How would you access the element in the second row and third column of the following C code snippet: `int arr2d[3][4];`?
Understand the Problem
The question asks how to access a specific element in a 2D array in C. 2D arrays are indexed starting from 0. Therefore, to access the second row, you need to use index 1, and to access the third column, you need to use index 2. The question requires understanding of array indexing in C.
Answer
The element in the second row and third column is accessed using: `arr2d[1][2]`
To access the element in the second row and third column of the C code snippet int arr2d[3][4];, you would use arr2d[1][2]. Remember that array indexing starts at 0.
Answer for screen readers
To access the element in the second row and third column of the C code snippet int arr2d[3][4];, you would use arr2d[1][2]. Remember that array indexing starts at 0.
More Information
In C, 2D arrays are indexed starting from 0. Therefore, the second row has an index of 1, and the third column has an index of 2.
Tips
A common mistake is to forget that C arrays are zero-indexed, leading to off-by-one errors when accessing elements.
Sources
- How can we access elements of two-dimensional arrays in C? - Quora - quora.com
- Which comes first in a 2D array, rows or columns? - Stack Overflow - stackoverflow.com
- Two Dimensional Array in C++ | DigitalOcean - digitalocean.com
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