답안 #366060

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
366060	2021-02-12T22:32:27 Z	dapig	Global Warming (CEOI18_glo)	Java 11	100 / 100	432 ms	29104 KB

glo

import java.io.*;
import java.util.*;

class glo {

	public static void main(String[] args) throws IOException {

		glo obj = new glo();

		obj.doStuff();

	}
	
	int binsearch(int val) {
		int l = 0, r = this.r;
		while (l < r) {
			int m = (l+r)/2;
			if (val < maxlist[m]) {
				if (val >= maxlist[m+1]) return m;
				l = m+1;
			} else r=m;
		}
		return l;
	}
	
	int[] maxlist; int r = 0;
	int[][] changes;
	void create() {
		maxlist = new int[nums.length+1];
		changes = new int[nums.length][2];
		Arrays.fill(maxlist, Integer.MIN_VALUE);
		maxlist[0] = Integer.MAX_VALUE;
		for (int i = nums.length-1; i >= 0; i--) {
			int pos = binsearch(nums[i]);
			pos++; r = Math.max(r, pos);
			changes[i] = new int[] {pos, maxlist[pos]};
			maxlist[pos] = nums[i];
		}
	}
	
	int binsearch2(int val) {
		int l = 0, r = this.r2;
		while (l < r) {
			int m = (l+r)/2;
			if (val > lis[m]) {
				if (val <= lis[m+1]) return m;
				l=m+1;
			} else r=m;
		}
		return l;
	}
	
	int find(int val) {
		int l = 1, r = maxlist.length-1;
		while (l<r) {
			int m = (l+r)/2;
			if (val >= maxlist[m]) {
				if (val < maxlist[m-1]) return m;
				r = m;
			} else l = m+1;
		}
		return l;
	}
	
	int[] lis; int r2 = 0;
	int process() {
		int ans = r;
		lis = new int[changes.length+1];
		Arrays.fill(lis, Integer.MAX_VALUE);
		lis[0] = Integer.MIN_VALUE;
		for (int i = 0; i < changes.length-1; i++) {
			maxlist[changes[i][0]] = changes[i][1];
			int pos = binsearch2(nums[i]);
			pos++; r2 = Math.max(r2, pos);
			lis[pos] = nums[i];
			int res = find(nums[i]-max)-1;
			ans = Math.max(ans, pos+res);
		}
		return ans;
	}

	int[] nums; int max;
	private void doStuff() throws IOException {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		StringTokenizer st = new StringTokenizer(br.readLine());
		int n = Integer.parseInt(st.nextToken());
		max = Integer.parseInt(st.nextToken());
		nums = new int[n];
		st = new StringTokenizer(br.readLine());
		for (int i = 0; i < nums.length; i++) {
			nums[i] = Integer.parseInt(st.nextToken());
		}
		br.close();
		
		create();
		System.out.println(process());
		
	}

}

Subtask #1

5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	8532 KB	Output is correct
2	Correct	70 ms	8544 KB	Output is correct
3	Correct	82 ms	8556 KB	Output is correct
4	Correct	71 ms	8552 KB	Output is correct
5	Correct	70 ms	8556 KB	Output is correct
6	Correct	70 ms	8428 KB	Output is correct
7	Correct	72 ms	8668 KB	Output is correct
8	Correct	71 ms	8796 KB	Output is correct
9	Correct	74 ms	8560 KB	Output is correct
10	Correct	85 ms	8448 KB	Output is correct
11	Correct	73 ms	8448 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	8532 KB	Output is correct
2	Correct	70 ms	8544 KB	Output is correct
3	Correct	82 ms	8556 KB	Output is correct
4	Correct	71 ms	8552 KB	Output is correct
5	Correct	70 ms	8556 KB	Output is correct
6	Correct	70 ms	8428 KB	Output is correct
7	Correct	72 ms	8668 KB	Output is correct
8	Correct	71 ms	8796 KB	Output is correct
9	Correct	74 ms	8560 KB	Output is correct
10	Correct	85 ms	8448 KB	Output is correct
11	Correct	73 ms	8448 KB	Output is correct
12	Correct	73 ms	8428 KB	Output is correct
13	Correct	73 ms	8556 KB	Output is correct
14	Correct	75 ms	8556 KB	Output is correct
15	Correct	74 ms	8684 KB	Output is correct
16	Correct	71 ms	8540 KB	Output is correct
17	Correct	70 ms	8556 KB	Output is correct
18	Correct	69 ms	8556 KB	Output is correct

