[Solved] Identify the error in this nested loop code:for(int i=0; i<2; i++) { for(int j=0; j<2; j++) printf("%d %d\n", i, j); i++;} | C

C - Loops

Identify the error in this nested loop code:

for(int i=0; i<2; i++) {
  for(int j=0; j<2; j++)
    printf("%d %d\n", i, j);
    i++;
}

AInner loop condition should be j<3 instead of j<2.

BMissing semicolon after printf statement.

CModifying loop variable 'i' inside the inner loop causes unexpected behavior.

DThe outer loop should be a while loop instead of for loop.

Step-by-Step Solution

Solution:

Step 1: Analyze loop variables
Variable 'i' is the outer loop counter, 'j' is inner loop counter.
Step 2: Check for modifications inside loops
Inside inner loop, 'i++' modifies outer loop counter unexpectedly.
Step 3: Understand impact
Changing 'i' inside inner loop disrupts loop control, causing skipped iterations or infinite loops.
Final Answer:
Modifying loop variable 'i' inside the inner loop causes unexpected behavior. -> Option C
Quick Check:
Do not modify outer loop variable inside inner loop [OK]

Quick Trick: Avoid changing outer loop variable inside inner loop [OK]

Common Mistakes:

Master "Loops" in C

9 interactive learning modes - each teaches the same concept differently

More C Quizzes

Identify the error in this nested loop code: