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55 lines
833 B

package main
import (
student "student"
"lib"
"lib/is"
)
func isPositive(i int) bool {
return i > 0
}
func isNegative(i int) bool {
return i < 0
}
func _map(f func(int) bool, a []int) []bool {
result := make([]bool, len(a))
for i, el := range a {
result[i] = f(el)
}
return result
}
func main() {
functions := []func(int) bool{isPositive, isNegative, is.Prime}
type node struct {
f func(int) bool
a []int
}
table := []node{}
for i := 0; i < 15; i++ {
function := functions[lib.RandIntBetween(0, len(functions)-1)]
val := node{
f: function,
a: lib.MultRandIntBetween(-1000000, 1000000),
}
table = append(table, val)
}
table = append(table, node{
f: is.Prime,
a: []int{1, 2, 3, 4, 5, 6},
})
for _, arg := range table {
lib.Challenge("Map", student.Map, _map, arg.f, arg.a)
}
}