题解 | 取近似值

package main

import (
	"bufio"
	"fmt"
	// "math"
	"os"
)

func getInput() float64 {
    reader := bufio.NewReader(os.Stdin)
    var n float64
    fmt.Fscan(reader, &n)
    return n
}

func main() {
    n := getInput()
    // fmt.Println(math.Round(n))
    number := n - float64(int(n))
    if number * 10 >= 5 {
        fmt.Println(int(n) + 1)
    } else {
        fmt.Println(int(n))
    }
}