diff --git "a/JHLEE325/202603/16 BOJ G4 \354\202\254\353\203\245\352\276\274.md" "b/JHLEE325/202603/16 BOJ G4 \354\202\254\353\203\245\352\276\274.md" new file mode 100644 index 00000000..36bae7bd --- /dev/null +++ "b/JHLEE325/202603/16 BOJ G4 \354\202\254\353\203\245\352\276\274.md" @@ -0,0 +1,54 @@ +```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 = new StringTokenizer(br.readLine()); + + int M = Integer.parseInt(st.nextToken()); + int N = Integer.parseInt(st.nextToken()); + int L = Integer.parseInt(st.nextToken()); + + int[] guns = new int[M]; + st = new StringTokenizer(br.readLine()); + for (int i = 0; i < M; i++) { + guns[i] = Integer.parseInt(st.nextToken()); + } + + Arrays.sort(guns); + + int count = 0; + for (int i = 0; i < N; i++) { + st = new StringTokenizer(br.readLine()); + int x = Integer.parseInt(st.nextToken()); + int y = Integer.parseInt(st.nextToken()); + + if (y > L) continue; + + int low = 0; + int high = M - 1; + + while (low <= high) { + int mid = (low + high) / 2; + + long dist = (long) Math.abs(guns[mid] - x) + y; + + if (dist <= L) { + count++; + break; + } + + if (guns[mid] < x) { + low = mid + 1; + } else { + high = mid - 1; + } + } + } + + System.out.println(count); + } +} +```