코드포스 509A (codeforces 509A)
Algorithms / 코드포스 (codeforces)
Codeforces Codeforces 509a 코드포스 코드포스 509a Problem - 509a - codeforces
코드포스 509A (codeforces 509A) 문제 풀이 및 코드 (description and code)
Problem - 509A - Codeforces
코드
import java.io.*;
import java.util.Arrays;
public class CF509A {
static int n, ans = 0;
static String ins[];
static int[][] map = new int[11][11];
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
n = Integer.parseInt(br.readLine());
Arrays.fill(map[1], 1);
for (int i = 2; i <= n; i++) {
map[i][1] = 1;
for (int j = 2; j <= n; j++) {
map[i][j] = map[i][j - 1] + map[i - 1][j];
}
}
bw.write(map[n][n] + "\n");
bw.flush();bw.close();
}
}