Submission #1212912


Source Code Expand

#include <cstdlib>
#include <iostream>
int main(void) {
    const int mod = 1000000007;
    int n;
	while (std::cin >> n) {
		int ans = 1, stack = 0, *arr, *cnt;
		int fail = 0;
		arr = new int[n];
		cnt = new int[n];
		for (int i = 0; i < n; ++i) {
			std::cin >> arr[i];
			++cnt[(fail + 1) / 2];
			if (i == 0) {
				arr[0] = 1;
			}
			else {
				if (arr[i] >= arr[i - 1] + 2) {
					arr[i] = arr[i - 1] + 2;
				}
				if (arr[i - 1] + 1 == arr[i]) {
					++fail;
				}
			}
		}
		for (int i = 0; i < n; ++i) {
			stack += cnt[i];
			ans *= stack--;
			ans %= mod;
		}
		std::cout << ans << std::endl;
		delete[] arr;
		delete[] cnt;
	}
	return EXIT_SUCCESS;
}

Submission Info

Submission Time
Task A - Robot Racing
User s8079
Language C++14 (GCC 5.4.1)
Score 500
Code Size 699 Byte
Status WA
Exec Time 54 ms
Memory 896 KB

Judge Result

Set Name Sample Subtask All
Score / Max Score 0 / 0 500 / 500 0 / 400
Status
AC × 3
WA × 1
AC × 14
AC × 14
WA × 14
Set Name Test Cases
Sample 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt
Subtask 0_00.txt, 0_01.txt, 0_02.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt
All 0_00.txt, 0_01.txt, 0_02.txt, 0_03.txt, 1_00.txt, 1_01.txt, 1_02.txt, 1_03.txt, 1_04.txt, 1_05.txt, 1_06.txt, 1_07.txt, 1_08.txt, 1_09.txt, 1_10.txt, 2_00.txt, 2_01.txt, 2_02.txt, 2_03.txt, 2_04.txt, 2_05.txt, 2_06.txt, 2_07.txt, 2_08.txt, 2_09.txt, 2_10.txt, 2_11.txt, 2_12.txt
Case Name Status Exec Time Memory
0_00.txt AC 1 ms 256 KB
0_01.txt AC 1 ms 256 KB
0_02.txt AC 1 ms 256 KB
0_03.txt WA 1 ms 256 KB
1_00.txt AC 1 ms 256 KB
1_01.txt AC 1 ms 256 KB
1_02.txt AC 1 ms 256 KB
1_03.txt AC 1 ms 256 KB
1_04.txt AC 1 ms 256 KB
1_05.txt AC 1 ms 256 KB
1_06.txt AC 1 ms 256 KB
1_07.txt AC 1 ms 256 KB
1_08.txt AC 1 ms 256 KB
1_09.txt AC 1 ms 256 KB
1_10.txt AC 1 ms 256 KB
2_00.txt WA 37 ms 896 KB
2_01.txt WA 39 ms 640 KB
2_02.txt WA 54 ms 640 KB
2_03.txt WA 39 ms 768 KB
2_04.txt WA 39 ms 640 KB
2_05.txt WA 39 ms 640 KB
2_06.txt WA 38 ms 640 KB
2_07.txt WA 39 ms 640 KB
2_08.txt WA 40 ms 640 KB
2_09.txt WA 40 ms 640 KB
2_10.txt WA 38 ms 640 KB
2_11.txt WA 52 ms 640 KB
2_12.txt WA 54 ms 640 KB