Array

Arrays, 2D matrices, two pointers & prefix sums

24 Problems

⌘K

#

Problem

Difficulty

Actions

01.

Set Matrix Zeros

Medium

02.

Pascal's Triangle

Easy

03.

Next Permutation

Medium

04.

Kadane's Algorithm

Medium

05.

Sort an array of 0's, 1's, and 2's

Medium

06.

Stock Buy and Sell

Easy

07.

Rotate Matrix

Medium

08.

Merge Overlapping Subintervals

Medium

09.

Merge two sorted Arrays without extra space

Medium

10.

Find the duplicate in an array of N+1 integers

Medium

11.

Repeat and Missing Number

Medium

12.

Inversion of Array

Hard

13.

Search in a 2D Matrix

Medium

14.

Pow(x, n)

Medium

15.

Majority Element (>N/2 times)

Easy

16.

Majority Element (>N/3 times)

Medium

17.

Grid Unique Paths

Medium

18.

Reverse Pairs

Hard

19.

2-Sum Problem

Easy

20.

4-Sum Problem

Medium

21.

Longest Consecutive Sequence

Medium

22.

Largest Subarray with 0 sum

Medium

23.

Count number of subarrays with given XOR

Medium

24.

Longest Substring without repeat

Medium