Write a for loop to iterate through the numbers 1 to 20

Question

BlackTom AI · Accepted Answer

The task presents a simple programming question about a for loop to iterate through the numbers 1 to 20. Let's evaluate each option in turn.
Option 1: 'for(int i =1; i<=20; i++)' This loop starts at i = 1, continues while i <= 20, and increments i by 1 each iteration. This exactly covers the integers from 1 through 20 inclusive, which matches the requirement. Therefore, this option is correct for the stated range.
Option 2: 'for(int i =1; i<20; i++)' Here the loop condition uses i < 20, which means the loop runs while i is less than 20. The values of i would be 1 through 19, excluding 20. Since the goal is to include 20 in the sequence, this option fails to reach the upper bound and is incorrect for the requested range.
Option 3: 'for(int i =1; i<=19; i++)' In this variant, the loop stops at i <= 19, so the values covered are 1 through 19, missing 20 entirely. This does not satisfy the requirement to iterate up to 20, making it incorrect.
Option 4: 'None of the option given' This choice would be true only if none of the provided options correctly implement a loop from 1 to 20. Since Option 1 does indeed accomplish that, this statement is false.
In summary, Option 1 correctly implements a loop that visits all integers from 1 to 20 inclusive, while Options 2 and 3 terminate early before reaching 20, and Option 4 contradicts the presence of a valid option.

EPRO001 Week 3 Concept Check

Write a for loop to iterate through the numbers 1 to 20

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