Task

Write a player for the game that follows the following rules:

The scorer will choose a number between set limits. The computer player will print a guess of the target number. The computer asks for a score of whether its guess is higher than, lower than, or equal to the target. The computer guesses, and the scorer scores, in turn, until the computer correctly guesses the target number.
The computer should guess intelligently based on the accumulated scores given. One way is to use a Binary search based algorithm.



Related tasks

   Guess the number/With Feedback
   Bulls and cows/Player


package main
 
import (
    "fmt"
    "sort"
)
 
func main() {
    lower, upper := 0, 100
    fmt.Printf(`Instructions:
Think of integer number from %d (inclusive) to %d (exclusive) and
I will guess it. After each guess, I will ask you if it is less than
or equal to some number, and you will respond with "yes" or "no".
`, lower, upper)
    answer := sort.Search(upper-lower, func (i int) bool {
        fmt.Printf("Is your number less than or equal to %d? ", lower+i)
        s := ""
        fmt.Scanf("%s", &s)
        return s != "" && s[0] == 'y'
    })
    fmt.Printf("Your number is %d.\n", lower+answer)
}