Nhut Nguyen

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C++ Solution to Coding Challenge 1710. Maximum Units on a Truck

Nov 17, 20222 min read 43 views

An example of the greedy algorithm · Problem statement You are assigned to put some amount of boxes onto one truck. You are given a 2D array boxTypes,...

C++ Solution to Coding Challenge 1710. Maximum Units on a Truck

C++ Solution to Coding Challenge 238. Product of Array Except Self

Nov 10, 20223 min read 36 views

An example of the prefix sum technique · Problem statement Given an integer array nums, return an array answer such that answer[i] is equal to the...

C++ Solution to Coding Challenge 238. Product of Array Except Self

C++ Solution to Coding Challenge 462. Minimum Moves to Equal Array Elements II

Oct 27, 20223 min read 26 views

Median - The math behind the problem · Problem statement Given an integer array nums of size n, return the minimum number of moves required to make all...

C++ Solution to Coding Challenge 462. Minimum Moves to Equal Array Elements II

C++ Solution to Coding Challenge 1647. Minimum Deletions to Make Character Frequencies Unique

Oct 20, 20223 min read 16 views

Problem statement A string s is called good if there are no two different characters in s that have the same frequency. Given a string s, return the...

C++ Solution to Coding Challenge 1647. Minimum Deletions to Make Character Frequencies Unique

C++ Solution to Coding Challenge 1423. Maximum Points You Can Obtain from Cards

Oct 13, 20224 min read 15 views

Problem statement There are several cards arranged in a row, and each card has an associated number of points. The points are given in the integer...

C++ Solution to Coding Challenge 1423. Maximum Points You Can Obtain from Cards

C++ Solution to Coding Challenge 59. Spiral Matrix II

Oct 6, 20222 min read 17 views

An example of C++ switch statement · Problem statement Given a positive integer n, generate an n x n matrix filled with elements from 1 to n^2 in spiral...

C++ Solution to Coding Challenge 59. Spiral Matrix II