使用蒙特卡罗方法计算Pi的数学常数值

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

int main()
{
     int p, intCircle = 0, intSquare, intToss = 3000, intRM;
     float  pi, x, fltY, fltR;
     intRM = RAND_MAX;


     intSquare = intToss;
     for (int i = 0; i < intToss; i++) {
         p = rand();
         x = ((float)p)/intRM;
         p = rand();
         fltY = ((float)p)/intRM;
         fltR = sqrt((x * x) + (fltY * fltY));
         if (fltR <= 1)
           intCircle = intCircle + 1;
     }
     pi = 4 * ((float) intCircle) / intSquare ;
     printf("\nThe value of pi is : %f\n", pi);
     return(0);
}