package main
import (
"fmt"
)
func abs(x int) int {
if x < 0 {
return -x
}
return x
}
func max(x, y int) int {
if x > y {
return x
}
return y
}
func distance(x1, y1, x2, y2 int) int {
return max(abs(x2-x1), abs(y2-y1))
}
func coverPoints(A []int, B []int) int {
steps := 0
for i := 1; i < len(A); i++ {
x1, y1, x2, y2 := A[i-1], B[i-1], A[i], B[i]
steps += distance(x1, y1, x2, y2)
}
return steps
}
func main() {
fmt.Println(coverPoints([]int{4, 8, -7, -5, -13, 9, -7, 8},
[]int{4, -15, -10, -3, -13, 12, 8, -8}))
}
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