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42 lines
654 B

package solutions
func IsSortedBy1(a, b int) int {
if a-b < 0 {
return -1
} else if a-b > 0 {
return 1
}
return 0
}
func IsSortedBy10(a, b int) int {
if a-b < 0 {
return -10
} else if a-b > 0 {
return 10
}
return 0
}
func IsSortedByDiff(a, b int) int {
return a - b
}
func IsSorted(f func(int, int) int, arr []int) bool {
ascendingOrdered := true
descendingOrdered := true
for i := 1; i < len(arr); i++ {
if !(f(arr[i-1], arr[i]) >= 0) {
ascendingOrdered = false
}
}
for i := 1; i < len(arr); i++ {
if !(f(arr[i-1], arr[i]) <= 0) {
descendingOrdered = false
}
}
return ascendingOrdered || descendingOrdered
}