Submission #1131284
Source Code Expand
#include <cstdio> #include <cstdlib> #include <cstring> #include <iostream> #include <vector> #include <string> #include <algorithm> #include <stack> #include <queue> #include <set> #include <map> using namespace std; #define MOD 1000000007 #define ADD(X,Y) ((X) = ((X) + (Y)%MOD) % MOD) typedef long long i64; typedef vector<int> ivec; typedef vector<string> svec; int N, X[101010]; int ki[101010]; int main() { scanf("%d", &N); for (int i = 0; i < N; ++i) scanf("%d", X + i); int pos = 0; for (int i = 0; i < N; ++i) { for (;;) { if (pos == N) break; if ((pos - i) * 2 >= X[pos]) { ++pos; break; } ++pos; } ki[i] = pos; } i64 ret = 1; for (int i = 0; i < N; ++i) { ret *= ki[i] - i; ret %= MOD; } printf("%lld\n", ret); return 0; }
Submission Info
Submission Time | |
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Task | A - Robot Racing |
User | semiexp |
Language | C++14 (GCC 5.4.1) |
Score | 900 |
Code Size | 820 Byte |
Status | AC |
Exec Time | 13 ms |
Memory | 1024 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:22:17: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &N); ^ ./Main.cpp:23:48: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 0; i < N; ++i) scanf("%d", X + i); ^
Judge Result
Set Name | Sample | Subtask | All | ||||||
---|---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 500 / 500 | 400 / 400 | ||||||
Status |
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Set Name | Test Cases |
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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 | 11 ms | 1024 KB |
2_01.txt | AC | 11 ms | 1024 KB |
2_02.txt | AC | 13 ms | 1024 KB |
2_03.txt | AC | 11 ms | 1024 KB |
2_04.txt | AC | 11 ms | 1024 KB |
2_05.txt | AC | 11 ms | 1024 KB |
2_06.txt | AC | 11 ms | 1024 KB |
2_07.txt | AC | 11 ms | 1024 KB |
2_08.txt | AC | 11 ms | 1024 KB |
2_09.txt | AC | 11 ms | 1024 KB |
2_10.txt | AC | 11 ms | 1024 KB |
2_11.txt | AC | 13 ms | 1024 KB |
2_12.txt | AC | 13 ms | 1024 KB |