Submission #173325


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import java.util.Scanner;


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();
		}

		long cases = 0;
		int prev = Integer.MIN_VALUE;
		int prevCount = 0;
		for (int i = 0; i < n; i++) {
			if (a[i] != -1 && prevCount == 0) {
				prev = a[i];
//				prevCount = 0;
				continue;
			} else if (a[i] != -1 && prevCount != 0){
				cases += conbination(a[i] - prev + prevCount, prevCount);
				prev = a[i];
				prevCount = 0;
				continue;
			} else {
				prevCount++;
				continue;
			}
		}

		System.out.println(cases);
		
		sc.close();
	}
	
	static long conbination(int n, int r) {
		r = Math.min(n - r, r);

		double result = 1;
		for (int i = n; i >= n - r + 1; i--) {
			result *= i;
		}
		for (int i = 1; i <= r; i++) {
			result /= i;
		}

		if (result == 1) {
			result = 0;
		}
		return (long)result;
	}
}

Submission Info

Submission Time
Task C - タコヤ木
User garnacha
Language Java (OpenJDK 1.7.0)
Score 0
Code Size 1023 Byte
Status WA
Exec Time 829 ms
Memory 26416 KB

Judge Result

Set Name Sample Subtask1 Subtask2 Subtask3
Score / Max Score 0 / 0 0 / 50 0 / 30 0 / 20
Status
AC × 2
WA × 1
AC × 3
WA × 11
AC × 5
WA × 21
AC × 4
WA × 32
Set Name Test Cases
Sample sample_01.txt, sample_02.txt, sample_03.txt
Subtask1 sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt
Subtask2 sample_01.txt, sample_02.txt, subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt
Subtask3 subtask1_01.txt, subtask1_02.txt, subtask1_03.txt, subtask1_04.txt, subtask1_05.txt, subtask1_06.txt, subtask1_07.txt, subtask1_08.txt, subtask1_09.txt, subtask1_10.txt, subtask1_11.txt, subtask1_12.txt, subtask2_01.txt, subtask2_02.txt, subtask2_03.txt, subtask2_04.txt, subtask2_05.txt, subtask2_06.txt, subtask2_07.txt, subtask2_08.txt, subtask2_09.txt, subtask2_10.txt, subtask2_11.txt, subtask2_12.txt, subtask3_01.txt, subtask3_02.txt, subtask3_03.txt, subtask3_04.txt, subtask3_05.txt, subtask3_06.txt, subtask3_07.txt, subtask3_08.txt, subtask3_09.txt, subtask3_10.txt, subtask3_11.txt, subtask3_12.txt
Case Name Status Exec Time Memory
sample_01.txt AC 829 ms 22460 KB
sample_02.txt AC 429 ms 22456 KB
sample_03.txt WA 441 ms 22572 KB
subtask1_01.txt WA 447 ms 22568 KB
subtask1_02.txt WA 457 ms 22460 KB
subtask1_03.txt AC 432 ms 22568 KB
subtask1_04.txt WA 442 ms 22968 KB
subtask1_05.txt WA 444 ms 22752 KB
subtask1_06.txt WA 440 ms 23000 KB
subtask1_07.txt WA 462 ms 22712 KB
subtask1_08.txt WA 447 ms 23096 KB
subtask1_09.txt WA 447 ms 22968 KB
subtask1_10.txt WA 454 ms 22932 KB
subtask1_11.txt WA 459 ms 22828 KB
subtask1_12.txt WA 441 ms 23004 KB
subtask2_01.txt WA 433 ms 22460 KB
subtask2_02.txt AC 474 ms 22460 KB
subtask2_03.txt AC 480 ms 22500 KB
subtask2_04.txt WA 544 ms 23512 KB
subtask2_05.txt WA 545 ms 24516 KB
subtask2_06.txt WA 488 ms 23644 KB
subtask2_07.txt WA 567 ms 24900 KB
subtask2_08.txt WA 564 ms 25268 KB
subtask2_09.txt WA 541 ms 24924 KB
subtask2_10.txt WA 550 ms 24928 KB
subtask2_11.txt WA 581 ms 25020 KB
subtask2_12.txt WA 548 ms 25020 KB
subtask3_01.txt WA 446 ms 22460 KB
subtask3_02.txt AC 464 ms 22556 KB
subtask3_03.txt WA 468 ms 22588 KB
subtask3_04.txt WA 572 ms 25624 KB
subtask3_05.txt WA 466 ms 23008 KB
subtask3_06.txt WA 559 ms 25500 KB
subtask3_07.txt WA 562 ms 24948 KB
subtask3_08.txt WA 580 ms 26084 KB
subtask3_09.txt WA 566 ms 25568 KB
subtask3_10.txt WA 574 ms 26416 KB
subtask3_11.txt WA 563 ms 24852 KB
subtask3_12.txt WA 577 ms 26352 KB