Leetcode JobHunt study

Question 1

https://leetcode.com/problems/two-sum

Answer 1

see leetcode

Question 2

https://leetcode.com/problems/best-time-to-buy-and-sell-stock/

Answer 2

see leetcode

Question 3

https://leetcode.com/problems/valid-parentheses/

Answer 3

see leetcode

Question 4

https://leetcode.com/problems/number-of-islands/

Answer 4

see leetcode

Question 5

https://leetcode.com/problems/merge-intervals/

Answer 5

see leetcode

Question 6

https://leetcode.com/problems/kth-largest-element-in-an-array/

Answer 6

see leetcode

Question 7

https://leetcode.com/problems/maximum-subarray/

Answer 7

see leetcode

Question 8

https://leetcode.com/problems/lru-cache

Answer 8

see leetcode

Question 9

https://leetcode.com/problems/add-two-numbers

Answer 9

see leetcode

Question 10

https://leetcode.com/problems/basic-calculator-ii

Answer 10

see leetcode

Question 11

https://leetcode.com/problems/reverse-linked-list/

Answer 11

see leetcode

Question 12

https://leetcode.com/problems/reverse-integer/

Answer 12

see leetcode

Question 13

https://leetcode.com/problems/merge-two-sorted-lists/

Answer 13

see leetcode

Question 14

https://leetcode.com/problems/palindrome-linked-list/

Answer 14

see leetcode

Question 15

https://leetcode.com/problems/longest-palindromic-substring/

Answer 15

see leetcode

Question 16

https://leetcode.com/problems/symmetric-tree/

Answer 16

see leetcode

Question 17

https://leetcode.com/problems/spiral-matrix/

Answer 17

see leetcode