[20250404] BOJ / G3 / 홍익 투어리스트 / 권혁준

Author: oncsr

khj20006/202504/04 G3 홍익 투어리스트.md

@@ -0,0 +1,88 @@
+```java
+
+import java.util.*;
+import java.io.*;
+
+class Main {
+	
+	// IO field
+	static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+	static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
+	static StringTokenizer st = new StringTokenizer("");
+
+	static void nextLine() throws Exception {st = new StringTokenizer(br.readLine());}
+	static String nextToken() throws Exception {
+		while(!st.hasMoreTokens()) nextLine();
+		return st.nextToken();
+	}
+	static int nextInt() throws Exception { return Integer.parseInt(nextToken()); }
+	static long nextLong() throws Exception { return Long.parseLong(nextToken()); }
+	static double nextDouble() throws Exception { return Double.parseDouble(nextToken()); }
+	static void bwEnd() throws Exception {bw.flush();bw.close();}
+	
+	// Additional field
+	
+	static int N, Q;
+	static int[] A;
+	static TreeSet<Integer> T;
+	
+	public static void main(String[] args) throws Exception {
+			
+		ready();
+		solve();
+	
+		bwEnd();
+		
+	}
+	
+	static void ready() throws Exception{
+		
+		N = nextInt();
+		Q = nextInt();
+		T = new TreeSet<>();
+		for(int i=0;i<N;i++) if(nextInt() == 1) T.add(i);
+		
+	}
+	
+	static void solve() throws Exception{
+		
+		int cur = 0;
+		for(;Q-->0;) {
+			int op, x;
+			op = nextInt();
+			
+			if(op == 3) {
+				Integer temp = T.ceiling(cur);
+				int m1 = -1;
+				if(temp != null) {
+					m1 = temp;
+					bw.write((m1-cur) + "\n");
+					continue;
+				}
+				temp = T.ceiling(0);
+				int m2 = -1;
+				if(temp != null) {
+					m2 = temp;
+					bw.write((N-cur+m2) + "\n");
+					continue;
+				}
+				bw.write("-1\n");
+				
+			}
+			else {
+				x = nextInt();
+				if(op == 1) {
+					if(T.contains(x-1)) T.remove(x-1);
+					else T.add(x-1);
+				}
+				else {
+					cur = (cur + x) % N;
+				}
+			}
+		}
+		
+	}
+	
+}
+
+```