JP Morgan summer intern OA-Data and Analytics – 一亩三分地 – OA 代写 – 面试代码 – 面试辅助

1. Character Reprogramming

A control device has 4 buttons that can be used to move a character around a screen in 4 directions: Up (U), Down (D), Left (L), and Right (R). The movement needs to be optimized by deleting unnecessary instructions while maintaining the same destination. Given the original set of instructions, what is the maximum number of instructions that can be deleted and still have the character reach the destination?

Note: The instructions that are deleted do not need to be contiguous.

Example:

  • Input: s = 'URDR'
  • Explanation: The character starts at the initial position and ends 2 units to the right. By deleting U and D, the remaining instructions R and R still result in the same destination.
  • Output: 2

2. Duplicated Products

You are given a complex list of n products, each with a name, price, and weight. Find out how many duplicate products are present within the list. Duplicate products contain identical parameters for all fields in the list (i.e., name, price, and weight).

Example:

  • Input:n = 5 name = [ball, bat, glove, glove, glove] price = [2, 3, 1, 2, 1] weight = [2, 5, 1, 1, 1]
  • Explanation: There are two duplicate products:
    • The first duplicate is glove with price = 1 and weight = 1.
    • The second duplicate is also glove with price = 1 and weight = 1.
  • Output: 2

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