#include<stdio.h>
int main()
{
int i = 0, a;
float b, c = 2, d = 1, e = 0;
printf("請輸入位數");
scanf_s("%d", &a);
while (i<a)
{
b = 1.0*c / d;
c = c + d;
d = c;
e = e + b;
i++;
}
printf("%f", e);
return 0;
}
uj5u.com熱心網友回復：
改的比較多。。。#include<stdio.h>
int main()
{
int i = 0, a;
double b, c = 2.0, d = 1.0, f=2.0,e = 0;
printf("請輸入位數");
scanf_s("%d", &a);
while (i<a)
{
b = 1.0*c / d;
f = c;
c = c + d;
d = f;
e = e + b;
i++;
}
printf("%f", e);
return 0;
getchar();
}
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