question1.cpp

C++源代码

#include "stdafx.h"
#include <iostream>
using namespace std;
int sum=0;
void qiu(int n,int * p,int k)
{
    while(n > 0)
    {
        if(k >= p[n-1])
        {
            sum = sum + p[n - 1];
            cout << "包中放" << n << "个宝贝" << endl;
            qiu(n-1,p,k-p[n - 1]);
            return;
        }
        n--;
    }
    return;
}
int main()
{
    int n;
    int * p;
    int k;
    int m = 0;
    cout << "请输入宝物数量" << endl;
    cin >> n;
    p = new int[n];
    if(p == NULL)
    {
        cout << "error" << endl;
        return 0;
    }
    for(int i = 0;i < n;i++)
    {
        if(i > 0)
        {
            m = m + p[i - 1];
        }
        do
        {
            cout << "请输入第" << i + 1 << "个宝物价值" <<endl;
            cin >> p[i];
        }while(p[i] <= m);
    }
    cout << "请输入背包最大价值k" << endl;
    cin >> k;
    qiu(n,p,k);
    cout << "最大价值是" << sum << endl;
    return 0;
}