Rolling a Six-Sided Die 6,000,000 Times, and check the frequency - C++ Data Type

C++ examples for Data Type:Random

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Description

Rolling a Six-Sided Die 6,000,000 Times, and check the frequency

Demo Code

#include <cstdlib>
#include <iomanip>
#include <iostream>

int main(int argc, const char *argv[]) {
    int frequency1 = 0;
    int frequency2 = 0;
    int frequency3 = 0;
    int frequency4 = 0;
    int frequency5 = 0;
    int frequency6 = 0;

    int face;/*from w ww .  j  a va 2s  .c  om*/

    for (int roll = 0; roll <= 6000000; ++roll) {
        face = 1 + rand() % 6;

        // determine roll value 1-6 and increment appropriate counter
        switch (face) {
            case 1:
                ++frequency1;
                break;
            case 2:
                ++frequency2;
                break;
            case 3:
                ++frequency3;
                break;
            case 4:
                ++frequency4;
                break;
            case 5:
                ++frequency5;
                break;
            case 6:
                ++frequency6;
                break;
            default:
                std::cout << "Program should never get here!";
        }

        std::cout << "Face" << std::setw(13) << "Frequency" << std::endl;
        std::cout << "   1" << std::setw(13) << frequency1 << "\n   2"
                  << std::setw(13) << frequency2 << "\n   3" << std::setw(13)
                  << frequency3 << "\n   4" << std::setw(13) << frequency4
                  << "\n   5" << std::setw(13) << frequency5 << "\n   6"
                  << std::setw(13) << frequency6 << std::endl;
    }
    return 0;
}

Result


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