forked from root/public
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
519 B
37 lines
519 B
package main |
|
|
|
import ( |
|
student "student" |
|
|
|
"github.com/01-edu/public/go/tests/lib" |
|
) |
|
|
|
func collatzCountdown(start int) int { |
|
if start <= 0 { |
|
return -1 |
|
} |
|
|
|
steps := 0 |
|
|
|
for start != 1 { |
|
if start%2 == 0 { |
|
start = start / 2 |
|
} else { |
|
start = 3*start + 1 |
|
} |
|
steps++ |
|
} |
|
|
|
return steps |
|
} |
|
|
|
func main() { |
|
args := append(lib.MultRandIntBetween(2, 20), |
|
lib.RandIntBetween(-6, 20), |
|
-5, |
|
0, |
|
) |
|
for _, v := range args { |
|
lib.Challenge("CollatzCountdown", student.CollatzCountdown, collatzCountdown, v) |
|
} |
|
}
|
|
|