shell實現(xiàn)FizzBuzzWhizz問題示例(拉勾網(wǎng)面試題)

更新時間：2014年05月05日 10:46:02 作者：

這篇文章主要介紹了shell實現(xiàn)FizzBuzzWhizz問題示例(拉勾網(wǎng)面試題),需要的朋友可以參考下

試題: https://www.jinshuju.net/f/EGQL3D

語言: Shell (Bash)
運行方式:
sh num-game.sh 數(shù)字1 數(shù)字2 數(shù)字3
如果不想使用傳遞數(shù)字的方式, 可以修改 num-game.sh 第 9 行, 將
NUM=$*
改為
NUM='數(shù)字1 數(shù)字2 數(shù)字3'
然后直接運行 sh num-game.sh 即可

復制代碼代碼如下:

#!/bin/bash

## Author : TaxKiz
## Email : taxkiz@gmail.com

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

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

## 檢查輸入的數(shù)字個數(shù)是否為 3 個
function CT () {
[ $( echo $* | sed 's/ /\n/g' | wc -l ) != '3' ] && echo " Please Enter 3 Number ! " && exit 1
}

CT $NUM

## 個位數(shù)列表
NT='1/2/3/4/5/6/7/8/9'

## 檢查輸入的數(shù)字是否為個位數(shù)
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

## 判斷是否有重復的數(shù)字
function SN () {
    if [ $1 == $2 ] || [ $1 == $3 ] || [ $2 == $3 ]; then
        echo "ERROR! There have same number : '$*'"
        exit 4
    fi
}

SN $NUM

## 大喊一聲
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