On Repeat Exercise

Question

Hello guys,

I'm so happy to learn on this platform. I've chosen Go to start with and I have a question for one of the exercises on the platform called "On Repeat".

Can somebody more experienced by me tell where am I wrong:

package main
import "fmt"

func main() {
var w string
fmt.Scanln(&w)
var x int
fmt.Scanln(&x)

func repeat(w,x) {

for i=1; i <=x; i++ {

w*=x
}
repeat(w,x)
}
}

I get the followint error:
./prog.go:11:7: syntax error: unexpected repeat, expecting (

Thanks in advance,

Dido

Answer 1

Dido Grigorov

Your function definition is wrong. You have to define data type in function parameters. So It should be like this:

func repeat(w string, x int) {
for i := 1; i <= x; i++ {

fmt.Println(w)
}
}

Answer 2

Dido Grigorov

make repeat function outside the main function then call inside main function.

You have to print w multiple times so don't multiply with x just print w

Answer 3

Dido Grigorov

Instead of multiplying w with x just print w inside loop.

Answer 4

You are amazing man! Thanks a lot! :)

Answer 5

Can you make a code example for me please?

Answer 6

package main
import "fmt"

func repeat(w,x) {

for i=1; i<=x; i++ {

fmt.Println(w)
}
}

func main() {
var w string
fmt.Scanln(&w)
var x int
fmt.Scanln(&x)

repeat(w,x)

}

And now I get:

# command-line-arguments
/usercode/file0.go:4:13: undefined: w
/usercode/file0.go:4:15: undefined: x
/usercode/file0.go:6:6: undefined: i
/usercode/file0.go:6:14: undefined: x
/usercode/file0.go:6:17: undefined: i
/usercode/file0.go:8:15: undefined: w

Answer 7

Dido Grigorov

If you want to solve problem using recursion then you can do like this:

func repeat (w string, x int) {
if x <= 0 {
return
} else {
fmt.Println(w)
x = x - 1
repeat (w, x)
}