dieroll2.cpp

来自「C++&datastructure书籍源码,以前外教提供现在与大家共享」· C++ 代码 · 共 35 行

#include <iostream>
using namespace std;
#include "dice.h"
#include "prompt.h"
#include "tvector.h"

// use vector to simulate rolling of two dice
// Owen Astrachan, March 9, 1994, modified 5/2/99

const int DICE_SIDES = 4;

int main()
{
    int sum;
    int k;
    Dice d(DICE_SIDES);
    tvector<int> diceStats(2*DICE_SIDES+1);  // room for largest dice sum
    int rollCount = PromptRange("how many rolls",1,20000);

    for(k=2; k <= 2*DICE_SIDES; k++)         // initialize counters to zero
    {   diceStats[k] = 0;
    }

    for(k=0; k < rollCount; k++)             // simulate all the rolls
    {   sum = d.Roll() + d.Roll();
        diceStats[sum]++;
    }

    cout << "roll\t\t# of occurrences" << endl;
    for(k=2; k <= 2*DICE_SIDES; k++)
    {   cout << k << "\t\t" << diceStats[k] << endl;
    }
    return 0;
}