How many parcels missed the van
Items boarded the van if their ready time is before backstopMinutes. Count how many missed it, so the leftover list can be quoted again.
- ready times are in minutes past midnight.
- An item ready exactly at the backstop still boards.
lateParcels(readyTimes: list<int>, backstopMinutes: int) → int
Go needs a compiler and Drill does not host one yet, so this page is the reference rather than an exercise: the problem, worked examples, and the solution in full. To type it out, the same problem runs in Python.
Where you start
func lateParcels(readyTimes []int, backstopMinutes int) int {
}Worked examples
| Call | Result |
|---|---|
lateParcels([]int{100, 200, 300}, 250) | 1 |
lateParcels([]int{250, 250}, 250) | 0 |
lateParcels([]int{300}, 100) | 1 |
lateParcels([]int{}, 500) | 0 |
Hint
Count the ones that fail the comparison.
Reference solution in Go
func lateParcels(readyTimes []int, backstopMinutes int) int {
n := 0
for _, t := range readyTimes {
if t > backstopMinutes {
n++
}
}
return n
}