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#1

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
int mod = 1e9+7;
void print(vector< vector > v)
{
for(int i=0;i<v.size();i++)
{
for(int j=0;j<v[i].size();j++)
{
cout<<v[i][j]<<" “;
}
cout<<endl;
}
}
vector< vector > multiply(vector< vector > A, vector< vector > B){
ll acol = A[0].size(), arow = A.size(), bcol = B[0].size(), brow = B.size();
vector< vector >fans;
vector temp;
for(ll i=0;i<arow;i++)
{
temp.clear();
for(ll j=0;j<bcol;j++)
{
ll sum = 0;
for(ll k=0;k<brow;k++)
{
sum = (sum + ((A[i][k]%mod)*(B[k][j]%mod))%mod)%mod;
}
temp.push_back(sum);
}
fans.push_back(temp);
}
return fans;
}
vector< vector > expo(vector< vector > arr, ll n)
{
if(n==1)
{
return arr;
}
vector< vector > shortans = expo(arr,n/2);
vector< vector > ans = multiply(shortans,shortans);
if(n&1) ans = multiply(ans,arr);
return ans;
}
ll fib(ll n)
{
vector< vector > arr,fib_seq;
vector v1; v1.push_back(0); v1.push_back(1); arr.push_back(v1);
v1.clear(); v1.push_back(1); v1.push_back(1); arr.push_back(v1);
v1.clear(); v1.push_back(0); fib_seq.push_back(v1); v1.clear(); v1.push_back(1); fib_seq.push_back(v1);
vector< vector > matrix = expo(arr,n-1);
/cout<<“MATRIX is : \n”;
print(matrix);
cout<<endl<<endl;
cout<<“fib _seq is: \n”;
print(fib_seq);
cout<<endl<<endl;/
vector< vector > ans = multiply(matrix,fib_seq);
//print(ans);
return ans[1][0];
}
int main () {
int t;
cin>>t;
while(t–)
{
ll n;
cin>>n;
cout<<fib(n)<<”\n";
}
return 0;
}

#2

There may be some back-end issue. It will be resolved ASAP.

#3

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