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Submission #385744

# Submission time Handle Problem Language Result Execution time Memory
385744 2021-04-04T20:58:17 Z dapig Calvinball championship (CEOI15_teams) Java 11
10 / 100
 318 ms 65536 KB 
//package week4;

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

class teams {

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

		teams obj = new teams();

		obj.doStuff();

	}

	int[][] grid; // [pos] [number of valid ways if at cur pos and max val is #]
	int[] vals;
	private void doStuff() throws IOException {

		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int len = Integer.parseInt(br.readLine());
		StringTokenizer st = new StringTokenizer(br.readLine());
		vals = new int[len];
		for (int i = 0; i < vals.length; i++) {
			vals[i] = Integer.parseInt(st.nextToken());
		}
		br.close();

		grid = new int[vals.length][vals.length+1];
		Arrays.fill(grid[grid.length-1], 1);
		grid[grid.length-1][0] = 0;
		for (int i = 1; i < grid[0].length; i++) {
			grid[grid.length-1][i] += grid[grid.length-1][i-1];
		}
		for (int i = grid.length-2; i >= 0; i--) {
			for (int j = 1; j <= i+1; j++) {
				grid[i][j] = (grid[i+1][j+1]+grid[i][j-1])%1000007;
			}
		}
		int ans = 1;
		for (int i = 0; i < vals.length; i++) {
			ans += grid[i][vals[i]-1];
			ans %= 1000007;
		}
		System.out.println(ans);

	}

}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 70 ms 8808 KB Output is correct
2 Correct 85 ms 8428 KB Output is correct
3 Correct 71 ms 8556 KB Output is correct
4 Correct 71 ms 8528 KB Output is correct
5 Correct 70 ms 8548 KB Output is correct
6 Correct 72 ms 8552 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 71 ms 8556 KB Output is correct
2 Incorrect 72 ms 8320 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 74 ms 8668 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 84 ms 8532 KB Output isn't correct

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 77 ms 8460 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 103 ms 10604 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 111 ms 15580 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 304 ms 65536 KB Execution killed with signal 9

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 181 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Runtime error 318 ms 65536 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -