const rl = require("readline").createInterface({ input: process.stdin }); var iter = rl[Symbol.asyncIterator](); const readline = async () => (await iter.next()).value; void async function () { // Write your code here while(line = await readline()){ // console.log(line); let inputs=line.split(';') let things={ 'A1':{ price:2, num:0 }, 'A2':{ price:3, num:0 }, 'A3':{ price:4, num:0 }, 'A4':{ price:5, num:0 }, 'A5':{ price:8, num:0 }, 'A6':{ price:6, num:0 }, } let money={ 1:0, 2:0, 5:0, 10:0, } let yue=0 for(let input of inputs){ let ins=input.split(' ') if(ins[0]==='r'){ Object.keys(things).map((item,index)=>{ things[item].num=ins[1].split('-')[index]*1 }) Object.keys(money).map((item,index)=>{ money[item]=ins[2].split('-')[index]*1 }) console.log('S001:Initialization is successful') } if(ins[0]==='p'){ if(['1','2','5','10'].includes(ins[1])){ if(ins[1]*1>2&&ins[1]*1>money[1]+money[2]*2){ console.log('E003:Change is not enough, pay fail') }else if(soldOut(things)){ console.log('E005:All the goods sold out') }else{ money[ins[1]]+=1 yue+=ins[1]*1 console.log(`S002:Pay success,balance=${yue}`) } }else{ console.log('E002:Denomination error') } } if(ins[0]==='b'){ if(things[ins[1]]){ if(things[ins[1]].num===0){ console.log('E007:The goods sold out') }else if(things[ins[1]].price>yue){ console.log('E008:Lack of balance') }else{ yue-=things[ins[1]].price console.log(`S003:Buy success,balance=${yue}`) } }else{ console.log('E006:Goods does not exist') } } if(input==='c'){ if(yue===0){ console.log('E009:Work failure') }else{ c(yue,money) yue=0 } } if(input[0]==='q'){ if(ins[0]==='q'){ if(ins[1]==='0'){ Object.keys(things).map(item=>{ console.log(`${item} ${things[item].price} ${things[item].num}`) }) }else if(ins[1]==='1'){ Object.keys(money).map(item=>{ console.log(`${item} yuan coin number=${money[item]}`) }) }else{ console.log('E010:Parameter error') } }else{ console.log('E010:Parameter error') } } } } }() function soldOut(things){ let bool=true Object.keys(things).map(item=>{ if(things[item].num!==0){ bool=false } }) return bool } function c(yue,money){ let s=yue let list={ 1:0, 2:0, 5:0, 10:0, } let keys=Object.keys(money).reverse(),index=0 while(s>0&&index<keys.length){ if(s>=keys[index]){ if(money[keys[index]]){ s-=keys[index] list[keys[index]]=list[keys[index]]+1 money[keys[index]]=money[keys[index]]-1 }else{ index++ } }else{ index++ } } Object.keys(list).map(item=>{ console.log(`${item} yuan coin number=${list[item]}`) }) }