There are so many option to do this in Go. For example:
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
fmt.Println(scanner.Text())
}
or
reader := bufio.NewReader(os.Stdin)
text, _ := reader.ReadString('\n')
Neither is working in my case. I am unable to find the reason why new line scan is not working.
Here's the question I'm working on: https://www.hackerrank.com/challenges/30-dictionaries-and-maps
And here's my code:
package main
import (
"fmt"
"bufio"
"os"
"strings"
)
func main() {
var count int
fmt.Scan(&count)
m := make(map[string]string)
for i := 0; i<count; i++{
reader := bufio.NewReader(os.Stdin)
text,err := reader.ReadString('\n')
if err != nil {
fmt.Println(err)
}
value := strings.Fields(text)
m[value[0]] = value[1]
}
var names []string
for i := 0; i<count; i++{
var name string
fmt.Scan(&name)
names = append(names,name)
}
for j:= 0; j<len(names);j++{
if m[names[j]] != ""{
fmt.Println(names[j] +" = "+ m[names[j]])
}else{
fmt.Println("Not found")
}
}
}
It is working in my editor, but when I use the question's input, it doesn't work.
As requested in the comments, here was my working example:
package main
import (
"bufio"
"fmt"
"os"
)
func main() {
phonebook := make(map[string]int)
var count int
fmt.Scan(&count)
for i := 0; i < count; i++ {
var name string
var number int
fmt.Scan(&name, &number)
phonebook[name] = number
}
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
name := scanner.Text()
if number, ok := phonebook[name]; ok {
fmt.Printf("%s=%d\n", name, number)
} else {
fmt.Println("Not found")
}
}
}