欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  网络运营

shell实现FizzBuzzWhizz问题示例(拉勾网面试题)

程序员文章站 2022-10-13 22:23:47
试题: https://www.jinshuju.net/f/egql3d 语言: shell (bash)运行方式:sh num-game.sh 数字1 数字2 数字3...

试题: https://www.jinshuju.net/f/egql3d

语言: shell (bash)
运行方式:
sh num-game.sh 数字1 数字2 数字3
如果不想使用传递数字的方式, 可以修改 num-game.sh 第 9 行, 将
num=$*
改为
num='数字1 数字2 数字3'
然后直接运行 sh num-game.sh 即可

复制代码 代码如下:

#!/bin/bash

## author : taxkiz
## email  : taxkiz@gmail.com

export path='/bin:/sbin:/usr/bin:/usr/sbin'

## num='3 5 7'
num=$*

## 检查输入的数字个数是否为 3 个
function ct () {
    [ $( echo $* | sed 's/ /\n/g' | wc -l ) != '3' ] && echo " please enter 3 number ! " && exit 1
}

ct $num

## 个位数列表
nt='1/2/3/4/5/6/7/8/9'

## 检查输入的数字是否为个位数
function ck () {
    for num in $*
    do
        [ $num == '0' ] && echo "error number '$num'" && exit 2
        echo $nt | grep "\b$num\b" > /dev/null 2>&1
        [ $? != '0' ] && echo "$num is not a single digit" && exit 3
    done
}

ck $num

## 判断是否有重复的数字
function sn () {
    if [ $1 == $2 ] || [ $1 == $3 ] || [ $2 == $3 ]; then
        echo "error! there have same number : '$*'"
        exit 4
    fi
}

sn $num

## 大喊一声
function go () {

    a1=$1
    a2=$2
    a3=$3

    t1=$(( $1 * $2 ))
    t2=$(( $1 * $3 ))
    t3=$(( $2 * $3 ))

    ta=$(( $1 * $2 * $3 ))

    for num in {1..100}
    do
        echo $num | grep $a1 > /dev/null 2>&1
        [ $? == '0' ] && echo 'fizz' && continue

        echo "scale=2; $num/$ta" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'fizzbuzzwhizz' && continue

        echo "scale=2; $num/$t1" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'fizzbuzz' && continue

        echo "scale=2; $num/$t2" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'buzzwhizz' && continue

        echo "scale=2; $num/$t3" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'fizzwhizz' && continue

        echo "scale=2; $num/$a1" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'fizz' && continue

        echo "scale=2; $num/$a2" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'buzz' && continue

        echo "scale=2; $num/$a3" | bc | grep 00 > /dev/null 2>&1
        [ $? == '0' ] && echo 'whizz' && continue

        echo $num

    done
}

go $num