diff --git "a/Ukj0ng/202510/22 BOJ G3 \353\202\234\352\260\234\353\260\234.md" "b/Ukj0ng/202510/22 BOJ G3 \353\202\234\352\260\234\353\260\234.md" new file mode 100644 index 00000000..c61e757f --- /dev/null +++ "b/Ukj0ng/202510/22 BOJ G3 \353\202\234\352\260\234\353\260\234.md" @@ -0,0 +1,75 @@ +``` +import java.io.*; +import java.util.*; + +public class Main { + private static BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + private static BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); + private static List events; + private static int[][] points, traffic; + private static int N, M; + public static void main(String[] args) throws IOException { + init(); + long answer = sweep(); + + bw.write(answer + "\n"); + bw.flush(); + bw.close(); + br.close(); + } + + private static void init() throws IOException { + StringTokenizer st = new StringTokenizer(br.readLine()); + N = Integer.parseInt(st.nextToken()); + M = Integer.parseInt(st.nextToken()); + + events = new ArrayList<>(); + points = new int[N+1][2]; + traffic = new int[M][3]; + + for (int i = 1; i <= N; i++) { + st = new StringTokenizer(br.readLine()); + points[i][0] = Integer.parseInt(st.nextToken()); + points[i][1] = Integer.parseInt(st.nextToken()); + } + + for (int i = 0; i < M; i++) { + st = new StringTokenizer(br.readLine()); + int u = Integer.parseInt(st.nextToken()); + int v = Integer.parseInt(st.nextToken()); + int c = Integer.parseInt(st.nextToken()); + + traffic[i][0] = Math.min(points[u][1], points[v][1]); + traffic[i][1] = Math.max(points[u][1], points[v][1]); + traffic[i][2] = c; + } + + Arrays.sort(traffic, (o1, o2) -> { + if (o1[0] == o2[0]) return Integer.compare(o1[1], o2[1]); + return Integer.compare(o1[0], o2[0]); + }); + + for (int[] t : traffic) { + events.add(new int[]{t[0], t[2], 1}); + events.add(new int[]{t[1]+1, t[2], -1}); + } + + events.sort((o1, o2) -> { + if (o1[0] != o2[0]) return Integer.compare(o1[0], o2[0]); + return Integer.compare(o1[2], o2[2]); + }); + } + + private static long sweep() { + long result = 0; + long current= 0; + + for (int[] e : events) { + current += (long)e[1]*e[2]; + result = Math.max(result, current); + } + + return result; + } +} +```