結果
問題 | No.759 悪くない忘年会にしような! |
ユーザー |
|
提出日時 | 2018-12-07 02:40:17 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 837 ms / 2,000 ms |
コード長 | 3,450 bytes |
コンパイル時間 | 2,358 ms |
コンパイル使用メモリ | 79,436 KB |
実行使用メモリ | 54,684 KB |
最終ジャッジ日時 | 2024-09-14 03:11:22 |
合計ジャッジ時間 | 16,816 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 64 |
ソースコード
import java.util.*;import java.io.*;import java.math.*;class Main {public static void main(String[] args) {new Main().run();}void run() {Scanner sc = new Scanner();int N = sc.nextInt();int[] P = new int[N];int[] T = new int[N];int[] R = new int[N];int[][] a = new int[N][];for (int i = 0; i < N; ++i) {P[i] = sc.nextInt();T[i] = sc.nextInt();R[i] = sc.nextInt();a[i] = new int[] { P[i], T[i], R[i], i };}Arrays.sort(a, new Comparator<int[]>() {public int compare(int[] o1, int[] o2) {if (o1[0] != o2[0]) {return -Integer.compare(o1[0], o2[0]);} else if (o1[1] != o2[1]) {return -Integer.compare(o1[1], o2[1]);} else {return -Integer.compare(o1[2], o2[2]);}}});boolean[] ok = new boolean[N];Arrays.fill(ok, true);RMQ rmq = new RMQ(10000 + 1);for (int i = 0; i < N; ++i) {if (rmq.query(a[i][1], 10000 + 1) >= a[i][2]) {ok[a[i][3]] = false;}rmq.update(a[i][1], a[i][2]);}for (int i = 0; i < N; ++i) {if (ok[i])System.out.println(i + 1);}}class RMQ {int n;int[] v;public RMQ(int n_) {n = 1;while (n < n_)n *= 2;v = new int[2 * n - 1];Arrays.fill(v, -1);}void update(int k, int val) {k += n - 1;v[k] = Math.max(v[k], val);while (k > 0) {k = (k - 1) / 2;v[k] = Math.max(v[2 * k + 1], v[2 * k + 2]);}}int query(int a, int b) {return query(a, b, 0, n, 0);}int query(int a, int b, int l, int r, int k) {if (a <= l && r <= b)return v[k];else if (b <= l || r <= a)return -1;else {int vl = query(a, b, l, (l + r) / 2, 2 * k + 1);int vr = query(a, b, (l + r) / 2, r, 2 * k + 2);return Math.max(vl, vr);}}}void tr(Object... o) {System.out.println(Arrays.deepToString(o));}}class Scanner {private final InputStream in = System.in;private final byte[] buffer = new byte[1024];private int ptr = 0;private int buflen = 0;private boolean hasNextByte() {if (ptr < buflen) {return true;} else {ptr = 0;try {buflen = in.read(buffer);} catch (IOException e) {e.printStackTrace();}if (buflen <= 0) {return false;}}return true;}private int readByte() {if (hasNextByte())return buffer[ptr++];elsereturn -1;}private static boolean isPrintableChar(int c) {return 33 <= c && c <= 126;}private void skipUnprintable() {while (hasNextByte() && !isPrintableChar(buffer[ptr]))ptr++;}public boolean hasNext() {skipUnprintable();return hasNextByte();}public String next() {if (!hasNext())throw new NoSuchElementException();StringBuilder sb = new StringBuilder();int b = readByte();while (isPrintableChar(b)) {sb.appendCodePoint(b);b = readByte();}return sb.toString();}public long nextLong() {if (!hasNext())throw new NoSuchElementException();long n = 0;boolean minus = false;int b = readByte();if (b == '-') {minus = true;b = readByte();}if (b < '0' || '9' < b) {throw new NumberFormatException();}while (true) {if ('0' <= b && b <= '9') {n *= 10;n += b - '0';} else if (b == -1 || !isPrintableChar(b)) {return minus ? -n : n;} else {throw new NumberFormatException();}b = readByte();}}public int nextInt() {return (int) nextLong();}}