problem/

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

Links

Open Source Insights

Directories ¶

Path	Synopsis
1000_minimum-cost-to-merge-stones
1004_max-consecutive-ones-iii
100_same-tree
1011_capacity-to-ship-packages-within-d-days
1019_next-greater-node-in-linked-list
101_symmetric-tree
1026_maximum-difference-between-node-and-ancestor
102_binary-tree-level-order-traversal
1038_binary-search-tree-to-greater-sum-tree
1039_minimum-score-triangulation-of-polygon
103_binary-tree-zigzag-level-order-traversal
1049_last-stone-weight-ii
104_maximum-depth-of-binary-tree
105_construct-binary-tree-from-preorder-and-inorder-traversal
106_construct-binary-tree-from-inorder-and-postorder-traversal
107_binary-tree-level-order-traversal-ii
1080_insufficient-nodes-in-root-to-leaf-paths
1094_car-pooling
10_regular-expression-matching
1109_corporate-flight-bookings
110_balanced-binary-tree
111_minimum-depth-of-binary-tree
1123_lowest-common-ancestor-of-deepest-leaves
1124_longest-well-performing-interval
112_path-sum
1143_longest-common-subsequence
1155_number-of-dice-rolls-with-target-sum
1156_swap-for-longest-repeated-character-substring
117_populating-next-right-pointers-in-each-node-ii
1185_day-of-the-week
118_pascals-triangle
11_container-with-most-water
1208_get-equal-substrings-within-budget
1222_queens-that-can-attack-the-king
122_best-time-to-buy-and-sell-stock-ii
1234_replace-the-substring-for-balanced-string
123_best-time-to-buy-and-sell-stock-iii
124_binary-tree-maximum-path-sum
125_valid-palindrome
1267_count-servers-that-communicate
1276_number-of-burgers-with-no-waste-of-ingredients
1277_count-square-submatrices-with-all-ones
128_longest-consecutive-sequence
12_integer-to-roman
1312_minimum-insertion-steps-to-make-a-string-palindrome
131_palindrome-partitioning
132_palindrome-partitioning-ii
1334_find-the-city-with-the-smallest-number-of-neighbors-at-a-threshold-distance
1349_maximum-students-taking-exam
136_single-number
1377_frog-position-after-t-seconds
137_single-number-ii
139_word-break
13_roman-to-integer
1402_reducing-dishes
1410_html-entity-parser
141_linked-list-cycle
1423_maximum-points-you-can-obtain-from-cards
142_linked-list-cycle-ii
1438_longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit
143_reorder-list
1457_pseudo-palindromic-paths-in-a-binary-tree
1458_max-dot-product-of-two-subsequences
1465_maximum-area-of-a-piece-of-cake-after-horizontal-and-vertical-cuts
1466_reorder-routes-to-make-all-paths-lead-to-the-city-zero
146_lru-cache
1475_final-prices-with-a-special-discount-in-a-shop
1488_avoid-flood-in-the-city
148_sort-list
1493_longest-subarray-of-1s-after-deleting-one-element
1499_max-value-of-equation
14_longest-common-prefix
1503_last-moment-before-all-ants-fall-out-of-a-plank
153_find-minimum-in-rotated-sorted-array
1547_minimum-cost-to-cut-a-stick
154_find-minimum-in-rotated-sorted-array-ii
155_min-stack
15_3sum
1626_best-team-with-no-conflicts
162_find-peak-element
1631_path-with-minimum-effort
1657_determine-if-two-strings-are-close
1658_minimum-operations-to-reduce-x-to-zero
1670_design-front-middle-back-queue
1671_minimum-number-of-removals-to-make-mountain-array
167_two-sum-ii-input-array-is-sorted
1686_stone-game-vi
1690_stone-game-vii
1696_jump-game-vi
169_majority-element
16_3sum-closest
1726_tuple-with-same-product
1760_minimum-limit-of-balls-in-a-bag
1771_maximize-palindrome-length-from-subsequences
1781_sum-of-beauty-of-all-substrings
179_largest-number
17_letter-combinations-of-a-phone-number
1832_check-if-the-sentence-is-pangram
187_repeated-dna-sequences
188_best-time-to-buy-and-sell-stock-iv
18_4sum
1911_maximum-alternating-subsequence-sum
1921_eliminate-maximum-number-of-monsters
1944_number-of-visible-people-in-a-queue
1954_minimum-garden-perimeter-to-collect-enough-apples
1962_remove-stones-to-minimize-the-total
