1376. Time Needed to Inform All Employees [Medium]
https://leetcode.com/problems/time-needed-to-inform-all-employees/
#tree #depth_first_search #breadth_first_search
#google #amazon #bloomberg #adobe

0:00 - Умова задачі.
3:05 - Побудова дерева.
5:00 - Паттерн…

547. Number of Provinces [Medium]
https://leetcode.com/problems/number-of-provinces/
#depth_first_search #breadth_first_search #union_find #graph #matrix
#amazon #bloomberg #doordash #apple #twitter #two_sigma #uber #goldman_sachs #google

0:00 - Проблеми…

1502. Can Make Arithmetic Progression From Sequence [Easy]
https://leetcode.com/problems/can-make-arithmetic-progression-from-sequence/
#array #sorting
#amazon

0:00 - Умова задачі.
1:55 - Сортування. https://leetcode.com/problems/can-make-arithmetic-progression…

1351. Count Negative Numbers in a Sorted Matrix [Easy]
https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix/
#array #binary_search #matrix
#amazon #uber #Microsoft #yahoo #facebook #snapchat

0:00 - Умова задачі.
1:30 - Повний перебір…

744. Find Smallest Letter Greater Than Target [Easy]
https://leetcode.com/problems/find-smallest-letter-greater-than-target/
#array #binary_search
#amazon #linkedin #bloomberg

0:00 - Умова задачі.
1:20 - Лінійний пошук.
2:15 - Двійковий пошук.
4:15 - upper_bound.

530. Minimum Absolute Difference in BST [Easy]
https://leetcode.com/problems/minimum-absolute-difference-in-bst/
#tree #depth_first_search #breadth_first_search #binary_search_tree #binary_tree
#amazon #google #facebook

0:00 - Умова задачі.
1:55 - O(n log…

1161. Maximum Level Sum of a Binary Tree [Medium]
https://leetcode.com/problems/maximum-level-sum-of-a-binary-tree/
#tree #depth_first_search #breadth_first_search #binary_tree
#facebook #microsoft #google #amazon #oracle

0:00 - Умова задачі.
: - Пошук у…

1575. Count All Possible Routes [Hard]
https://leetcode.com/problems/count-all-possible-routes/
#array #dynamic_programming #memoization
#amazon

373. Find K Pairs with Smallest Sums [Medium]
https://leetcode.com/problems/find-k-pairs-with-smallest-sums/
#array #heap #priority_queue
#amazon #google #microsoft #linkedin #apple #facebook #adobe #uber

Черга з пріоритетом. https://leetcode.com/problems/find…

137. Single Number II [Medium]
https://leetcode.com/problems/single-number-ii/
#array #bit_manipulation
#google #amazon #apple #adobe #bloomberg
#python

0:00 - Умова задачі
1:35 - Хеш-таблиця. https://leetcode.com/problems/single-number-ii/submissions/986069354/…

209. Minimum Size Subarray Sum [Medium]
https://leetcode.com/problems/minimum-size-subarray-sum/
#array #binary_search #sliding_window #prefix_sum
#apple #citadel #amazon #microsoft #goldman_sachs #facebook #google #bloomberg #bytedance #adobe #yahoo #arcesium…

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In this video i'm going to walk you through all of the must-know Python 'list' features. What is a…