Problem 55965. Where the Four Corners Am I? (Vectorized)

NOTE: this problem is intended to build on problem #55960 ("Where the Four Corners Am I?"). You may wish to solve that problem first, then use your solution as a starting point for this problem.
The "Four Corners" region of the US is where Colorado, Utah, Arizona, and New Mexico all meet - the only place where four states touch. The Four Corners Monument itself is on Navajo land.
Given vectors of coordinates x and y, return a column vector of strings, where each string is one of five options according to the location of that element:
  • If and , then return "NN"
  • Otherwise, if x & y are both positive, return "CO",
  • if x is negative and y is positive, return "UT",
  • if x & y are both negative, return "AZ",
  • if x is positive and y is negative, return "NM"
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30.77% Correct | 69.23% Incorrect
Last Solution submitted on Nov 06, 2025

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