[Simulation] baekjoon-1244

Author: Seogeurim

README.md

@@ -24,6 +24,7 @@
 | 02  |     | [Baekjoon-14891 톱니바퀴](./src/Simulation/P14891)     |      |
 | 03  |     | [Baekjoon-15662 톱니바퀴 (2)](./src/Simulation/P15662) |      |
 | 04  |     | [Baekjoon-12100 2048 (Easy)](./src/Simulation/P12100) | 삼성 SW 역량 테스트 기출 |
+| 05  |     | [Baekjoon-1244 스위치 켜고 끄기](./src/Simulation/P1244) |      |
 
 ## String
 

src/Simulation/P1244/Main.java

@@ -0,0 +1,51 @@
+package Simulation.P1244;
+
+import java.io.*;
+import java.util.*;
+
+public class Main {
+
+    static int N, S;
+    static int[] switches;
+
+    public static void main(String[] args) throws Exception {
+        System.setIn(new FileInputStream("src/Simulation/P1244/input.txt"));
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        N = Integer.parseInt(br.readLine());
+        switches = new int[N+1];
+
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        for (int i = 1; i <= N; i++) switches[i] = Integer.parseInt(st.nextToken());
+
+        S = Integer.parseInt(br.readLine());
+        while (S-- > 0) {
+            st = new StringTokenizer(br.readLine());
+            int gender = Integer.parseInt(st.nextToken());
+            int num = Integer.parseInt(st.nextToken());
+
+            if (gender == 1) {
+                for (int i = num; i <= N; i += num) changeSwitch(i);
+            } else if (gender == 2) {
+                changeSwitch(num);
+                int i = 1;
+                while (0 < num-i && num+i <= N) {
+                    if (switches[num-i] == switches[num+i]) {
+                        changeSwitch(num-i);
+                        changeSwitch(num+i);
+                        i++;
+                    } else break;
+                }
+            }
+        }
+
+        for (int i = 1; i <= N; i++) {
+            System.out.print(switches[i] + " ");
+            if (i % 20 == 0) System.out.println();
+        }
+    }
+
+    static void changeSwitch(int i) {
+        switches[i] = switches[i] == 0 ? 1 : 0;
+    }
+}

src/Simulation/P1244/README.md

@@ -0,0 +1,4 @@
+## [baekjoon-1244] 스위치 켜고 끄기
+
+![image](https://user-images.githubusercontent.com/22045163/106439518-1e015d80-64bb-11eb-9f89-d91f1f8ed942.png)
+![image](https://user-images.githubusercontent.com/22045163/106439564-2e193d00-64bb-11eb-8edf-a7cb1803fd51.png)

src/Simulation/P1244/input.txt

@@ -0,0 +1,8 @@
+8
+0 1 0 1 0 0 0 1
+2
+1 3
+2 3
+
+//output
+1 0 0 0 1 1 0 1