Neet Code Problems

Neet Code Solutions

Thinking in z^3

This is a quick introduction to the z^3 language (pronounced as "zcubes language").

ZCubes Language (z^3) is an easy to write, natural to read, omni-functional language.

Learn z^3 Language in detail by clicking this link.

• ZCubes Language Documentation
• z^3 Language Detail
• z^3 Commands and Operators
• Z Functions, Member Functions, etc.

Introduction

Following are z^3 Solutions to YouTube Code Report Channel Videos. To learn how to code in ZCubes language, please visit [https://coding.zcubes.com]. ZCubes Web Platform can be started in Code Mode at [https://code.zcubes.com].

Problems and Solutions

Product of Array Except Self

Video: https://www.youtube.com/watch?v=bNvIQI2wAjk [Product of Array Except Self - Leetcode 238 - Python]

Problem Description:

Given an integer array nums, return an array output where output[i] is the product of all the elements of nums except nums[i].

Each product is guaranteed to fit in a 32-bit integer.

Follow-up: Could you solve it in O ( n ) O(n) time without using the division operation?

Example 1:

Input: nums = [1,2,4,6]

Output: [48,24,12,8] Example 2:

Input: nums = [-1,0,1,2,3]

Output: [0,-6,0,0,0]

z^3 Solution

n=[1,2,4,6];
n⪥n≡∏

Gives answer

24

12

48

24

n=[-1,1,0,-3,3];
n⪥n≡∏

Gives answer:

0

0

0

0

0

Notes: ⪥ is the .around operator on an array, which takes one or more indices from the second argument to give you an array except that index. ≡∏ Product (∏) conducted by row (≡)

n⪥n can be written as n.around(n) also.

Duplicate Integer

Video: https://www.youtube.com/watch?v=3OamzN90kPg [Contains Duplicate - Leetcode 217 - Python]

Problem Description:

Given an integer array nums, return true if any value appears more than once in the array, otherwise return false.

Example 1:

Input: nums = [1, 2, 3, 3]

Output: true Example 2:

Input: nums = [1, 2, 3, 4]

Output: false

z^3 Solution

n=[1,2,3,1];
(n∪).$(x=>n⒤x)

Gives answer

0	3
1
2

Notes: n∪ Uniques of n array .$ Apply function to each element x=>n⒤x Function x, defined as n find indices that contain x ≡ can be used to loop to check greater than 1 etc

n=[1,2,3,1];
((n∪).$(x=>n⒤x)≡(x=>x#>1))▣OR

This approach checks for lengths greater than 1 byrow, and cumuluate with OR over the entire array.

Other Interesting Solutions

• Problems and Solutions
• Neet Code Problems
• CodeReportSolutions

See Related

• Combinators
• Combinators Theory
• Z^3 Language Documentation
• Z^3 Pages Listing