From 2f8b6708ee6cd7a36fea52e703e73171c14041a4 Mon Sep 17 00:00:00 2001 From: JHLEE325 <82587652+JHLEE325@users.noreply.github.com> Date: Sat, 20 Sep 2025 19:45:46 +0900 Subject: [PATCH] =?UTF-8?q?[20250920]=20BOJ=20/=20G2=20/=20=EA=B0=80?= =?UTF-8?q?=EC=9E=A5=20=EA=B8=B4=20=EC=A6=9D=EA=B0=80=ED=95=98=EB=8A=94=20?= =?UTF-8?q?=EB=B6=80=EB=B6=84=20=EC=88=98=EC=97=B4=203=20/=20=EC=9D=B4?= =?UTF-8?q?=EC=A4=80=ED=9D=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...353\266\204 \354\210\230\354\227\264 3.md" | 41 +++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 "JHLEE325/202509/20 BOJ G2 \352\260\200\354\236\245 \352\270\264 \354\246\235\352\260\200\355\225\230\353\212\224 \353\266\200\353\266\204 \354\210\230\354\227\264 3.md" diff --git "a/JHLEE325/202509/20 BOJ G2 \352\260\200\354\236\245 \352\270\264 \354\246\235\352\260\200\355\225\230\353\212\224 \353\266\200\353\266\204 \354\210\230\354\227\264 3.md" "b/JHLEE325/202509/20 BOJ G2 \352\260\200\354\236\245 \352\270\264 \354\246\235\352\260\200\355\225\230\353\212\224 \353\266\200\353\266\204 \354\210\230\354\227\264 3.md" new file mode 100644 index 00000000..714a9bda --- /dev/null +++ "b/JHLEE325/202509/20 BOJ G2 \352\260\200\354\236\245 \352\270\264 \354\246\235\352\260\200\355\225\230\353\212\224 \353\266\200\353\266\204 \354\210\230\354\227\264 3.md" @@ -0,0 +1,41 @@ +```java +import java.io.*; +import java.util.*; + +public class Main { + public static void main(String[] args) throws Exception { + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + StringTokenizer st; + int n = Integer.parseInt(br.readLine()); + int[] arr = new int[n]; + + st = new StringTokenizer(br.readLine()); + for (int i = 0; i < n; i++) { + arr[i] = Integer.parseInt(st.nextToken()); + } + + int[] lis = new int[n]; + int size = 0; + + for (int num : arr) { + int pos = lowerBound(lis, 0, size, num); + lis[pos] = num; + if (pos == size) size++; + } + + System.out.println(size); + } + + static int lowerBound(int[] arr, int left, int right, int num) { + while (left < right) { + int mid = (left + right) / 2; + if (arr[mid] < num) { + left = mid + 1; + } else { + right = mid; + } + } + return left; + } +} +```