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.

1802. Maximum Value at a Given Index in a Bounded Array [Medium]
https://leetcode.com/problems/maximum-value-at-a-given-index-in-a-bounded-array/
#binary_search #greedy
#oracle #microsoft

0:00 - Умова задачі.
2:00 - Візуалізація.
7:10 - Двійковий пошук.…

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…

1569. Number of Ways to Reorder Array to Get Same BST [Hard]
https://leetcode.com/problems/number-of-ways-to-reorder-array-to-get-same-bst/
#array #math #divide_and_conquer #dynamic_programming #tree #union_find #binary_search_tree #memoization #combinatorics…

1187. Make Array Strictly Increasing [Hard]
https://leetcode.com/problems/make-array-strictly-increasing/
#array #binary_search #dynamic_programming #sorting

0:00 - Умова задачі
3:20 - Динамічне програмування
10:55 - Двійковий пошук. https://leetcode.c…

2448. Minimum Cost to Make Array Equal [Hard]
https://leetcode.com/problems/minimum-cost-to-make-array-equal/
#array #binary_search #greedy #sorting #prefix_sum
#cisco

0:00 - Умова задачі
2:10 - Задача про медіану
5:00 - Опуклість і похідна
7:10 - Точка…

1027. Longest Arithmetic Subsequence [Medium]
https://leetcode.com/problems/longest-arithmetic-subsequence/
#array #hash_table #binary_search #dynamic_programming
#microsoft #apple #samsung #adobe #google #facebook #uber

0:00 - Умова задачі
2:30 - Псев…

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…

In this video, I give you a brief overview of Data Structures and Algorithms in just 12 minutes. I've worked at a FAANG company for years now and I did have to use DSA to get in. I figured it would be great to share this with everyone in a quick digestible…