商人本性

#include "stdafx.h"
#include <iostream>
#include <stdlib.h>

using namespace std;

int main()
{
    double a = 0, b = 0, c = 0, d[99999] = { 0 }, e[2] = { -7 , 10 }, m;
    int i = 0;

    while (1) {

        cout << "投資：";
        cin >> i;

        for (int k = 0; k < i; k++){
            cin >> a >> b;
            c = b - a;
            d[k] = c / a;
            d[k] *= 100;

        }

        for (int k = 0; k < i; k++) {
            cout << d[k] << " %";
            if (d[k] <= e[0] || d[k] >= e[1]) {
                cout << " , Dispose" << endl;
            }
            else {
                cout << " , keep" << endl;
            }
        }

        system("PAUSE");
        system("CLS");
    }
    return 0;
}