#include <stdlib.h>
#include <stdio.h>
#include <time.h>

//Times to iterate (default is 4000000000 [4 billion], which will take some time)
const unsigned int TOTAL = 4000000000;

int main(int argc, char* argv[]){
    unsigned int i = 0;
    int j = 1000;
    unsigned int doors[3] = {0, 0, 0};
    unsigned int wins = 0;

    srand(time(NULL));

    //Main calculation loop
    for(i = 0; i < TOTAL; i++){
        int choice = rand()%3;
        int tmp = rand()%3;

        if(tmp != choice) wins++;
        doors[tmp]++;

        //Print completion percentage, and current win/loss percent
        j--;
        if(j <= 0){
            printf("\rWorking Percent: %f [Completion: %u%%]", (double)((double)wins/(double)i), (unsigned int)(((double)i/(double)TOTAL)*100));
            j = 10000;
        }
    }

    //Output data
    printf("\n");
    printf("One:     %u\n", (unsigned int)doors[0]);
    printf("Two:     %u\n", (unsigned int)doors[1]);
    printf("Three:   %u\n", (unsigned int)doors[2]);
    printf("Wins:    %u\n", (unsigned int)wins);
    printf("Total:   %u\n", (unsigned int)i);
    printf("Percent: %f\n", (double)wins/(double)TOTAL);


    return 0;
}