プログラミング出題サイト用

escanner.go

package main

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

func main() {
	scanner := NewEScanner()
	ints := eAtois(strings.Split(scanner.GetLine(), " "))
	for _, v := range ints {
		fmt.Println(v)
	}
}
func eAtois(words []string) []int {
	integers := make([]int, len(words))
	for i := range integers {
		integers[i] = eAtoi(words[i])
	}
	return integers
}
func eAtoi(s string) int {
	var (
		n   int
		err error
	)
	if n, err = strconv.Atoi(s); err != nil {
		os.Exit(1)
	}
	return n
}

// EScanner bufio.Scanner の操作からエラー処理を除去
type EScanner bufio.Scanner

// NewEScanner EScanner作成
func NewEScanner() *EScanner {
	return (*EScanner)(bufio.NewScanner(os.Stdin))
}

// GetLine 1行取得
func (p *EScanner) GetLine() string {
	(*bufio.Scanner)(p).Scan()
	if err := (*bufio.Scanner)(p).Err(); err != nil {
		os.Exit(1)
	}
	return (*bufio.Scanner)(p).Text()
}