1964_find-the-longest-valid-obstacle-course-at-each-position
1969_minimum-non-zero-product-of-the-array-elements
1976_number-of-ways-to-arrive-at-destination
198_house-robber
1993_operations-on-tree
199_binary-tree-right-side-view
19_remove-nth-node-from-end-of-list
1_two-sum
2003_smallest-missing-genetic-value-in-each-subtree
2008_maximum-earnings-from-taxi
2034_stock-price-fluctuation
203_remove-linked-list-elements
2048_next-greater-numerically-balanced-number
204_count-primes
206_reverse-linked-list
207_course-schedule
208_implement-trie-prefix-tree
209_minimum-size-subarray-sum
20_valid-parentheses
2103_rings-and-rods
210_course-schedule-ii
2132_stamping-the-grid
2136_earliest-possible-day-of-full-bloom
213_house-robber-ii
215_kth-largest-element-in-an-array
216_combination-sum-iii
2171_removing-minimum-number-of-magic-beans
217_contains-duplicate
2182_construct-string-with-repeat-limit
219_contains-duplicate-ii
21_merge-two-sorted-lists
220_contains-duplicate-iii
2216_minimum-deletions-to-make-array-beautiful
221_maximal-square
222_count-complete-tree-nodes
2240_number-of-ways-to-buy-pens-and-pencils
2246_longest-path-with-different-adjacent-characters
2251_number-of-flowers-in-full-bloom
225_implement-stack-using-queues
226_invert-binary-tree
2276_count-integers-in-intervals
22_generate-parentheses
2300_successful-pairs-of-spells-and-potions
2304_minimum-path-cost-in-a-grid
2312_selling-pieces-of-wood
2316_count-unreachable-pairs-of-nodes-in-an-undirected-graph
232_implement-queue-using-stacks
2336_smallest-number-in-infinite-set
233_number-of-digit-one
2342_max-sum-of-a-pair-with-equal-sum-of-digits
235_lowest-common-ancestor-of-a-binary-search-tree
2368_reachable-nodes-with-restrictions
2369_check-if-there-is-a-valid-partition-for-the-array
236_lowest-common-ancestor-of-a-binary-tree
2376_count-special-integers
237_delete-node-in-a-linked-list
2381_shifting-letters-ii
238_product-of-array-except-self
2397_maximum-rows-covered-by-columns
2398_maximum-number-of-robots-within-budget
239_sliding-window-maximum
23_merge-k-sorted-lists
2406_divide-intervals-into-minimum-number-of-groups
2415_reverse-odd-levels-of-binary-tree
2426_number-of-pairs-satisfying-inequality
2432_the-employee-that-worked-on-the-longest-task
2454_next-greater-element-iv
2466_count-ways-to-build-good-strings
2476_closest-nodes-queries-in-a-binary-search-tree
2477_minimum-fuel-cost-to-report-to-the-capital
2487_remove-nodes-from-linked-list
24_swap-nodes-in-pairs
2511_maximum-enemy-forts-that-can-be-captured
2512_reward-top-k-students
2516_take-k-of-each-character-from-left-and-right
2520_count-the-digits-that-divide-a-number
2525_categorize-box-according-to-criteria
2528_maximize-the-minimum-powered-city
2530_maximal-score-after-applying-k-operations
2537_count-the-number-of-good-subarrays
2538_difference-between-maximum-and-minimum-price-sum
2547_minimum-cost-to-split-an-array
2552_count-increasing-quadruplets
2555_maximize-win-from-two-segments
2558_take-gifts-from-the-richest-pile
2560_house-robber-iv
2562_find-the-array-concatenation-value
2563_count-the-number-of-fair-pairs
2565_subsequence-with-the-minimum-score
2575_find-the-divisibility-array-of-a-string
2576_find-the-maximum-number-of-marked-indices
2578_split-with-minimum-sum
2581_count-number-of-possible-root-nodes
2583_kth-largest-sum-in-a-binary-tree
2585_number-of-ways-to-earn-points
2586_count-the-number-of-vowel-strings-in-range
258_add-digits
2591_distribute-money-to-maximum-children
2594_minimum-time-to-repair-cars
2596_check-knight-tour-configuration
2597_the-number-of-beautiful-subsets
259_3sum-smaller
25_reverse-nodes-in-k-group
2600_k-items-with-the-maximum-sum
2602_minimum-operations-to-make-all-array-elements-equal
2605_form-smallest-number-from-two-digit-arrays
2606_find-the-substring-with-maximum-cost
2609_find-the-longest-balanced-substring-of-a-binary-string
