oj.uz

Submission #480709

# Submission time Handle Problem Language Result Execution time Memory
480709 2021-10-17T22:56:54 Z Toinfinity1 Fancy Fence (CEOI20_fancyfence) Java 11
100 / 100
 519 ms 25808 KB 
import java.io.*;
import java.util.*;

public class fancyfence
{
	static class InputReader {
		BufferedReader reader;
		StringTokenizer tokenizer;
		public InputReader(InputStream stream) {
			reader = new BufferedReader(new InputStreamReader(stream), 32768);
			tokenizer = null;
		}
		String next() { // reads in the next string
			while (tokenizer == null || !tokenizer.hasMoreTokens()) {
				try {
					tokenizer = new StringTokenizer(reader.readLine());
				} catch (IOException e) {
					throw new RuntimeException(e);
				}
			}
			return tokenizer.nextToken();
		}
		public int nextInt() { // reads in the next int
			return Integer.parseInt(next());
		}
		public long nextLong() { // reads in the next long
			return Long.parseLong(next());
		}
		public double nextDouble() { // reads in the next double
			return Double.parseDouble(next());
			}
		}
	static long m = 1000000007;
	static InputReader r = new InputReader(System.in);
	static PrintWriter pw = new PrintWriter(System.out);
	public static void main(String[] args)
	{
		int n = r.nextInt();
		Stack<Integer> stack = new Stack<Integer>();
		long[] h = new long[n+1]; long[] w = new long[n+1]; long[] total = new long[n+1]; long tot = 0;
		for (int i = 1; i <= n; i ++)
		{
			h[i] = r.nextLong();
		}
		for (int i = 1; i <= n; i ++)
		{
			w[i] = r.nextLong();
		}
		long ans = 0;
		stack.add(0);
		for (int i = 1; i <= n; i ++)
		{
			long remove = 0;
			while (h[stack.peek()] >= h[i])
			{
				int j = stack.pop();
				remove += w[j]; remove%=m;
			}
			long x = ((h[i])*(h[i]+1))/2; x%=m; long y = ((w[i])*(w[i]+1))/2; y%=m;
			tot = total[stack.peek()] + (remove*x)%m;
			tot%=m;
			ans += (tot*w[i])%m; ans%=m;
			ans += (x*y)%m; ans%=m;
			total[i] = tot + (w[i]*x)%m; total[i]%=m;
			w[i] += remove; w[i]%=m;
			stack.add(i);
		}
		pw.println(ans);
		pw.close();
	}
}

Subtask #1
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 8548 KB Output is correct
2 Correct 159 ms 11668 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 66 ms 8364 KB Output is correct
2 Correct 79 ms 8384 KB Output is correct
3 Correct 69 ms 8424 KB Output is correct
4 Correct 71 ms 8536 KB Output is correct
5 Correct 84 ms 8640 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 65 ms 8480 KB Output is correct
2 Correct 119 ms 9192 KB Output is correct
3 Correct 472 ms 16724 KB Output is correct
4 Correct 471 ms 20112 KB Output is correct
5 Correct 446 ms 20240 KB Output is correct
6 Correct 507 ms 20184 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 166 ms 11528 KB Output is correct
2 Correct 398 ms 14908 KB Output is correct
3 Correct 426 ms 18612 KB Output is correct
4 Correct 440 ms 23748 KB Output is correct
5 Correct 463 ms 25708 KB Output is correct
6 Correct 69 ms 8584 KB Output is correct

Subtask #5
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 76 ms 8324 KB Output is correct
2 Correct 167 ms 11804 KB Output is correct
3 Correct 384 ms 14868 KB Output is correct
4 Correct 419 ms 18672 KB Output is correct
5 Correct 433 ms 23720 KB Output is correct
6 Correct 459 ms 25808 KB Output is correct
7 Correct 162 ms 11764 KB Output is correct
8 Correct 386 ms 14884 KB Output is correct
9 Correct 423 ms 19208 KB Output is correct
10 Correct 439 ms 23704 KB Output is correct
11 Correct 519 ms 24564 KB Output is correct
12 Correct 72 ms 8432 KB Output is correct

Subtask #6
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 8380 KB Output is correct
2 Correct 164 ms 11440 KB Output is correct
3 Correct 84 ms 8472 KB Output is correct
4 Correct 74 ms 8456 KB Output is correct
5 Correct 68 ms 8444 KB Output is correct
6 Correct 68 ms 8456 KB Output is correct
7 Correct 69 ms 8436 KB Output is correct
8 Correct 106 ms 9384 KB Output is correct
9 Correct 211 ms 11512 KB Output is correct
10 Correct 165 ms 11712 KB Output is correct
11 Correct 72 ms 8544 KB Output is correct
12 Correct 87 ms 8540 KB Output is correct
13 Correct 183 ms 11656 KB Output is correct
14 Correct 180 ms 11852 KB Output is correct
15 Correct 182 ms 11580 KB Output is correct
16 Correct 70 ms 8520 KB Output is correct

Subtask #7
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 63 ms 8548 KB Output is correct
2 Correct 159 ms 11668 KB Output is correct
3 Correct 72 ms 8540 KB Output is correct
4 Correct 163 ms 11740 KB Output is correct
5 Correct 67 ms 8288 KB Output is correct
6 Correct 72 ms 8200 KB Output is correct
7 Correct 74 ms 8404 KB Output is correct
8 Correct 79 ms 8204 KB Output is correct
9 Correct 67 ms 8600 KB Output is correct
10 Correct 104 ms 9328 KB Output is correct
11 Correct 454 ms 16844 KB Output is correct
12 Correct 460 ms 20032 KB Output is correct
13 Correct 490 ms 20160 KB Output is correct
14 Correct 450 ms 20180 KB Output is correct
15 Correct 178 ms 11748 KB Output is correct
16 Correct 391 ms 14804 KB Output is correct
17 Correct 461 ms 18444 KB Output is correct
18 Correct 448 ms 23796 KB Output is correct
19 Correct 445 ms 25676 KB Output is correct
20 Correct 181 ms 11588 KB Output is correct
21 Correct 354 ms 14932 KB Output is correct
22 Correct 429 ms 19376 KB Output is correct
23 Correct 436 ms 23752 KB Output is correct
24 Correct 457 ms 24668 KB Output is correct
25 Correct 94 ms 8248 KB Output is correct
26 Correct 89 ms 8508 KB Output is correct
27 Correct 160 ms 11616 KB Output is correct
28 Correct 174 ms 11672 KB Output is correct
29 Correct 180 ms 11516 KB Output is correct
30 Correct 373 ms 14780 KB Output is correct
31 Correct 368 ms 14876 KB Output is correct
32 Correct 420 ms 17608 KB Output is correct
33 Correct 425 ms 17556 KB Output is correct
34 Correct 476 ms 23604 KB Output is correct
35 Correct 440 ms 23576 KB Output is correct
36 Correct 480 ms 24468 KB Output is correct
37 Correct 475 ms 23916 KB Output is correct
38 Correct 62 ms 8360 KB Output is correct
39 Correct 444 ms 23940 KB Output is correct
40 Correct 436 ms 23828 KB Output is correct
41 Correct 462 ms 23944 KB Output is correct
42 Correct 472 ms 24240 KB Output is correct