壓

[cultivate (拉拉拉)]

#include <stdio.h>
#include <stdlib.h>
int rollDice();
void main()
{
        int x,i,x1=0,x2=0,x3=0,x4=0,x5=0,x6=0;
        double y1,y2,y3,y4,y5,y6;
        for (i=0;i<6000;i++)
        {
                x=rollDice();
                switch(x)
                {
                case 1:x1++;
                        break;
                case 2:x2++;
                        break;
                case 3:x3++;
                        break;

 case 4:x4++;
                        break;
                case 5:x5++;
                        break;
                case 6:x6++;
                        break;
                }
        }
        y1=x1/6000.0;
        y2=x2/6000.0;
        y3=x3/6000.0;
        y4=x4/6000.0;
        y5=x5/6000.0;
        y6=x6/6000.0;
        printf("1有%d個,機率是%lf\n",x1,y1);
        printf("2有%d個,機率是%lf\n",x2,y2);
        printf("3有%d個,機率是%lf\n",x3,y3);
        printf("4有%d個,機率是%lf\n",x4,y4);
        printf("5有%d個,機率是%lf\n",x5,y5);
        printf("6有%d個,機率是%lf\n",x6,y6);
}
int rollDice()
{
        int a,b;
        a=rand();
        b=a%6+1;
        return b;
}


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