diff --git "a/Ukj0ng/202509/22 BOJ G5 \353\251\215\353\251\215\354\235\264 \354\223\260\353\213\244\353\223\254\352\270\260.md" "b/Ukj0ng/202509/22 BOJ G5 \353\251\215\353\251\215\354\235\264 \354\223\260\353\213\244\353\223\254\352\270\260.md" new file mode 100644 index 00000000..53d1bf84 --- /dev/null +++ "b/Ukj0ng/202509/22 BOJ G5 \353\251\215\353\251\215\354\235\264 \354\223\260\353\213\244\353\223\254\352\270\260.md" @@ -0,0 +1,42 @@ +``` +import java.io.*; +import java.util.*; + +public class Main { + private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); + private static long X, Y, diff; + + public static void main(String[] args) throws IOException { + init(); + long answer = solve(); + bw.write(answer + "\n"); + bw.flush(); + bw.close(); + br.close(); + } + + private static void init() throws IOException { + StringTokenizer st = new StringTokenizer(br.readLine()); + X = Long.parseLong(st.nextToken()); + Y = Long.parseLong(st.nextToken()); + diff = Y - X; + } + + private static long solve() { + if (diff == 0) { + return 0; + } + + long k = (long) Math.sqrt(diff); + + if (k * k == diff) { + return 2 * k - 1; + } else if (diff <= k * k + k) { + return 2 * k; + } else { + return 2 * k + 1; + } + } +} +```