-swaps-to-group-all-1s-together-ii/description/
https://leetcode.com/problems/subarray-product-less-than-k/
Day-12:-
https://leetcode.com/problems/largest-local-values-in-a-matrix/description/
https://leetcode.com/problems/max-consecutive-ones-iii/
https://leetcode.com/problems/delete-greatest-value-in-each-row/description/
https://leetcode.com/problems/row-with-maximum-ones/
Day-13:-
https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix/description/
https://leetcode.com/problems/projection-area-of-3d-shapes/description/
https://leetcode.com/problems/toeplitz-matrix/description/
https://leetcode.com/problems/shift-2d-grid/description/
https://leetcode.com/problems/check-if-matrix-is-x-matrix/description/
https://leetcode.com/problems/find-the-width-of-columns-of-a-grid/description/
https://leetcode.com/problems/special-positions-in-a-binary-matrix/description/
https://leetcode.com/problems/reshape-the-matrix/description/
Day-14:-
https://leetcode.com/problems/lucky-numbers-in-a-matrix/description/
Day-15:-
https://leetcode.com/problems/sort-the-matrix-diagonally/description/
https://leetcode.com/problems/convert-1d-array-into-2d-array/description/
Day-16:-
https://leetcode.com/problems/determine-whether-matrix-can-be-obtained-by-rotation/description/
Day-17:-
https://leetcode.com/problems/sort-array-by-parity-ii/description/
Day-18:-
https://leetcode.com/problems/design-parking-system/description/
Day-19:-
https://leetcode.com/problems/valid-sudoku/description/
Day-20:-
https://leetcode.com/problems/spiral-matrix-iv/description/
Day-21:-
https://leetcode.com/problems/3sum/description/
Day-22:-
https://leetcode.com/problems/spiral-matrix/description/
https://leetcode.com/problems/h-index-ii/description/
Day-23:-
https://leetcode.com/problems/spiral-matrix-ii/description/
https://leetcode.com/problems/maximum-product-of-two-elements-in-an-array/description/
https://leetcode.com/problems/sum-in-a-matrix/description/
Day-24:-
https://leetcode.com/problems/last-stone-weight/description/
https://leetcode.com/problems/take-gifts-from-the-richest-pile/description/
https://leetcode.com/problems/relative-ranks/description/
https://leetcode.com/problems/the-k-weakest-rows-in-a-matrix/description/
https://leetcode.com/problems/largest-number-after-digit-swaps-by-parity/description/
https://leetcode.com/problems/minimum-amount-of-time-to-fill-cups/description/
Day-25:-
https://leetcode.com/problems/sort-an-array/description/
https://leetcode.com/problems/sort-array-by-parity/description/
https://leetcode.com/problems/kth-smallest-element-in-a-sorted-matrix/
Day-26:-
https://leetcode.com/problems/find-score-of-an-array-after-marking-all-elements/description/
https://leetcode.com/problems/convert-bst-to-greater-tree/description/
https://leetcode.com/problems/check-completeness-of-a-binary-tree/description/
https://leetcode.com/problems/binary-search-tree-to-greater-sum-tree/description/
Day-27:-
https://leetcode.com/problems/merge-sorted-array/description/
https://leetcode.com/problems/find-subsequence-of-length-k-with-the-largest-sum/description/
Day-28:-
https://leetcode.com/problems/k-th-smallest-prime-fraction/description/
https://leetcode.com/problems/maximum-product-subarray/description/
Day-29:-
https://leetcode.com/problems/smallest-range-covering-elements-from-k-lists/description/
https://leetcode.com/problems/merge-k-sorted-lists/description/
Day-30:-
https://leetcode.com/problems/remove-duplicates-from-sorted-array/description/
https://leetcode.com/problems/majority-element/
https://leetcode.com/problems/find-the-kth-smallest-sum-of-a-matrix-with-sorted-rows/
Day-31:-
https://leetcode.com/problems/product-of-array-except-self/description/
https://leetcode.com/problems/find-k-closest-elements/
Day-32:-
https://leetcode.com/problems/find-k-pairs-with-smallest-sums/description/
https://leetcode.com/problems/minimum-sum-of-squared-difference/description/
Day-33:-
https://leetcode.com/problems/design-hashset/description/
https://leetcode.com/problems/intersection-of-two-arrays/description/
