acm 1005 纸币问题

1.1005

2.

[align=left]Problem Description[/align]
"Yakexi, this is the best age!" Dong MW works hard and get high pay, he has many 1 Jiao and 5 Jiao banknotes(纸币), some day he went to a bank and changes part of his money into 1 Yuan, 5 Yuan, 10 Yuan.(1 Yuan = 10 Jiao)

"Thanks to the best age, I can buy many things!" Now Dong MW has a book to buy, it costs P Jiao. He wonders how many banknotes at least,and how many banknotes at most he can use to buy this nice book. Dong MW is a bit strange, he doesn't like to get the change,
that is, he will give the bookseller exactly P Jiao.

[align=left]Input[/align]
T(T<=100) in the first line, indicating the case number. T lines with 6 integers each: P a1 a5 a10 a50 a100 ai means number of i-Jiao banknotes. All integers are smaller than 1000000.

[align=left]Output[/align]
Two integers A,B for each case, A is the fewest number of banknotes to buy the book exactly, and B is the largest number to buy exactly.If Dong MW can't buy the book with no change, output "-1 -1".

[align=left]Sample Input[/align]

3
33 6 6 6 6 6
10 10 10 10 10 10
11 0 1 20 20 20

[align=left]Sample Output[/align]

6 9
1 10
-1 -1

3.有五种钱币的数量：1,5,10,50,100，要求找出钱数固定的两种方案，一种数量最多，一种数量最少

4.手上所有的纸币价格为a，书的钱数为b，花费后的钱数为（a-b），我们可以用最少的纸币去凑（a-b），相减可得剩余最多

5.

#include<cstdio>

#include<iostream>

#include<stdio.h>

#include<vector>

#include<algorithm>

#include<numeric>

#include<math.h>

#include<string.h>

#include<map>

#include<set>

#include<vector>

using namespacestd;

int themin(intp,int arr[],int a[])

{

    int count=0,i,k;

    for(i=4;i>=0;i--)

    {

        if(p>=arr[i]*a[i])

        {

            p-=arr[i]*a[i];

            count+=arr[i];

        }

        else

        {

            k=p/a[i];

            count+=k;

            p-=k*a[i];

        }

    }

    if(p>0) return -1;

    else return count;

}

int themax(intp,int arr[],int a[])

{

    int sum[10],i,count=0;

    sum[0]=arr[0];

    for(i=1;i<=4;i++)

        sum[i]=sum[i-1]+a[i]*arr[i];

 

    for(i=4;i>0;i--)

    {

        if(p<=sum[i-1]) continue;

        else

        {

            int t;

           t=((p-sum[i-1])/a[i])+(((p-sum[i-1])%a[i])?1:0);

            count+=t;

            p-=t*a[i];

        }

    }

    if(p>arr[0])    return -1;

    else   return count+p;

}

 

 

int main()

{   int N,i,t;

    cin>>N;

    int p,a[6]={1,5,10,50,100},arr[6];

    while(N--)

    {

        cin>>p;int sum=0;

        for(i=0;i<5;i++)

        {

            cin>>arr[i];

            sum+=arr[i]*a[i];

        }

        if(sum<p)cout<<-1<<" "<<-1<<endl;

        else

        {

            t=themin(p,arr,a);

            if(t==-1)

            {

                cout<<-1<<""<<-1<<endl;

            }

            else

            {

                cout<<t<<""<<themax(p,arr,a)<<endl;

            }

        }

    }

      return 0;

}