编程基本功——复杂级数的前n项和

   2:  

int main()

   4: {

float m = 1.0;

float n = 1.0;

float s = 0.0;

int i, j;

   9:  

for (i=1; i<=5; ++i)

  11:     {

for (j=0; j<i; ++j)

  13:         {

  14:             m = m * 0.5;

  15:         }

for (j=1; j<=i; ++j)

  17:         {

  18:             n = n * j;

  19:         }

  20:         s = s + m*n;

  21:         m = 1.0;

  22:         n = 1.0;

  23:     }

, s);

  25:  

return 0;

  27: }