답안 #478902

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
478902	2021-10-09T04:39:13 Z	arwaeystoamneg	Group Photo (JOI21_ho_t3)	Java 11	64 / 100	5000 ms	15828 KB

Main

import java.util.*;
import java.io.*;
class segment_tree// "segment tree"
{
	int n;
	int[]a;
	segment_tree(int n)
	{
		this.n = n;
		a = new int[n];
	}
	void update(int i,int j)
	{
		a[i] = j;
	}
	int query(int i,int j)
	{
		int ans= 0;
		for(int k = i;k<j + 1;k++)ans += a[k];
		return ans;
	}
}
public class Main
{

	public static void main(String[]args)
	{
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int[] a= new int[n];
		for(int i = 0;i<n;i++) {a[i] = sc.nextInt();a[i]--;}
		int[]dp = new int[n + 1];
		for(int i= 0;i<n+1;i++)dp[i] = 1000000000;
		dp[n] = 0;
		for(int i= n;i>=0;i--)
		{
			int val = dp[i];
			ArrayList<Integer>b = new ArrayList<Integer>();
			for(int y:a)if(y<i)b.add(y);
			int[]idx = new int[i];
			for(int j = 0;j<i;j++)idx[b.get(j)] = j;
			segment_tree sum = new segment_tree(i);
			for(int j= i -1;j>=0;j--)
			{
				val += i - idx[j] - 1;
				val -=sum.query(0,idx[j]);
				sum.update(idx[j],1);
				dp[j] = Math.min(dp[j],val);
			}
			
		}
		System.out.println(dp[0]);
	}

}

Subtask #1
5.0 / 5.0

#	결과	실행 시간	메모리	Grader output
1	Correct	109 ms	10740 KB	Output is correct
2	Correct	115 ms	9928 KB	Output is correct
3	Correct	109 ms	10112 KB	Output is correct
4	Correct	117 ms	10220 KB	Output is correct
5	Correct	129 ms	10100 KB	Output is correct
6	Correct	109 ms	10216 KB	Output is correct
7	Correct	113 ms	10048 KB	Output is correct
8	Correct	117 ms	10196 KB	Output is correct
9	Correct	112 ms	10340 KB	Output is correct
10	Correct	113 ms	10092 KB	Output is correct

Subtask #2
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	109 ms	10740 KB	Output is correct
2	Correct	115 ms	9928 KB	Output is correct
3	Correct	109 ms	10112 KB	Output is correct
4	Correct	117 ms	10220 KB	Output is correct
5	Correct	129 ms	10100 KB	Output is correct
6	Correct	109 ms	10216 KB	Output is correct
7	Correct	113 ms	10048 KB	Output is correct
8	Correct	117 ms	10196 KB	Output is correct
9	Correct	112 ms	10340 KB	Output is correct
10	Correct	113 ms	10092 KB	Output is correct
11	Correct	121 ms	10176 KB	Output is correct
12	Correct	112 ms	10412 KB	Output is correct
13	Correct	110 ms	10272 KB	Output is correct
14	Correct	110 ms	10204 KB	Output is correct
15	Correct	111 ms	10056 KB	Output is correct
16	Correct	116 ms	10036 KB	Output is correct
17	Correct	119 ms	10052 KB	Output is correct
18	Correct	109 ms	10068 KB	Output is correct
19	Correct	115 ms	10384 KB	Output is correct
20	Correct	114 ms	10060 KB	Output is correct

Subtask #3
32.0 / 32.0

#	결과	실행 시간	메모리	Grader output
1	Correct	109 ms	10740 KB	Output is correct
2	Correct	115 ms	9928 KB	Output is correct
3	Correct	109 ms	10112 KB	Output is correct
4	Correct	117 ms	10220 KB	Output is correct
5	Correct	129 ms	10100 KB	Output is correct
6	Correct	109 ms	10216 KB	Output is correct
7	Correct	113 ms	10048 KB	Output is correct
8	Correct	117 ms	10196 KB	Output is correct
9	Correct	112 ms	10340 KB	Output is correct
10	Correct	113 ms	10092 KB	Output is correct
11	Correct	121 ms	10176 KB	Output is correct
12	Correct	112 ms	10412 KB	Output is correct
13	Correct	110 ms	10272 KB	Output is correct
14	Correct	110 ms	10204 KB	Output is correct
15	Correct	111 ms	10056 KB	Output is correct
16	Correct	116 ms	10036 KB	Output is correct
17	Correct	119 ms	10052 KB	Output is correct
18	Correct	109 ms	10068 KB	Output is correct
19	Correct	115 ms	10384 KB	Output is correct
20	Correct	114 ms	10060 KB	Output is correct
21	Correct	218 ms	13360 KB	Output is correct
22	Correct	203 ms	13276 KB	Output is correct
23	Correct	197 ms	13588 KB	Output is correct
24	Correct	220 ms	13392 KB	Output is correct
25	Correct	206 ms	13556 KB	Output is correct
26	Correct	197 ms	13664 KB	Output is correct
27	Correct	207 ms	13440 KB	Output is correct
28	Correct	218 ms	13436 KB	Output is correct
29	Correct	206 ms	13276 KB	Output is correct
30	Correct	209 ms	13400 KB	Output is correct

