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2 parents 4d36cb0 + b79eed8 commit da39949Copy full SHA for da39949
0224LJH/202510/07 가지고 노는 1.md
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+```java
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+import java.util.*;
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+import java.io.*;
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+
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+public class Main {
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+ public static void main(String[] args) throws IOException {
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+ BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
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+ int size = Integer.parseInt(br.readLine());
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+ boolean[] visited = new boolean[size];
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+ int remainder = 1 % size;
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+ int length = 1;
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+ // 1을 나눈 나머지를 저장하고 방문을 표시
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+ visited[remainder] = true;
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+ while (remainder != 0) {
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+ // 새로운 수를 만드는 방법: 나머지를 10배하고 1을 더함
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+ remainder = (remainder * 10 + 1) % size;
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+ length++;
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+ if (visited[remainder]) {
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+ System.out.println(-1);
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+ return;
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+ }
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+ System.out.println(length);
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+}
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+```
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