Submission #9606

#	Time	Username	Problem	Language	Result	Execution time	Memory
9606		shashack	Phibonacci (kriii2_P)	C++98	1 / 4	0 ms	1680 KiB

P

#include <iostream>
#include <iomanip>
#include <stdlib.h>
#include <stdio.h>
#include <algorithm>
#include <assert.h>
#include <bitset>
#include <cstring>
#include <cstdlib>
#include <ctime>
#include <map>
#include <math.h>
#include <malloc.h>
#include <numeric>
#include <string>
#include <stack>
#include <queue>
#include <vector>



#pragma warning(disable:4996)

#define REP(variable, repeatnumber) for(int variable=0; variable<(repeatnumber); ++variable)
#define FOR(variable, start, end) for(int variable=(start); variable<=(end); ++variable)
#define RFOR(variable, start, end) for(int variable=(start); variable>=(end); --variable)
#define ULL unsigned long long
#define LL long long 
using namespace std; // 700B

typedef vector<LL> vec;
typedef vector<vec> mat;



int x,y,z;
const LL M = 1000000007;
LL n;

mat mul(mat &A, mat &B){
	mat C(A.size(), vec(B[0].size()));
	x = A.size();
	for (int i = 0; i < x; i++){
		y = B.size();
		for (int k = 0; k < y; k++){
			z = B[0].size();
			for (int j = 0; j < z; j++){
				C[i][j] = ((C[i][j] + A[i][k] * B[k][j])+ M) % M;
			}
		}
	}
	return C;
}

mat pow(mat A, LL n){
	mat B(A.size(), vec(A.size()));
	x = A.size();
	for (int i = 0; i < x; i++){
		B[i][i] = 1;
	}
	while (n>0){
		if (n & 1) B = mul(B, A);
		A = mul(A, A);
		n >>= 1;
	}
	return B;
}

int main(){
	mat A(2, vec(2));
	A[0][0] = 1;	A[0][1] = 1;
	A[1][0] = 1;	A[1][1] = 0;
	cin >> n;
	A = pow(A, n) ;
	cout << A[1][0] << " ";
	A[0][0] = 1;	A[0][1] = 1;
	A[1][0] = 1;	A[1][1] = 0;
	A = pow(A, n - 1) ;
	cout << A[1][0] << endl;
	return 0;
}

• Subtask 1: 1 / 1
• Subtask 2: 0 / 3