구구단1 [백준]2739번:구구단 - java 풀이 BufferedReader + StringBuilder 풀이) import java.io.BufferedReader; import java.io.IOException; import java.io.InputStreamReader; 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()); br.close(); StringBuilder sb = new StringBuilder(); for(int i=1; i 2023. 3. 30. 이전 1 다음