C#.NET — Trace nested loops and 2-D array assignments to predict output. Program: namespace CuriousTabConsoleApplication { class SampleProgram { static void Main(string[] args) { int i, j; int[ , ] arr = new int[2, 2]; for (i = 0; i < 2; ++i) { for (j = 0; j < 2; ++j) { arr[i, j] = i * 17 + i * 17; Console.Write(arr[i, j] + " "); } } } } }

Introduction / Context:
This output-tracing problem checks your ability to follow nested for loops, compute assigned values, and notice that the formula depends only on i, not j. The array is 2×2, and values are printed as they are assigned.

Given Data / Assumptions:

• arr is 2 rows × 2 columns.
• arr[i, j] = i * 17 + i * 17 = 34 * i.
• Print order follows i increasing outer, j increasing inner.

Concept / Approach:
Compute per row: for i = 0, all entries are 0; for i = 1, all entries are 34. The inner loop prints each assignment immediately, so the sequence is row 0 values, then row 1 values.

Step-by-Step Solution:

Verification / Alternative check:
Note that j does not appear in the right-hand side, so columns within a row are identical.

Why Other Options Are Wrong:
They use 17s, all zeros, or reverse ordering that does not match the loop progression.

Common Pitfalls:
Accidentally using i * 17 + j * 17, or assuming row-major printing reverses order (it does not here).

Final Answer:
0 0 34 34