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What is wrong with this code?

medium📝 Debug Q7 of 15
NumPy - Indexing and Slicing
What is wrong with this code?
import numpy as np
arr = np.array([[1,2],[3,4],[5,6]])
print(arr[3,0])
AIndexError: row index out of range
BSyntaxError: invalid syntax
CTypeError: wrong index type
DPrints 5
Step-by-Step Solution
Solution:
  1. Step 1: Check array shape and indices

    Array shape is (3,2), so valid row indices are 0,1,2. Index 3 is invalid.
  2. Step 2: Identify error

    Accessing arr[3,0] causes IndexError due to invalid row index.
  3. Final Answer:

    IndexError: row index out of range -> Option A
  4. Quick Check:

    IndexError if row index exceeds array size [OK]
Quick Trick: Rows start at 0, max index is rows-1 [OK]
Common Mistakes:
  • Using row index equal to number of rows
  • Confusing row and column indices
  • Ignoring error messages

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