How many times does the loop execute? for(int i = 0; i < 3; i++) { printf('Hello '); }
Understand the Problem
The question is asking how many times a given loop will execute based on the provided code snippet in C. The loop iterates starting from 0 to 2, so it will execute a total of 3 times.
Answer
The loop executes $3$ times.
Answer for screen readers
The loop executes $3$ times.
Steps to Solve
- Identify the Loop Parameters
The loop is initialized with int i = 0. It continues to execute as long as the condition i < 3 is true, and i is incremented by 1 in each iteration.
- Determine Loop Execution
The loop starts at i = 0 and will continue until i reaches 3. The values i takes during execution will be:
- First iteration:
i = 0 - Second iteration:
i = 1 - Third iteration:
i = 2
- Calculate Total Executions
The loop stops executing once i equals 3. Therefore, the loop executes for the values 0, 1, and 2, resulting in a total of 3 iterations.
The loop executes $3$ times.
More Information
The loop starts at 0 and iterates up to but not including 3. Each iteration prints "Hello", demonstrating how for-loops work in C.
Tips
- Miscounting the number of iterations by forgetting that the loop condition must be strictly less than the upper limit.
- Assuming the loop does not execute based on confusing the iterations with the indices starting at 1 instead of 0.
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