题解 | #自动售货系统#

自动售货系统

http://www.nowcoder.com/practice/cd82dc8a4727404ca5d32fcb487c50bf

真是写的我头皮发麻!!
# -*- coding: utf-8 -*-
"""
Created on Mon Jan 17 23:05:29 2022

@author: Jack
"""

while True:
    try:
        class shangpin:
            def __init__(self,price,num):
                self.price=price
                self.num=num
                self.su=self.num*self.price
        class money:
            def __init__(self,miane,num):
                self.miane=miane
                self.num=num
            def su(self):
                return self.num * self.miane
        n=input().split(';')
        balance=0
        ini=n[0].split()
        ini[1]=list(map(int,ini[1].split('-')))
        ini[2]=list(map(int,ini[2].split('-')))
        goods=[]
        a1=shangpin(2,ini[1][0])
        goods.append(['A1',a1])
        a2=shangpin(3,ini[1][1])
        a3=shangpin(4, ini[1][2])
        a4=shangpin(5, ini[1][3])
        a5=shangpin(8, ini[1][4])
        a6=shangpin(6, ini[1][5])
        m1=money(1, ini[2][0])
        m2=money(2, ini[2][1])
        m5=money(5, ini[2][2])
        m10=money(10, ini[2][3])
        goods.append(['A2',a2])
        goods.append(['A3',a3])
        goods.append(['A4',a4])
        goods.append(['A5',a5])
        goods.append(['A6',a6])
        print('S001:Initialization is successful')
        for i in n[1:len(n)-1]:
            if i=='c':
                t10=0
                t1=0
                t2=0
                t5=0
                if balance==0:
                    print('E009:Work failure')
                if balance!=0:
                    if balance>=10:
                        for j in range(m10.num+1):
                            if j*10<=balance:
                                t10=max(t10,j)
                        balance=balance-10*t10
                        m10.num=m10.num-t10
                    if balance>=5:
                        for k in range(m5.num+1):
                            if k*5<=balance:
                                t5=max(t5,k)
                        balance=balance-5*t5
                        m5.num=m5.num-t5
                    if balance>=2:
                        for l in range(m2.num+1):
                            if l*2<=balance:
                                t2=max(t2,l)
                        balance=balance-2*t2
                        m2.num=m2.num-t2
                    if balance>=1:
                        for m in range(m1.num+1):
                            if m*1<=balance:
                                t1=max(t1,m)
                        balance=balance-1*t1
                        m1.num=m1.num-t1
                    print('1 yuan coin number=%d' %t1)
                    print('2 yuan coin number=%d' %t2)
                    print('5 yuan coin number=%d' %t5)
                    print('10 yuan coin number=%d' %t10)
            if i[0]=='p':
                tb=i.split()
                if tb[1] not in ['1','2','5','10']:
                    print('E002:Denomination error')
                elif m1.su()+m2.su()<int(tb[1]) and tb[1] not in ['1','2']:
                    print('E003:Change is not enough, pay fail')
                elif tb[1] in ['1','2']:
                    balance+=int(tb[1])
                    print('S002:Pay success,balance=%d' %balance)
                    if tb[1]=='1':
                        m1.num+=1
                    else:
                        m2.num+=1
                elif a1.num==0 and a2.num==0 and a3.num==0 and a4.num==0 and a5.num==0 and a6.num==0:
                    print('E005:All the goods sold out')
                else:
                    balance+=int(tb[1])
                    print('S002:Pay success,balance=%d' %balance)
                    if tb[1]=='10':
                        m10.num+=1
                    else:
                        m5.num+=1
            if i[0]=='b':
                gm=i.split()
                if gm[1] not in ['A1','A2','A3','A4','A5','A6']:
                    print('E006:Goods does not exist')
                for j in range(len(goods)):
                    if gm[1]==goods[j][0]:
                        if goods[j][1].num==0:
                            print('E007:The goods sold out')
                            break
                        elif balance<goods[j][1].price:
                            print('E008:Lack of balance')
                            break
                        else:
                            goods[j][1].num=goods[j][1].num-1
                            balance=balance-goods[j][1].price
                            print('S003:Buy success,balance=%d' %balance)
                            break
            if i in ['q 0','q 1'] and i[0]=='q':
                cx=i
                if cx[1]=='0':
                    print(cx[1])
                    for j in goods:
                        x=''
                        x+=j[0]+' '+str(j[1].price)+' '+str(j[1].num)
                        print(x)
                if cx[1]=='1':
                    print('1 yuan coin number=%d' %m1.num)
                    print('2 yuan coin number=%d' %m2.num)
                    print('5 yuan coin number=%d' %m5.num)
                    print('10 yuan coin number=%d' %m10.num)
            if i[0]=='q' and i not in ['q 0','q 1']:
                print('E010:Parameter error')
                    
    except(EOFError):
        break
        
    


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