Workout

package main

import (
    "fmt"
    "math"
)

func main() {
    var days int
    fmt.Scanln(&days)

    var kilometers, percentage float64
    fmt.Scanln(&kilometers)

    totalKilometers := kilometers

    for i := 0; i < days; i++ {
        fmt.Scanln(&percentage)
        kilometers *= (100 + percentage) / 100
        totalKilometers += kilometers
    }

    if totalKilometers < 1000 {
        fmt.Printf("Sorry Mrs.Ivanova, you need to run %d more kilometers", 1000 - int(totalKilometers))
    } else {
        fmt.Printf("You've done a great job running %d more kilometers!", int(math.Ceil(totalKilometers) - 1000))
    }
}