[Solved] What is the output of this C code?for (int i = 1; i <= 2; i++) { for (int j = 1; j <= 3; j++) { printf("%d%d ", i, j); }} | C

C - Loops

What is the output of this C code?

for (int i = 1; i <= 2; i++) {
  for (int j = 1; j <= 3; j++) {
    printf("%d%d ", i, j);
  }
}

A12 13 21 23

B11 12 13 21 22 23

C123 123

D11 21 12 22 13 23

Step-by-Step Solution

Solution:

Step 1: Trace outer loop iterations
Outer loop runs i=1 and i=2.
Step 2: Trace inner loop for each outer iteration
For i=1, inner loop prints 11 12 13; for i=2, inner loop prints 21 22 23.
Final Answer:
11 12 13 21 22 23 -> Option B
Quick Check:
Nested loops print pairs in order [OK]

Quick Trick: Outer loop controls first digit, inner loop second digit [OK]

Common Mistakes:

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