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Dan Poynor
Data Analysis Techdegree Graduate 62,952 PointsAlternate way of getting minutes okay?
Instead of
let minutes = (time % 3600) / 60
the solution I came up with was
let minutes = time / 60 % 60
To me this reads left to right
- divide the time in seconds (2390724) by 60 which results in 39845 minutes
- then figure out how many hours are in that result: 39845 % 60 (664 hours which is 39840 minutes)
- then the remainder is how many minutes are left over: 39845 - 39840 = 5
Is there any benefit to solving this one way or the other? Maybe using the larger int 3600 reduces number of computing cycles figuring out how many times a number can go into another number?
Probably not very important when figuring out just one time difference but just curious.
1 Answer
Jess Pugsley
Courses Plus Student 500 PointsI solved the problem this way. Not sure one way or another is important. I'd guess you shouldn't do calculations within your string interpolation. Which is what I took away from this exercise.
let time = 2390724
let seconds = 1
let minutes = 60
let hours = 3600
let result = "\(time) seconds is \(time / hours) hours, \((time % hours) / minutes) minutes and \((time % hours) % minutes) seconds"