나의 풀이 import java.io.*; public class Sugar_Delivery_2839 { public static void main(String[] args) throws IOException { int answer = 1; int count = 1; BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); int N = Integer.parseInt(bf.readLine()); while (count < N) { count += 6 * (answer++); } bw.write(a..
나의 풀이 import java.io.*; public class Main { static int answer; public static void main(String[] args) throws IOException { BufferedReader bf = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); int N = Integer.parseInt(bf.readLine()); if (N == 4 || N == 7) { bw.write("-1"); } else { while (N % 5 != 0) { N -= 3; answer..