제출 #19737

#제출 시각아이디문제언어결과실행 시간메모리
19737willbelucky괄호 (kriii4_R)C++98
0 / 100
0 ms1716 KiB
#include <iostream>
using namespace std;

int main()
{
	int N, K;
	cin >> N >> K;

	int cache[4];
	cache[0] = 1;
	cache[1] = K;

	for (int iter = 2; iter < N+1; iter++)
	{
		cache[iter&3] = ((cache[(iter - 2)&3] + cache[(iter - 1)&3])*K % 1000000007);
	}

	cout << cache[N&3];
}
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