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31 changes: 31 additions & 0 deletions src/인규/다이나믹프로그래밍/오르막수.java
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package 인규.다이나믹프로그래밍;

import java.util.Arrays;
import java.util.Scanner;

public class 오르막수 {

public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int N = sc.nextInt();
int[][] dp = new int[N + 1][10];
Arrays.fill(dp[1], 1);

for (int i = 2; i <= N; i++) {
for (int j = 0; j < 10; j++) {
for (int k = 0; k <= j; k++) {
dp[i][j] += dp[i - 1][k];
dp[i][j] %= 10007;
}
}
}

int answer = 0;
for (int i = 0; i < 10; i++) {
answer += dp[N][i];
answer %= 10007;
}
System.out.println(answer);
}

}