https://leetcode.com/problems/find-the-difference-of-two-arrays/description/
https://leetcode.com/problems/subarray-sum-equals-k/description/
https://leetcode.com/problems/sum-of-unique-elements/description/
Day-34:-
https://leetcode.com/problems/count-number-of-pairs-with-absolute-difference-k/description/
Day-35:-
https://leetcode.com/problems/4sum/description/
https://leetcode.com/problems/two-sum/description/
Day-36:-
https://leetcode.com/problems/decode-xored-array/description/
https://leetcode.com/problems/number-of-steps-to-reduce-a-number-to-zero/description/
https://leetcode.com/problems/xor-operation-in-an-array/description/
https://leetcode.com/problems/minimum-bit-flips-to-convert-number/description/
https://leetcode.com/problems/hamming-distance/description/
https://leetcode.com/problems/number-complement/
Day-37:-
https://leetcode.com/problems/prime-number-of-set-bits-in-binary-representation/description/
https://leetcode.com/problems/binary-gap/description/
https://leetcode.com/problems/number-of-even-and-odd-bits/description/
https://leetcode.com/problems/binary-number-with-alternating-bits/description/
Day-38:-
https://leetcode.com/problems/power-of-four/
https://leetcode.com/problems/complement-of-base-10-integer/
https://leetcode.com/problems/power-of-two/
https://leetcode.com/problems/find-the-original-array-of-prefix-xor/
https://leetcode.com/problems/maximum-xor-after-operations/
https://leetcode.com/problems/count-number-of-maximum-bitwise-or-subsets/
https://leetcode.com/problems/subsets/
https://leetcode.com/problems/longest-subarray-with-maximum-bitwise-and/
https://leetcode.com/problems/largest-combination-with-bitwise-and-greater-than-zero/
Day-39:-
https://leetcode.com/problems/minimum-flips-to-make-a-or-b-equal-to-c/description/
https://leetcode.com/problems/find-xor-beauty-of-array/description/
Day-40:-
https://leetcode.com/problems/single-number-ii/description/
https://leetcode.com/problems/single-number-iii/description/
https://leetcode.com/problems/neighboring-bitwise-xor/
https://leetcode.com/problems/sum-of-two-integers/
Day-41:-
https://leetcode.com/problems/total-hamming-distance/description/
https://leetcode.com/problems/subsets-ii/
https://leetcode.com/problems/find-the-duplicate-number/
Day-42:-
https://leetcode.com/problems/gray-code/
Day-43:-
https://leetcode.com/problems/balanced-binary-tree/
https://leetcode.com/problems/find-the-distinct-difference-array/description/
https://leetcode.com/problems/maximum-number-of-pairs-in-array/description/
https://leetcode.com/problems/n-repeated-element-in-size-2n-array/description/
https://leetcode.com/problems/unique-number-of-occurrences/description/
https://leetcode.com/problems/find-lucky-integer-in-an-array/description/
Day:-44
https://leetcode.com/problems/missing-number/description/
https://leetcode.com/problems/find-subarrays-with-equal-sum/
Day:-45
https://leetcode.com/problems/distribute-candies/
https://leetcode.com/problems/merge-two-2d-arrays-by-summing-values/description/
https://leetcode.com/problems/number-of-unequal-triplets-in-array/description/
Day:-46
https://leetcode.com/problems/most-frequent-number-following-key-in-an-array/
https://leetcode.com/problems/two-out-of-three/
Day:-47
https://leetcode.com/problems/rank-transform-of-an-array/
https://leetcode.com/problems/contains-duplicate-ii/
https://leetcode.com/problems/number-of-equivalent-domino-pairs/description/
Day:-48
https://leetcode.com/problems/longest-harmonious-subsequence/description/
https://leetcode.com/problems/continuous-subarray-sum/
Day:-49
https://leetcode.com/problems/check-if-the-number-is-fascinating/
https://leetcode.com/problems/most-frequent-even-element/
https://leetcode.com/problems/set-mismatch/
https://leetcode.com/problems/minimum-common-value/
Day:-50
https://leetcode.com/problems/roman-to-integer/description/
Day:-51
https://leetcode.com/problems/check-if-n-and-its-double-exist/
https://leetcode.com/problems/finding-3-digit-even-numbers/
https://leetcode.com/problems/convert-an-array-into-a-2d-array-with-conditions/
https://leetcode.com/problems/find-the-prefix-common-array-of-two-arrays/
