你可以尝试算一下那个东西的性价比
by ysm0703 @ 2022-11-28 18:56:29
P老师有可能花超过10000元，比如要买9999支铅笔，最便宜的方法是9998支铅笔要5001元，就要花10002元。所以min要开大一点，建议最好10^8+5(1支铅笔10000元，要买10000支)
by jhdrgfj @ 2022-11-28 19:02:32
```
#include<bits/stdc++.h>
using namespace std;
struct node{
int num,money;
int xingjiabi;
}arr[5];
int cmp(node a,node b){
return a.xingjiabi>b.xingjiabi;
}
int main(){
int n;
cin>>n;
cin>>arr[1].num>>arr[1].money>>arr[2].num>>arr[2].money>>arr[3].num>>arr[3].money;
arr[1].xingjiabi=n%arr[1].num?(n/arr[1].num+1)*arr[1].money:n/arr[1].num*arr[1].money;
arr[2].xingjiabi=n%arr[2].num?(n/arr[2].num+1)*arr[2].money:n/arr[2].num*arr[2].money;
arr[3].xingjiabi=n%arr[3].num?(n/arr[3].num+1)*arr[3].money:n/arr[3].num*arr[3].money;
cout<<min(min(arr[1].xingjiabi,arr[2].xingjiabi),arr[3].xingjiabi);
return 0;
}
by ysm0703 @ 2022-11-28 19:12:04
AC代码
by ysm0703 @ 2022-11-28 19:12:30
@[ysm0703](/user/778009) 目前只会C语言怎么办
by linyiyi123456 @ 2022-12-02 00:44:40
@[linyiyi123456](/user/901149) 学呗。
C++是C的升级版。
可以到<https://www.runoob.com/cplusplus/cpp-tutorial.html>去学习。
下面给出C# Mono代码：
```c#
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace ConsoleApp8
{
internal class Program
{
static void Main()
{
int n, n1, n2, n3, p1, p2, p3, t1, t2, t3, total;
n = int.Parse(Console.ReadLine());
string[] args = Console.ReadLine().Split(' ');
n1 = int.Parse(args[0]);
p1 = int.Parse(args[1]);
args = Console.ReadLine().Split(' ');
n2 = int.Parse(args[0]);
p2 = int.Parse(args[1]);
args = Console.ReadLine().Split(' ');
n3 = int.Parse(args[0]);
p3 = int.Parse(args[1]);
t1 = (n % n1 == 0) ? n / n1 * p1 : (n / n1 + 1) * p1;
t2 = (n % n2 == 0) ? n / n2 * p2 : (n / n2 + 1) * p2;
t3 = (n % n3 == 0) ? n / n3 * p3 : (n / n3 + 1) * p3;
total = Math.Min(t1, Math.Min(t2, t3));
Console.WriteLine($"{total}");
//Console.ReadKey();
}
}
}
```
by int_stl @ 2022-12-29 10:56:26
@[linyiyi123456](/user/901149) 这个跟我写得差不多 问题解决了吗呜呜
by 2516815323cc @ 2023-01-15 20:23:15