数学趣题——猴子吃桃问题

an / 2 – 1 = an+1

#include <stdio.h>

   2:  

int main()

   4: {

int sum = 1, i;

for (i = 9; i >= 1; i--)

   7:     {

   8:         sum = (sum + 1) * 2;

   9:     }

, sum);

return 0;

  12: }