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Victor Ngo
8,324 Points[False Alarm] Possible Error on Challenge 3 of 4
I think there's an error on this challenge. It asks to assign a number to the first index of an array. I did what it told me to but still had a red flag.
6 Answers
Patrick Donahue
9,523 PointsThat is weird.
So I did the challenge over and I got the same error. So to get passed it I changed float math_constants[1] to math_constants[3] and it worked. Not sure what the error really is.
Patrick Donahue
9,523 PointsCan you post your code please?
Victor Ngo
8,324 PointsChallenge task 3 of 4
Assign the number 1.41421 to index 1 of math_constants.
My Code: float math_constants[1]; math_constants[0] = 2.71828; math_constants[1] = 1.41421;
And the response I got was: Bummer! As a reminder, arrays are 'zero-based'. Assigning a number to an array would look something like: name_of_array[0] = 1;
Victor Ngo
8,324 PointsChanging float math_constants[1] to math_constants[2] worked as well. Woohoo! Got the badge! Thanks for the post :D
Patrick Donahue
9,523 PointsSo I looked it up - in C the number in brackets is the amount of array places. Since we had [1] - that means there is only math_constants[0].
Example: char arr[4];// for accommodating 3 characters and one null '\0' byte.
Victor Ngo
8,324 PointsOh, I thought when you initialize an array, that the number in brackets started counting elements from the zeroth element. Thanks for clearing that up!
Patrick Donahue
9,523 PointsNo problem! I needed a refresher on C arrays!