Subtask #3

13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	8532 KB	Output is correct
2	Correct	70 ms	8544 KB	Output is correct
3	Correct	82 ms	8556 KB	Output is correct
4	Correct	71 ms	8552 KB	Output is correct
5	Correct	70 ms	8556 KB	Output is correct
6	Correct	70 ms	8428 KB	Output is correct
7	Correct	72 ms	8668 KB	Output is correct
8	Correct	71 ms	8796 KB	Output is correct
9	Correct	74 ms	8560 KB	Output is correct
10	Correct	85 ms	8448 KB	Output is correct
11	Correct	73 ms	8448 KB	Output is correct
12	Correct	73 ms	8428 KB	Output is correct
13	Correct	73 ms	8556 KB	Output is correct
14	Correct	75 ms	8556 KB	Output is correct
15	Correct	74 ms	8684 KB	Output is correct
16	Correct	71 ms	8540 KB	Output is correct
17	Correct	70 ms	8556 KB	Output is correct
18	Correct	69 ms	8556 KB	Output is correct
19	Correct	94 ms	8684 KB	Output is correct
20	Correct	95 ms	8684 KB	Output is correct
21	Correct	97 ms	8808 KB	Output is correct
22	Correct	95 ms	8668 KB	Output is correct
23	Correct	89 ms	8684 KB	Output is correct
24	Correct	100 ms	8812 KB	Output is correct
25	Correct	102 ms	8812 KB	Output is correct
26	Correct	91 ms	8684 KB	Output is correct

Subtask #4

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	427 ms	26804 KB	Output is correct
2	Correct	410 ms	26464 KB	Output is correct
3	Correct	418 ms	26584 KB	Output is correct
4	Correct	412 ms	26616 KB	Output is correct
5	Correct	409 ms	26948 KB	Output is correct

Subtask #5

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	321 ms	16244 KB	Output is correct
2	Correct	326 ms	15988 KB	Output is correct
3	Correct	310 ms	16228 KB	Output is correct
4	Correct	329 ms	16636 KB	Output is correct
5	Correct	69 ms	8428 KB	Output is correct
6	Correct	321 ms	16608 KB	Output is correct
7	Correct	316 ms	16880 KB	Output is correct

Subtask #6

17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	361 ms	21072 KB	Output is correct
2	Correct	365 ms	20944 KB	Output is correct
3	Correct	405 ms	26504 KB	Output is correct
4	Correct	407 ms	26812 KB	Output is correct
5	Correct	357 ms	19672 KB	Output is correct
6	Correct	418 ms	28968 KB	Output is correct
7	Correct	407 ms	28900 KB	Output is correct
8	Correct	360 ms	22168 KB	Output is correct

Subtask #7

25.0 / 25.0

#	결과	실행 시간	메모리	Grader output
1	Correct	76 ms	8532 KB	Output is correct
2	Correct	70 ms	8544 KB	Output is correct
3	Correct	82 ms	8556 KB	Output is correct
4	Correct	71 ms	8552 KB	Output is correct
5	Correct	70 ms	8556 KB	Output is correct
6	Correct	70 ms	8428 KB	Output is correct
7	Correct	72 ms	8668 KB	Output is correct
8	Correct	71 ms	8796 KB	Output is correct
9	Correct	74 ms	8560 KB	Output is correct
10	Correct	85 ms	8448 KB	Output is correct
11	Correct	73 ms	8448 KB	Output is correct
12	Correct	73 ms	8428 KB	Output is correct
13	Correct	73 ms	8556 KB	Output is correct
14	Correct	75 ms	8556 KB	Output is correct
15	Correct	74 ms	8684 KB	Output is correct
16	Correct	71 ms	8540 KB	Output is correct
17	Correct	70 ms	8556 KB	Output is correct
18	Correct	69 ms	8556 KB	Output is correct
19	Correct	94 ms	8684 KB	Output is correct
20	Correct	95 ms	8684 KB	Output is correct
21	Correct	97 ms	8808 KB	Output is correct
22	Correct	95 ms	8668 KB	Output is correct
23	Correct	89 ms	8684 KB	Output is correct
24	Correct	100 ms	8812 KB	Output is correct
25	Correct	102 ms	8812 KB	Output is correct
26	Correct	91 ms	8684 KB	Output is correct
27	Correct	427 ms	26804 KB	Output is correct
28	Correct	410 ms	26464 KB	Output is correct
29	Correct	418 ms	26584 KB	Output is correct
30	Correct	412 ms	26616 KB	Output is correct
31	Correct	409 ms	26948 KB	Output is correct
32	Correct	321 ms	16244 KB	Output is correct
33	Correct	326 ms	15988 KB	Output is correct
34	Correct	310 ms	16228 KB	Output is correct
35	Correct	329 ms	16636 KB	Output is correct
36	Correct	69 ms	8428 KB	Output is correct
37	Correct	321 ms	16608 KB	Output is correct
38	Correct	316 ms	16880 KB	Output is correct
39	Correct	361 ms	21072 KB	Output is correct
40	Correct	365 ms	20944 KB	Output is correct
41	Correct	405 ms	26504 KB	Output is correct
42	Correct	407 ms	26812 KB	Output is correct
43	Correct	357 ms	19672 KB	Output is correct
44	Correct	418 ms	28968 KB	Output is correct
45	Correct	407 ms	28900 KB	Output is correct
46	Correct	360 ms	22168 KB	Output is correct
47	Correct	360 ms	21956 KB	Output is correct
48	Correct	381 ms	21772 KB	Output is correct
49	Correct	425 ms	28560 KB	Output is correct
50	Correct	407 ms	28036 KB	Output is correct
51	Correct	392 ms	22464 KB	Output is correct
52	Correct	398 ms	28104 KB	Output is correct
53	Correct	410 ms	28120 KB	Output is correct
54	Correct	432 ms	29104 KB	Output is correct
55	Correct	405 ms	29104 KB	Output is correct