Submission #19863

#	Time	Username	Problem	Language	Result	Execution time	Memory
19863		joojis	괄호 (kriii4_R)	C++14	0 / 100	4 ms	4084 KiB

R

#include <iostream>
#include <vector>

using namespace std;

const long long unsigned MOD = 1000000007;

void solveCase ()
{
  long long unsigned N, K;
  cin >> N >> K;
  vector<long long unsigned> A(N+1);
  A[0] = 1;
  A[1] = K;
  for (unsigned i=2; i<=N; i++) {
    A[i] = (A[i-1]*K + A[i-2]*K) % MOD;
  }
  cout << A[N] << endl;
}

int main ()
{
#ifdef _TC
  int T = _TC;
#else
  int T = 1;
#endif
  while (T--) {
    solveCase();
  }
}

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