260_single-number-iii
2616_minimize-the-maximum-difference-of-pairs
2617_minimum-number-of-visited-cells-in-a-grid
2641_cousins-in-binary-tree-ii
2645_minimum-additions-to-make-valid-string
2646_minimize-the-total-price-of-the-trips
2652_sum-multiples
2653_sliding-subarray-beauty
2656_maximum-sum-with-exactly-k-elements
2660_determine-the-winner-of-a-bowling-game
2661_first-completely-painted-row-or-column
2670_find-the-distinct-difference-array
2673_make-costs-of-paths-equal-in-a-binary-tree
2681_power-of-heroes
2684_maximum-number-of-moves-in-a-grid
2696_minimum-string-length-after-removing-substrings
2697_lexicographically-smallest-palindrome
2698_find-the-punishment-number-of-an-integer
26_remove-duplicates-from-sorted-array
2706_buy-two-chocolates
2707_extra-characters-in-a-string
2718_sum-of-matrix-after-queries
2719_count-of-integers
2730_find-the-longest-semi-repetitive-substring
2731_movement-of-robots
2735_collecting-chocolates
2736_maximum-sum-queries
2742_painting-the-walls
2744_find-maximum-number-of-string-pairs
274_h-index
275_h-index-ii
2760_longest-even-odd-subarray-with-threshold
2761_prime-pairs-with-target-sum
2762_continuous-subarrays
2765_longest-alternating-subarray
2767_partition-string-into-minimum-beautiful-substrings
2770_maximum-number-of-jumps-to-reach-the-last-index
2771_longest-non-decreasing-subarray-from-two-arrays
2772_apply-operations-to-make-all-array-elements-equal-to-zero
2779_maximum-beauty-of-an-array-after-applying-operation
2786_visit-array-positions-to-maximize-score
2787_ways-to-express-an-integer-as-sum-of-powers
2788_split-strings-by-separator
2799_count-complete-subarrays-in-an-array
279_perfect-squares
27_remove-element
2807_insert-greatest-common-divisors-in-linked-list
2808_minimum-seconds-to-equalize-a-circular-array
2824_count-pairs-whose-sum-is-less-than-target
2825_make-string-a-subsequence-using-cyclic-increments
2826_sorting-three-groups
2827_number-of-beautiful-integers-in-the-range
2828_check-if-a-string-is-an-acronym-of-words
2830_maximize-the-profit-as-the-salesman
2831_find-the-longest-equal-subarray
2834_find-the-minimum-possible-sum-of-a-beautiful-array
283_move-zeroes
2841_maximum-sum-of-almost-unique-subarray
2845_count-of-interesting-subarrays
2861_maximum-number-of-alloys
2864_maximum-odd-binary-number
2865_beautiful-towers-i
2866_beautiful-towers-ii
2867_count-valid-paths-in-a-tree
2874_maximum-value-of-an-ordered-triplet-ii
2875_minimum-size-subarray-in-infinite-array
2896_apply-operations-to-make-two-strings-equal
2901_longest-unequal-adjacent-groups-subsequence-ii
2905_find-indices-with-index-and-value-difference-ii
2906_construct-product-matrix
2909_minimum-sum-of-mountain-triplets-ii
290_word-pattern
2915_length-of-the-longest-subsequence-that-sums-to-target
2919_minimum-increment-operations-to-make-array-beautiful
2925_maximum-score-after-applying-operations-on-a-tree
2929_distribute-candies-among-children-ii
292_nim-game
2943_maximize-area-of-square-hole-in-grid
2944_minimum-number-of-coins-for-fruits
2948_make-lexicographically-smallest-array-by-swapping-elements
2949_count-beautiful-substrings-ii
2953_count-complete-substrings
2958_length-of-longest-subarray-with-at-most-k-frequency
2962_count-subarrays-where-max-element-appears-at-least-k-times
2976_minimum-cost-to-convert-string-i
2999_count-the-number-of-powerful-integers
2_add-two-numbers
3007_maximum-number-that-sum-of-the-prices-is-less-than-or-equal-to-k
300_longest-increasing-subsequence
3015_count-the-number-of-houses-at-a-certain-distance-i
301_remove-invalid-parentheses
3020_find-the-maximum-number-of-elements-in-subset
303_range-sum-query-immutable
306_additive-number
307_range-sum-query-mutable
309_best-time-to-buy-and-sell-stock-with-cooldown
315_count-of-smaller-numbers-after-self
318_maximum-product-of-word-lengths
322_coin-change
327_count-of-range-sum
