Hackerrank.com Sample Go Problem

hello.go

package main

import (
    "fmt"
)

func main() {
    times := readInt()
    for i := 0; i < times; i++ {
        fmt.Println("hello world")
    }
}

func readInt() int {
    var n int
    _, err := fmt.Scanf("%d", &n)

    if err != nil {
        panic(err)
    }

    return n
}