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subjects/numofdigits/README.md

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+## number of digits
+
+### Instructions
+
+Write a function that returns the number of digits in a positive integer n.
+- if the number is negative returns 0.
+
+### Expected function
+
+```go
+func Numofdigits(num int) int {
+
+}
+```
+
+### Usage
+
+Here is a possible program to test your function:
+
+```go
+package main
+
+import (
+	"fmt"
+)
+
+func main() {
+	fmt.Println(Numofdigits(3))
+	fmt.Println(Numofdigits(245))
+	fmt.Println(Numofdigits(-1))
+	fmt.Println(Numofdigits(885))
+	fmt.Println(Numofdigits(8574))
+}
+```
+
+And its output :
+
+```console
+$ go run .
+1
+3
+0
+3
+4