[20251012] BOJ / G5 / 암호 만들기 / 김민진

zinnnn37/202510/12 BOJ G5 암호 만들기.md

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+```java
+import java.io.*;
+import java.util.Arrays;
+import java.util.StringTokenizer;
+
+public class BJ_1759_암호_만들기 {
+
+	private static final String VOWELS = "aeiou";
+
+	private static final BufferedReader  br = new BufferedReader(new InputStreamReader(System.in));
+	private static final BufferedWriter  bw = new BufferedWriter(new OutputStreamWriter(System.out));
+	private static final StringBuilder   sb = new StringBuilder();
+	private static       StringTokenizer st;
+
+	private static int L, C;
+	private static String[] chars;
+	private static int[]    candidate;
+
+	public static void main(String[] args) throws IOException {
+		init();
+		sol(0, 0, 0, 0);
+
+		bw.write(sb.toString());
+		bw.flush();
+		bw.close();
+		br.close();
+	}
+
+	private static void init() throws IOException {
+		st = new StringTokenizer(br.readLine());
+		L  = Integer.parseInt(st.nextToken());
+		C  = Integer.parseInt(st.nextToken());
+
+		chars     = new String[C];
+		candidate = new int[L];
+		st        = new StringTokenizer(br.readLine());
+		for (int i = 0; i < C; i++) {
+			chars[i] = st.nextToken();
+		}
+		Arrays.sort(chars);
+	}
+
+	private static void sol(int depth, int start, int vowels, int consonants) {
+		if (depth == L) {
+			if (vowels >= 1 && consonants >= 2) {
+				appendAns();
+			}
+			return;
+		}
+
+		for (int i = start; i < C; i++) {
+			candidate[depth] = i;
+
+			boolean isVowel = VOWELS.contains(chars[i]);
+
+			sol(depth + 1, i + 1, isVowel ? vowels + 1 : vowels, isVowel ? consonants : consonants + 1);
+		}
+	}
+
+	private static void appendAns() {
+		for (int c : candidate) {
+			sb.append(chars[c]);
+		}
+		sb.append("\n");
+	}
+
+}
+```