Go

[egormakarov]

package main

import (
    "fmt";
    "os";
    "bufio";
    "rand";
    "strconv";
    "strings";
)

func read_guess(in chan bool, out chan int) {
    bufreader := bufio.NewReader(os.Stdin);

stop := false;

for ! stop {
        strguess, err := bufreader.ReadString('\n');

if err != nil {
            fmt.Printf("error: %s\n", err.String());
            os.Exit(-1);
        }

// ... but it works!
        strguess = strings.Join(
            strings.Split(strguess, "\n", 0), "" );

guess, err := strconv.Atoi(strguess);

if  err != nil {
            fmt.Printf("what???\n");
        }
        else {
            out <- guess;
            stop = <-in;
        }
    }
}

func main() {
    guess := 0;

_, seed, _ := os.Time();
    rand.Seed(seed);

sklet := rand.Int() % 60 + 45;

fmt.Printf("How old is grandpa?\n");

stopch := make( chan bool );
    readch := make( chan int );

go read_guess( stopch, readch );

for guess != sklet {
        guess = <-readch;

switch {
        case guess < sklet:
            fmt.Printf("more\n");
            stopch <- false
        case guess > sklet:
            fmt.Printf("less\n");
            stopch <- false
        case guess == sklet:
            fmt.Printf("exactly!\n");
            stopch <- true
        }
    }
}