Submission #1365406
Source Code Expand
#include <bits/stdc++.h> #define xx first #define yy second #define mp make_pair #define pb push_back #define fill(x, y) memset(x, y, sizeof x) #define copy(x, y) memcpy(x, y, sizeof x) using namespace std; typedef long long LL; typedef pair < int, int > pa; inline int read() { int sc = 0, f = 1; char ch = getchar(); while (ch < '0' || ch > '9') { if (ch == '-') f = -1; ch = getchar(); } while (ch >= '0' && ch <= '9') sc = sc * 10 + ch - '0', ch = getchar(); return sc * f; } const int MAXN = 100005; const int mod = 1e9 + 7; int n, m, ans = 1, a[MAXN], b[MAXN]; int main() { #ifdef wxh010910 freopen("data.in", "r", stdin); #endif n = read(); for (int i = 1; i <= n; i ++) a[i] = read(); b[m = 1] = 1; for (int i = 2; i <= n; i ++) if (a[i] ^ b[m] + 1) b[m + 1] = b[m] + 2, m ++; else ans = 1LL * ans * (m + 1) % mod; for (int i = 1; i <= m; i ++) ans = 1LL * ans * i % mod; return printf("%d\n", ans), 0; }
Submission Info
Submission Time | |
---|---|
Task | A - Robot Racing |
User | wxh010910 |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 976 Byte |
Status | AC |
Exec Time | 9 ms |
Memory | 1024 KB |
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | 400 / 400 | ||||||
Status |
|
|
|
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 | AC | 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 | AC | 6 ms | 896 KB |
2_01.txt | AC | 7 ms | 1024 KB |
2_02.txt | AC | 9 ms | 1024 KB |
2_03.txt | AC | 7 ms | 896 KB |
2_04.txt | AC | 7 ms | 1024 KB |
2_05.txt | AC | 7 ms | 1024 KB |
2_06.txt | AC | 7 ms | 1024 KB |
2_07.txt | AC | 7 ms | 1024 KB |
2_08.txt | AC | 7 ms | 1024 KB |
2_09.txt | AC | 7 ms | 1024 KB |
2_10.txt | AC | 7 ms | 1024 KB |
2_11.txt | AC | 9 ms | 1024 KB |
2_12.txt | AC | 9 ms | 1024 KB |