art.java:1: error: class art is already defined in package unnamed package
import java.io.*;import java.util.*;public class art { static int n; static long[] max = new long[1100000], upd = new long[1100000]; static void upd(int l, int u, long d) { upd(0, 0, n-1, l, u, d); } static void upd(int i, int s, int e, int l, int u, long d) { if (upd[i] != 0) { max[i] += upd[i]; if (s != e) { upd[i * 2 + 1] += upd[i]; upd[i * 2 + 2] += upd[i]; } upd[i] = 0; } if (s > e || s > u || e < l) { return; } if (s >= l && e <= u) { max[i] += d; if (s != e) { upd[i * 2 + 1] += d; upd[i * 2 + 2] += d; } return; } upd(i * 2 + 1, s, (s + e)/2, l, u, d); upd(i * 2 + 2, (s + e)/2 + 1, e, l, u, d); max[i] = Long.max(max[i * 2 + 1], max[i * 2 + 2]); } static long max(int l, int u) { return max(0, 0, n-1, l, u); } static long max(int i, int s, int e, int l, int u) { if (upd[i] != 0) { max[i] += upd[i]; if (s != e) { upd[i * 2 + 1] += upd[i]; upd[i * 2 + 2] += upd[i]; } upd[i] = 0; } if (s > e || s > u || e < l) { return Long.MIN_VALUE; } if (s >= l && e <= u) { return max[i]; } return Long.max(max(2*i+1, s, (s+e)/2, l, u), max(2*i+2, (s+e)/2+1, e, l, u)); } static class art implements Comparable<art>{ int a; long s; art (int x, long y) { a = x; s = y; } public int compareTo(art o) { if (s < o.s) { return -1; } if (s == o.s) { return 0; } return 1; } } public static void main(String[] args) throws IOException { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); PrintWriter pw = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out))); n = Integer.parseInt(br.readLine()); PriorityQueue<art> pq = new PriorityQueue<art>(); for (int i = 0; i < n; i++) { String[] line = br.readLine().split(" "); pq.add(new art(Integer.parseInt(line[1]), Long.parseLong(line[0]))); } long size = pq.peek().s; long ans = 0; for (int i = 0; i < n; i++) { art c = pq.poll(); upd(0, i, size-c.s); upd(0, i, c.a); ans = Long.max(ans, max(0, i)); size = c.s; } pw.println(ans); pw.close(); }}
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1 error