Submission #19723

#	Time	Username	Problem	Language	Result	Execution time	Memory
19723		joojis	괄호 (kriii4_R)	C++14	0 / 100	4 ms	3944 KiB

R

#include <cstdio>
#include <vector>

#define MOD (1000000007)

main ()
{
  int N, K;
  scanf("%d %d", &N, &K);
  std::vector<long long unsigned> A(N+1, 0);
  A[0] = 1;
  A[1] = K;
  for (unsigned i=2; i<=N; i++) {
    A[i] = (A[i-1]*K + A[i-2]*K) % MOD;
  }
  printf("%llu ", A[N]);
  return 0;
}

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