程序代码：

#include <math.h>
#include"string.h"
#include"stdlib.h"
#include <stdio.h>
FILE *out;
/*
0.9*0.8*0.7*0.6*0.5*0.4*0.3*0.2*0.1*1^0
0.9*0.8*0.7*0.6*0.5*0.4*0.3*0.2*0.9^1
0.9*0.8*0.7*0.6*0.5*0.4*0.3*0.8^2
0.9*0.8*0.7*0.6*0.5*0.4*0.7^3
0.9*0.8*0.7*0.6*0.5*0.6^4
0.9*0.8*0.7*0.6*0.5^5
0.9*0.8*0.7*0.4^6
0.9*0.8*0.3^7
0.9*0.2^8
0.1^9
*/

int main(void)
{
    long double m, n, c = 1, k = 10, h = k - 10, sum = 0, b, t, u, v, s = 10;  //k为实际的孔数   
    out = fopen("E:\\收获1.txt", "wt");
    for (m = 10; m >= 0; m--)   //m为微滴进入的孔数
    {
        u = m / k;
        v = k - m;
        b = pow(u, v);
        c = 1;
        for (n = k-1; n >= k + 1 - m; n--)
            c *= (n / s);
        t = b*c;
        sum = sum + t;
        fprintf(out, "%.12f\n", t);   //%.6f意思是保留6位小数
    }
    fprintf(out, "%.20f\n", sum);
}

程序代码：

int main()
{
    int i,j,n=10;
    double prod=1.0;
    for(j=0;j<=9;j++)
    {
        for(i=9;i>j;i--)
            prod *= (double)i/10;
        prod *= pow(1.0 - (double)j/10,j);
        printf("%.35lf\n",prod);
    }

       
    return 0;
     
}