Added Len{,64} gives back the number of digits of a number.
This commit is contained in:
parent
29de09a237
commit
d1c3f6619b
@ -62,6 +62,28 @@ func IsPalindromic(n int) bool {
|
||||
return true
|
||||
}
|
||||
|
||||
// Len returns the number of digits of i (base 10, does not include a sign).
|
||||
func Len(i int) int {
|
||||
return Len64(int64(i))
|
||||
}
|
||||
|
||||
// Len64 returns the number of digits of i (base 10, does not include a sign).
|
||||
func Len64(i int64) int {
|
||||
if i == 0 {
|
||||
return 1
|
||||
}
|
||||
if i < 0 {
|
||||
i = 0 - i
|
||||
}
|
||||
|
||||
digits := 0
|
||||
for i > 0 {
|
||||
i /= 10
|
||||
digits++
|
||||
}
|
||||
return digits
|
||||
}
|
||||
|
||||
// Permutations returns all possible permutations of the the set integers.
|
||||
func Permutations(set []int) [][]int {
|
||||
var n = len(set)
|
||||
|
Loading…
Reference in New Issue
Block a user