[BOJ] 백준 2482 색상환

[백준]

https://www.acmicpc.net/problem/2482

 

 

[소스코드]

import java.io.*;
import java.util.*;
public class Main {
    public static void main(String[] args) throws IOException {
    	BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    	int n = Integer.parseInt(br.readLine());
    	int k = Integer.parseInt(br.readLine());
    	int[][] dp = new int[n+1][k+1];
    	for(int i=1;i<=n;i++) dp[i][1] = i;
    	for(int i=4;i<=n;i++) {
    		for(int j=2;j<=k;j++) {
    			if(i/2<j) break;
    			dp[i][j] = (dp[i-1][j] + dp[i-2][j-1]) % 1000000003;
    		}
    	}
    	System.out.println(dp[n][k]);
    }
}