Submission #1199865
Source Code Expand
#include <cstdio> #include <cstdlib> #include <algorithm> const int N = 100 + 10, MOD = 1000000007; int n, a[N]; int f[N][N][N]; int main() { scanf("%d", &n); for (int i = 1; i <= 2 * n - 1; ++i) scanf("%d", &a[i]); std::sort(a + 1, a + 2 * n); f[0][1][0] = 1; int ans = 0; for (int i = 0; i < n; ++i) { for (int j = 1; j < 2 * n; ++j) { for (int k = 0; k < j; ++k) { int cur = f[i][j][k]; if (!cur) continue; if (i == n - 1) { (ans += cur) %= MOD; continue; } int x = j, y = k; if (a[n - i - 1] != a[n - i]) ++x, ++y; if (a[n + i + 1] != a[n + i]) ++x; for (int p = 0; p < x; ++p) (f[i + 1][x - std::max(abs(p - y) - 1, 0)][p <= y ? p : (y + 1)] += cur) %= MOD; } } } printf("%d\n", ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | F - Prefix Median |
User | jiaqiyang |
Language | C++14 (GCC 5.4.1) |
Score | 2000 |
Code Size | 861 Byte |
Status | AC |
Exec Time | 21 ms |
Memory | 3200 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:11:18: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:12:58: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] for (int i = 1; i <= 2 * n - 1; ++i) scanf("%d", &a[i]); ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 2000 / 2000 | ||||
Status |
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|
Set Name | Test Cases |
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Sample | 00_example_01.txt, 00_example_02.txt, 00_example_03.txt |
All | 00_example_01.txt, 00_example_02.txt, 00_example_03.txt, 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, 51.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
00_example_01.txt | AC | 1 ms | 128 KB |
00_example_02.txt | AC | 1 ms | 128 KB |
00_example_03.txt | AC | 1 ms | 256 KB |
01.txt | AC | 21 ms | 3200 KB |
02.txt | AC | 16 ms | 3200 KB |
03.txt | AC | 3 ms | 640 KB |
04.txt | AC | 2 ms | 384 KB |
05.txt | AC | 1 ms | 384 KB |
06.txt | AC | 8 ms | 896 KB |
07.txt | AC | 21 ms | 3200 KB |
08.txt | AC | 1 ms | 384 KB |
09.txt | AC | 21 ms | 3200 KB |
10.txt | AC | 1 ms | 256 KB |
11.txt | AC | 1 ms | 256 KB |
12.txt | AC | 1 ms | 384 KB |
13.txt | AC | 6 ms | 768 KB |
14.txt | AC | 10 ms | 1024 KB |
15.txt | AC | 1 ms | 256 KB |
16.txt | AC | 7 ms | 2816 KB |
17.txt | AC | 1 ms | 256 KB |
18.txt | AC | 1 ms | 128 KB |
19.txt | AC | 1 ms | 128 KB |
20.txt | AC | 1 ms | 256 KB |
21.txt | AC | 1 ms | 256 KB |
22.txt | AC | 1 ms | 128 KB |
23.txt | AC | 1 ms | 512 KB |
24.txt | AC | 1 ms | 256 KB |
25.txt | AC | 1 ms | 512 KB |
26.txt | AC | 2 ms | 512 KB |
27.txt | AC | 1 ms | 256 KB |
28.txt | AC | 7 ms | 2944 KB |
29.txt | AC | 1 ms | 384 KB |
30.txt | AC | 2 ms | 512 KB |
31.txt | AC | 1 ms | 128 KB |
32.txt | AC | 1 ms | 512 KB |
33.txt | AC | 1 ms | 128 KB |
34.txt | AC | 1 ms | 384 KB |
35.txt | AC | 4 ms | 2816 KB |
36.txt | AC | 1 ms | 128 KB |
37.txt | AC | 6 ms | 2944 KB |
38.txt | AC | 2 ms | 512 KB |
39.txt | AC | 1 ms | 384 KB |
40.txt | AC | 1 ms | 256 KB |
41.txt | AC | 3 ms | 640 KB |
42.txt | AC | 8 ms | 2944 KB |
43.txt | AC | 1 ms | 256 KB |
44.txt | AC | 9 ms | 2944 KB |
45.txt | AC | 1 ms | 128 KB |
46.txt | AC | 1 ms | 256 KB |
47.txt | AC | 1 ms | 256 KB |
48.txt | AC | 3 ms | 640 KB |
49.txt | AC | 4 ms | 768 KB |
50.txt | AC | 1 ms | 128 KB |
51.txt | AC | 1 ms | 2432 KB |