Python - While Loop
What will be the output of this code?
i = 1
while i <= 3:
print(i)
i *= 2What will be the output of this code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Trace the loop iterations
i=1 (1<=3 true), print 1, i*=2 ->2; i=2 (2<=3 true), print 2, i*=2 ->4; i=4 (4<=3 false), end.Step 2: Confirm printed values
Values printed are 1 and 2; 4 is assigned but loop ends before printing 4.Final Answer:
1 2 -> Option AQuick Check:
Loop variable update and condition checked each iteration [OK]
Quick Trick: Multiply loop variable carefully to avoid skipping exit [OK]
Common Mistakes:
MISTAKES- Assuming 4 is printed after condition fails
- Confusing loop exit condition
- Not tracing variable updates correctly
Master "While Loop" in Python
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