https://leetcode.com/problems/left-and-right-sum-differences/description/
Day:-52
https://leetcode.com/problems/set-matrix-zeroes/description/
Day:-53
https://leetcode.com/problems/count-number-of-nice-subarrays/description/
https://leetcode.com/problems/find-all-duplicates-in-an-array/description/
https://leetcode.com/problems/linked-list-components/description/
Day:-54
https://leetcode.com/problems/restore-the-array-from-adjacent-pairs/
https://leetcode.com/problems/count-number-of-distinct-integers-after-reverse-operations/
Day:-55
https://leetcode.com/problems/tuple-with-same-product/
https://leetcode.com/problems/find-all-lonely-numbers-in-the-array/
https://leetcode.com/problems/divide-players-into-teams-of-equal-skill/
Day:-56
https://leetcode.com/problems/maximum-erasure-value/description/
Day:-57
https://leetcode.com/problems/minimum-absolute-difference/
https://leetcode.com/problems/neither-minimum-nor-maximum/
Day:-58
https://leetcode.com/problems/find-the-distance-value-between-two-arrays/
https://leetcode.com/problems/squares-of-a-sorted-array/
Day:-59
https://leetcode.com/problems/third-maximum-number/description/
Day:-60
https://leetcode.com/problems/largest-number-at-least-twice-of-others/description/
Day:-61
https://leetcode.com/problems/count-elements-with-strictly-smaller-and-greater-elements/
https://leetcode.com/problems/maximum-product-of-three-numbers/
Day:-62
https://leetcode.com/problems/find-the-value-of-the-partition/description/
Day:-63
https://leetcode.com/problems/remove-duplicates-from-sorted-array-ii/description/
Day:-64
https://leetcode.com/problems/find-numbers-with-even-number-of-digits/description/
Day:-65
https://leetcode.com/problems/plus-one/description/
Day:-66
https://leetcode.com/problems/flip-columns-for-maximum-number-of-equal-rows/description/
https://leetcode.com/problems/replace-elements-in-an-array/description/
Day:-67
https://leetcode.com/problems/valid-palindrome/
https://leetcode.com/problems/reverse-string/
Day:-68
https://leetcode.com/problems/widest-vertical-area-between-two-points-containing-no-points/
Day:-69
https://leetcode.com/problems/reveal-cards-in-increasing-order/description/
https://leetcode.com/problems/reverse-integer/description/
Day:-70
https://leetcode.com/problems/reverse-words-in-a-string/
https://leetcode.com/problems/remove-palindromic-subsequences/
https://leetcode.com/problems/goal-parser-interpretation/
https://leetcode.com/problems/replace-all-digits-with-characters/
https://leetcode.com/problems/time-needed-to-buy-tickets/
Day:-71
https://leetcode.com/problems/remove-trailing-zeros-from-a-string/
https://leetcode.com/problems/determine-color-of-a-chessboard-square/
https://leetcode.com/problems/generate-a-string-with-characters-that-have-odd-counts/
https://leetcode.com/problems/count-the-number-of-vowel-strings-in-range/
Day:-72
https://leetcode.com/problems/reverse-words-in-a-string-iii/
https://leetcode.com/problems/sorting-the-sentence/
https://leetcode.com/problems/check-if-the-sentence-is-pangram/
Day:-73
https://leetcode.com/problems/to-lower-case/
https://leetcode.com/problems/sort-the-people/
Day:-74
https://leetcode.com/problems/truncate-sentence/description/
https://leetcode.com/problems/merge-in-between-linked-lists/description/
https://leetcode.com/problems/delete-node-in-a-linked-list/description/
https://leetcode.com/problems/count-asterisks/description/
Day:-75
https://leetcode.com/problems/merge-strings-alternately/
https://leetcode.com/problems/number-of-strings-that-appear-as-substrings-in-word/
https://leetcode.com/problems/number-of-senior-citizens/
https://leetcode.com/problems/longest-substring-without-repeating-characters/
Day:-76
https://leetcode.com/problems/valid-anagram/
Day:-77
https://leetcode.com/problems/linked-list-cycle-ii/
https://leetcode.com/problems/reverse-prefix-of-word/
Day:-78
https://leetcode.com/problems/alternating-digit-sum/description/
https://leetcode.com/problems/sum-multiples/description/
https://leetcode.com/problems/subtract-the-product-and-sum-of-digits-of-an-integer/
Day:-79
https://leetcode.com/problems/destination-city/description/
https://leetcode.com/problems/determine-if-string-halves-are-alike/description/
https://leetcode.com/problems/counting-words-with-a-given-prefix/description/
https://leetcode.com/problems/jewels-and-stones/description/
https://leetcode.com/problems/check-if-all-characters-have-equal-number-of-occurrences/description/
https://leetcode.com/problems/lexicographically-smallest-palindrome/
Day:-80
https://leetcode.com/problems/check-if-word-equals-summation-of-two-words/
https://leetcode.com/problems/first-letter-to-appear-twice/
https://leetcode.com/problems/delete-columns-to-make-sorted/
https://leetcode.com/problems/merge-nodes-in-between-zeros/
Day:-81
https://leetcode.com/problems/check-if-number-has-equal-digit-count-and-digit-value/
https://leetcode.com/problems/decrypt-string-from-alphabet-to-integer-mapping/
https://leetcode.com/problems/copy-list-with-random-pointer/
Day:-82
https://leetcode.com/problems/decode-the-message/description/
https://leetcode.com/problems/substrings-of-size-three-with-distinct-characters/description/
https://leetcode.com/problems/kth-distinct-string-in-an-array/description/
https://leetcode.com/problems/path-crossing/description/
https://leetcode.com/problems/delete-characters-to-make-fancy-string/description/
Day:-83
https://leetcode.com/problems/letter-combinations-of-a-phone-number/
Day:-84
https://leetcode.com/problems/word-break/
https://leetcode.com/problems/add-two-numbers-ii/description/
Day:-85
https://leetcode.com/problems/unique-binary-search-trees-ii/description/
https://leetcode.com/problems/add-two-numbers/
Day:-86
https://leetcode.com/problems/number-of-music-playlists/description/
Day:-87
https://leetcode.com/problems/search-a-2d-matrix/description/
Day:-88
https://leetcode.com/problems/remove-zero-sum-consecutive-nodes-from-linked-list/
https://leetcode.com/problems/search-in-rotated-sorted-array/
Day:-89
https://leetcode.com/problems/insert-greatest-common-divisors-in-linked-list/
https://leetcode.com/problems/rotate-list/description/
https://leetcode.com/problems/swapping-nodes-in-a-linked-list/description/
https://leetcode.com/problems/find-the-minimum-and-maximum-number-of-nodes-between-critical-points/
https://leetcode.com/problems/minimize-the-maximum-difference-of-pairs/
Day:-90
https://leetcode.com/problems/search-in-rotated-sorted-array-ii/
https://leetcode.com/problems/maximum-number-of-words-you-can-type/
Day:-91
https://leetcode.com/problems/shortest-distance-to-a-character/
https://leetcode.com/problems/split-strings-by-separator/
https://leetcode.com/problems/minimize-string-length/
https://leetcode.com/problems/coin-change-ii/
https://leetcode.com/problems/count-prefixes-of-a-given-string/
https://leetcode.com/problems/check-if-all-as-appears-before-all-bs/
https://leetcode.com/problems/fizz-buzz/
Day:-92
https://leetcode.com/problems/keyboard-row/description/
https://leetcode.com/problems/unique-paths-ii/
Day:-93
https://leetcode.com/problems/count-common-words-with-one-occurrence/description/
https://leetcode.com/problems/check-if-there-is-a-valid-partition-for-the-array/description/
https://leetcode.com/problems/minimum-string-length-after-removing-substrings/
https://leetcode.com/problems/find-words-that-can-be-formed-by-characters/
Day:-94
https://leetcode.com/problems/count-pairs-of-similar-strings/
Day:-95
https://leetcode.com/problems/uncommon-words-from-two-sentences/
https://leetcode.com/problems/greatest-english-letter-in-upper-and-lower-case/
https://leetcode.com/problems/partition-list/
https://leetcode.com/problems/check-if-numbers-are-ascending-in-a-sentence/
Day:-96
https://leetcode.com/problems/divide-a-string-into-groups-of-size-k/
Day:-97
https://leetcode.com/problems/01-matrix/description/
Day:-98
https://leetcode.com/problems/maximal-network-rank/description/
Day:-99
https://leetcode.com/problems/find-critical-and-pseudo-critical-edges-in-minimum-spanning-tree/
Day:-100
https://leetcode.com/problems/sort-items-by-groups-respecting-dependencies/
//challange completed Happy coding !