Subtask #4
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	109 ms	10740 KB	Output is correct
2	Correct	115 ms	9928 KB	Output is correct
3	Correct	109 ms	10112 KB	Output is correct
4	Correct	117 ms	10220 KB	Output is correct
5	Correct	129 ms	10100 KB	Output is correct
6	Correct	109 ms	10216 KB	Output is correct
7	Correct	113 ms	10048 KB	Output is correct
8	Correct	117 ms	10196 KB	Output is correct
9	Correct	112 ms	10340 KB	Output is correct
10	Correct	113 ms	10092 KB	Output is correct
11	Correct	121 ms	10176 KB	Output is correct
12	Correct	112 ms	10412 KB	Output is correct
13	Correct	110 ms	10272 KB	Output is correct
14	Correct	110 ms	10204 KB	Output is correct
15	Correct	111 ms	10056 KB	Output is correct
16	Correct	116 ms	10036 KB	Output is correct
17	Correct	119 ms	10052 KB	Output is correct
18	Correct	109 ms	10068 KB	Output is correct
19	Correct	115 ms	10384 KB	Output is correct
20	Correct	114 ms	10060 KB	Output is correct
21	Correct	218 ms	13360 KB	Output is correct
22	Correct	203 ms	13276 KB	Output is correct
23	Correct	197 ms	13588 KB	Output is correct
24	Correct	220 ms	13392 KB	Output is correct
25	Correct	206 ms	13556 KB	Output is correct
26	Correct	197 ms	13664 KB	Output is correct
27	Correct	207 ms	13440 KB	Output is correct
28	Correct	218 ms	13436 KB	Output is correct
29	Correct	206 ms	13276 KB	Output is correct
30	Correct	209 ms	13400 KB	Output is correct
31	Correct	297 ms	15144 KB	Output is correct
32	Correct	311 ms	14992 KB	Output is correct
33	Correct	302 ms	14744 KB	Output is correct
34	Correct	308 ms	15000 KB	Output is correct
35	Correct	316 ms	14864 KB	Output is correct
36	Correct	304 ms	14992 KB	Output is correct
37	Correct	309 ms	14648 KB	Output is correct
38	Correct	319 ms	14772 KB	Output is correct
39	Correct	306 ms	14808 KB	Output is correct
40	Correct	328 ms	14912 KB	Output is correct

Subtask #5
0 / 36.0

#	결과	실행 시간	메모리	Grader output
1	Correct	109 ms	10740 KB	Output is correct
2	Correct	115 ms	9928 KB	Output is correct
3	Correct	109 ms	10112 KB	Output is correct
4	Correct	117 ms	10220 KB	Output is correct
5	Correct	129 ms	10100 KB	Output is correct
6	Correct	109 ms	10216 KB	Output is correct
7	Correct	113 ms	10048 KB	Output is correct
8	Correct	117 ms	10196 KB	Output is correct
9	Correct	112 ms	10340 KB	Output is correct
10	Correct	113 ms	10092 KB	Output is correct
11	Correct	121 ms	10176 KB	Output is correct
12	Correct	112 ms	10412 KB	Output is correct
13	Correct	110 ms	10272 KB	Output is correct
14	Correct	110 ms	10204 KB	Output is correct
15	Correct	111 ms	10056 KB	Output is correct
16	Correct	116 ms	10036 KB	Output is correct
17	Correct	119 ms	10052 KB	Output is correct
18	Correct	109 ms	10068 KB	Output is correct
19	Correct	115 ms	10384 KB	Output is correct
20	Correct	114 ms	10060 KB	Output is correct
21	Correct	218 ms	13360 KB	Output is correct
22	Correct	203 ms	13276 KB	Output is correct
23	Correct	197 ms	13588 KB	Output is correct
24	Correct	220 ms	13392 KB	Output is correct
25	Correct	206 ms	13556 KB	Output is correct
26	Correct	197 ms	13664 KB	Output is correct
27	Correct	207 ms	13440 KB	Output is correct
28	Correct	218 ms	13436 KB	Output is correct
29	Correct	206 ms	13276 KB	Output is correct
30	Correct	209 ms	13400 KB	Output is correct
31	Correct	297 ms	15144 KB	Output is correct
32	Correct	311 ms	14992 KB	Output is correct
33	Correct	302 ms	14744 KB	Output is correct
34	Correct	308 ms	15000 KB	Output is correct
35	Correct	316 ms	14864 KB	Output is correct
36	Correct	304 ms	14992 KB	Output is correct
37	Correct	309 ms	14648 KB	Output is correct
38	Correct	319 ms	14772 KB	Output is correct
39	Correct	306 ms	14808 KB	Output is correct
40	Correct	328 ms	14912 KB	Output is correct
41	Execution timed out	5018 ms	15828 KB	Time limit exceeded
42	Halted	0 ms	0 KB	-

답안 #478902

Compilation message

Subtask #1 5.0 / 5.0

Subtask #2 7.0 / 7.0

Subtask #3 32.0 / 32.0

Subtask #4 20.0 / 20.0

Subtask #5 0 / 36.0

Subtask #1
5.0 / 5.0

Subtask #2
7.0 / 7.0

Subtask #3
32.0 / 32.0

Subtask #4
20.0 / 20.0

Subtask #5
0 / 36.0