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Create Fibonacci Sum #461

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Create Fibonacci Sum #461

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40 changes: 40 additions & 0 deletions Fibonacci Sum
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Original file line number Diff line number Diff line change
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// { Driver Code Starts


#include<bits/stdc++.h>
using namespace std;

// } Driver Code Ends




class Solution{
public:
long long int fibSum(long long int N){
//code here
long long int sum=1;
int fab[N+1];
fab[0]=0;fab[1]=1;
for(int i=2;i<=N;i++){
fab[i] = (fab[i-1]%1000000007+fab[i-2]%1000000007)%1000000007;
sum=(sum+fab[i]%1000000007)%1000000007;
}
return (sum)%1000000007;
}
};

// { Driver Code Starts.
int main()
{
int t;
cin>>t;
while(t--)
{
long long int N;
cin>>N;
Solution ob;
cout << ob.fibSum(N) << endl;
}
return 0;
} // } Driver Code Ends