Gymnastics

package main

import "fmt"

func main() {
    var country, device string
    fmt.Scanln(&country)
    fmt.Scanln(&device)

    difficulty := 0.0
    performance := 0.0

    if country == "Russia" {
        if device == "ribbon" {
            difficulty = 9.100
            performance = 9.400
        } else if device == "hoop" {
            difficulty = 9.300
            performance = 9.800
        } else if device == "rope" {
            difficulty = 9.600
            performance = 9.000
        }
    } else if country == "Bulgaria" {
        if device == "ribbon" {
            difficulty = 9.600
            performance = 9.400
        } else if device == "hoop" {
            difficulty = 9.550
            performance = 9.750
        } else if device == "rope" {
            difficulty = 9.500
            performance = 9.400
        }
    } else if country == "Italy" {
        if device == "ribbon" {
            difficulty = 9.200
            performance = 9.500
        } else if device == "hoop" {
            difficulty = 9.450
            performance = 9.350
        } else if device == "rope" {
            difficulty = 9.700
            performance = 9.150
        }
    }

    score := difficulty + performance

    fmt.Printf("The team of %s get %.3f on %s.\n%.2f%%\n", country, score, device, (20 - score) * 5)
}

ИЛИ:

package main

import "fmt"

func main() {
    var country, device string
    fmt.Scanln(&country)
    fmt.Scanln(&device)

    difficulty := 0.0
    performance := 0.0

    switch country {
    case "Russia":
        switch device {
        case "ribbon":
            difficulty = 9.100
            performance = 9.400
        case "hoop":
            difficulty = 9.300
            performance = 9.800
        case "rope":
            difficulty = 9.600
            performance = 9.000
        }
    case "Bulgaria":
        switch device {
        case "ribbon":
            difficulty = 9.600
            performance = 9.400
        case "hoop":
            difficulty = 9.550
            performance = 9.750
        case "rope":
            difficulty = 9.500
            performance = 9.400
        }
    case "Italy":
        switch device {
        case "ribbon":
            difficulty = 9.200
            performance = 9.500
        case "hoop":
            difficulty = 9.450
            performance = 9.350
        case "rope":
            difficulty = 9.700
            performance = 9.150
        }
    }

    score := difficulty + performance

    fmt.Printf("The team of %s get %.3f on %s.\n%.2f%%\n", country, score, device, (20 - score) * 5)
}