View Code of Problem 48

#include<stdio.h>
int main()
{
	double a1,a2,m;
	int n;
	double sum=0;
	a1=2;
	a2=1;
	scanf("%d",&n);
	for(int i=1;i<=n;i++)
	{
		sum=sum+a1/a2;
		m=a1;
		a1=a1+a2;
		a2=m;
		
	}
	printf("%.6lf\n",sum);
	
 } 

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