MCIRGAME - Point Connection Game in a Circle
Tác giả: happyboy99x
Ngôn ngữ: Java
import java.math.BigInteger;
import java.io.*;
class MCIRGAME {
public static void main(String argv[]) {
try {
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
BufferedWriter out = new BufferedWriter(new OutputStreamWriter(System.out));
BigInteger C[] = new BigInteger[151];
C[0] = BigInteger.ONE;
for(int i = 0; i < 150; ++i)
C[i+1] = C[i].multiply(BigInteger.valueOf(2*(2*i+1))).divide(BigInteger.valueOf(i+2));
for(int n; (n = Integer.parseInt(in.readLine())) != -1; out.write(C[n].toString()), out.newLine());
in.close(); out.close();
} catch (Exception ex) {
ex.printStackTrace();
}
}
}