제출 #19818

#제출 시각아이디문제언어결과실행 시간메모리
19818ilbbke괄호 (kriii4_R)C++98
0 / 100
0 ms1084 KiB
#include<stdio.h>

int main()
{
    int n,k;
    long long D[5];
    scanf("%d%d",&n,&k);
    D[0]=1, D[1]=k;
    for(int i=2; i<=n; i++) D[i%3]=((D[(i-1)%3]+D[(i-2)%3])*k)%1000000007;
    printf("%lld\n",D[n%3]);
    return 0;
}
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