332_reconstruct-itinerary
337_house-robber-iii
33_search-in-rotated-sorted-array
342_power-of-four
343_integer-break
344_reverse-string
34_find-first-and-last-position-of-element-in-sorted-array
354_russian-doll-envelopes
35_search-insert-position
365_water-and-jug-problem
367_valid-perfect-square
36_valid-sudoku
375_guess-number-higher-or-lower-ii
376_wiggle-subsequence
377_combination-sum-iv
37_sudoku-solver
382_linked-list-random-node
383_ransom-note
387_first-unique-character-in-a-string
38_count-and-say
394_decode-string
39_combination-sum
3_longest-substring-without-repeating-characters
402_remove-k-digits
409_longest-palindrome
40_combination-sum-ii
410_split-array-largest-sum
415_add-strings
416_partition-equal-subset-sum
41_first-missing-positive
421_maximum-xor-of-two-numbers-in-an-array
424_longest-repeating-character-replacement
429_n-ary-tree-level-order-traversal
42_trapping-rain-water
435_non-overlapping-intervals
438_find-all-anagrams-in-a-string
445_add-two-numbers-ii
447_number-of-boomerangs
449_serialize-and-deserialize-bst
454_4sum-ii
456_132-pattern
46_permutations
474_ones-and-zeroes
47_permutations-ii
48_rotate-image
491_non-decreasing-subsequences
493_reverse-pairs
494_target-sum
496_next-greater-element-i
4_median-of-two-sorted-arrays
500_keyboard-row
503_next-greater-element-ii
509_fibonacci-number
50_powx-n
513_find-bottom-left-tree-value
514_freedom-trail
516_longest-palindromic-subsequence
518_coin-change-ii
51_n-queens
523_continuous-subarray-sum
525_contiguous-array
52_n-queens-ii
539_minimum-time-difference
53_maximum-subarray
543_diameter-of-binary-tree
547_number-of-provinces
560_subarray-sum-equals-k
567_permutation-in-string
56_merge-intervals
583_delete-operation-for-two-strings
589_n-ary-tree-preorder-traversal
58_length-of-last-word
5_longest-palindromic-substring
611_valid-triangle-number
62_unique-paths
630_course-schedule-iii
63_unique-paths-ii
649_dota2-senate
64_minimum-path-sum
66_plus-one
670_maximum-swap
673_number-of-longest-increasing-subsequence
67_add-binary
687_longest-univalue-path
689_maximum-sum-of-3-non-overlapping-subarrays
69_sqrtx
6_zigzag-conversion
704_binary-search
70_climbing-stairs
712_minimum-ascii-delete-sum-for-two-strings
713_subarray-product-less-than-k
714_best-time-to-buy-and-sell-stock-with-transaction-fee
715_range-module
71_simplify-path
72_edit-distance
739_daily-temperatures
73_set-matrix-zeroes
745_prefix-and-suffix-search
746_min-cost-climbing-stairs
75_sort-colors
765_couples-holding-hands
76_minimum-window-substring
77_combinations
784_letter-case-permutation
78_subsets
79_word-search
7_reverse-integer
828_count-unique-characters-of-all-substrings-of-a-given-string
82_remove-duplicates-from-sorted-list-ii
834_sum-of-distances-in-tree
837_new-21-game
83_remove-duplicates-from-sorted-list
842_split-array-into-fibonacci-sequence
84_largest-rectangle-in-histogram
861_score-after-flipping-matrix
862_shortest-subarray-with-sum-at-least-k
876_middle-of-the-linked-list
889_construct-binary-tree-from-preorder-and-postorder-traversal
88_merge-sorted-array
891_sum-of-subsequence-widths
8_string-to-integer-atoi
901_online-stock-span
902_numbers-at-most-n-given-digit-set
904_fruit-into-baskets
907_sum-of-subarray-minimums
90_subsets-ii
92_reverse-linked-list-ii
938_range-sum-of-bst
93_restore-ip-addresses
94_binary-tree-inorder-traversal
968_binary-tree-cameras
96_unique-binary-search-trees
974_subarray-sums-divisible-by-k
977_squares-of-a-sorted-array
97_interleaving-string
987_vertical-order-traversal-of-a-binary-tree
98_validate-binary-search-tree
993_cousins-in-binary-tree
9_palindrome-number
Algorithms_give-gem
Algorithms_magic-tower
Algorithms_min-count
Algorithms_reverse-pairs
LCCI_find-longest-subarray
codeforces
1689/c
luogu
p1352
p2458

?	: This menu
/	: Search site
f or F	: Jump to
y or Y	: Canonical URL