View Code of Problem 3695

#include<stdio.h>
#include<string.h>
#include<math.h>
int main()
{
	int i,j,k,t,a[100]={0};
	a[0]=1,a[1]=2;
	for(i=2;i<100;i++)
	{
		a[i]=a[i-1]+a[i-2];
	}
	scanf("%d",&t);
	while(t--)
	{
		int sum=0,n;
		scanf("%d",&n);
		for(i=0;i<n;i++)
		{
			sum=sum+a[i];
		}
		printf("%d\n",sum);
	}
 }