- 有一个分数序列:2/1,3/2,5/3,8/5,13/8,21/?
- 快快点，急需帮助，先谢谢个位大大了，用解答
-
void main()
{
int num, denom; //定义分子和分母
int a,b;
double sum; //和
a = 2; //定义初始值
b = 1;
sum = (double)a/b;
for ( int i=1; i<24; i++ )
{
num = a + b;
denom = a;
sum = sum + (double)num/denom;
a = num;
b = denom;
}
//取小数点后两位
sum = sum*100;
sum = sum + 0.5;
sum = (int)sum;
sum = (double)sum/100;
printf("the sum = %f\n",sum);
}