✅ 자료형 범위
✅ 큰 수에 대한 나머지 연산
result += p % 1000000007
result *= p;
result %= 1000000007;
✅ 코드
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;
public class Main {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
StringTokenizer st;
st = new StringTokenizer(br.readLine());
int k = Integer.parseInt(st.nextToken());
int p = Integer.parseInt(st.nextToken());
int n = Integer.parseInt(st.nextToken());
long result = k;
for (int i = 0; i < n; i++) {
result *= p;
result %= 1000000007;
}
System.out.println(result);
}
}