View Code of Problem 71

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
/* run this program using the console pauser or add your own getch, system("pause") or input loop */

int main() {
	int n,i;
	double sum=2.0;
	scanf("%d",&n);
	double a[1000]={1,2};
	for(i=1;i<n;i++){
		a[i+1]=a[i]+a[i-1];
		sum=sum+a[i+1]/a[i];
	}
	printf("%.2lf",sum);
}

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