Submission #19842

#	Time	Username	Problem	Language	Result	Execution time	Memory
19842		willbelucky	괄호 (kriii4_R)	C++98	0 / 100	0 ms	1716 KiB

R

#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;

	cout << cache[N & 3] % 1000000007 << endl;

	return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 92