public/subjects/strlen.md

## strlen

### Instructions

Write a function that returns the length of a string.

- `len` is forbidden

### Expected function and structure

```go
func Strlen(str string) int {

}
```

And its output :

```console
student@ubuntu:~/piscine/test$ go build
student@ubuntu:~/piscine/test$ ./test
4
student@ubuntu:~/piscine/test$
```
Change titles format `sed -i 's/^\(#\+\) /\1# /' *.md` 5 years ago			`## strlen`
quest11 quest10 and quest8 5 years ago
Change titles format `sed -i 's/^\(#\+\) /\1# /' *.md` 5 years ago			`### Instructions`
quest11 quest10 and quest8 5 years ago
			`Write a function that returns the length of a string.`

fix errors and normalize style in subjects 5 years ago			- `len` is forbidden
quest11 quest10 and quest8 5 years ago
Change titles format `sed -i 's/^\(#\+\) /\1# /' *.md` 5 years ago			`### Expected function and structure`
quest11 quest10 and quest8 5 years ago
			```go
			`func Strlen(str string) int {`

			`}`
			```

			`And its output :`

			```console
			`student@ubuntu:~/piscine/test$ go build`
			`student@ubuntu:~/piscine/test$ ./test`
			`4`
			`student@ubuntu:~/piscine/test$`
			```