# |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
134028 |
2019-07-22T00:21:33 Z |
tutis |
Tents (JOI18_tents) |
C++17 |
|
2000 ms |
57812 KB |
/*input
4 3
*/
#pragma GCC optimize ("O3")
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
const ll modulo = 1000000007;
map<pair<ll, ll>, ll>M;
ll f(ll w, ll h)
{
if (w > h)
swap(w, h);
if (M.count({w, h}))
return M[ {w, h}];
if (w == 0)
return 1;
if (w == 1)
return h * (h - 1) / 2 + 4 * h + 1;
ll ret = f(w, h - 1);
ret += f(w - 2, h - 1) * ((w) * (w - 1) / 2);
ret %= modulo;
ret += f(w - 1, h - 1) * w * 4;
ret %= modulo;
ret += f(w - 1, h - 2) * w * (h - 1);
ret %= modulo;
return M[ {w, h}] = ret;
}
int main()
{
ios_base::sync_with_stdio(false);
ll w, h;
cin >> w >> h;
cout << (f(w, h) + modulo - 1) % modulo << "\n";
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
416 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
13 ms |
1196 KB |
Output is correct |
6 |
Correct |
14 ms |
1276 KB |
Output is correct |
7 |
Correct |
14 ms |
1184 KB |
Output is correct |
8 |
Correct |
12 ms |
1036 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
27 ms |
1912 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
26 ms |
1756 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
2 ms |
416 KB |
Output is correct |
2 |
Correct |
2 ms |
376 KB |
Output is correct |
3 |
Correct |
2 ms |
376 KB |
Output is correct |
4 |
Correct |
2 ms |
376 KB |
Output is correct |
5 |
Correct |
13 ms |
1196 KB |
Output is correct |
6 |
Correct |
14 ms |
1276 KB |
Output is correct |
7 |
Correct |
14 ms |
1184 KB |
Output is correct |
8 |
Correct |
12 ms |
1036 KB |
Output is correct |
9 |
Correct |
2 ms |
376 KB |
Output is correct |
10 |
Correct |
27 ms |
1912 KB |
Output is correct |
11 |
Correct |
3 ms |
504 KB |
Output is correct |
12 |
Correct |
26 ms |
1756 KB |
Output is correct |
13 |
Correct |
2 ms |
376 KB |
Output is correct |
14 |
Correct |
3 ms |
760 KB |
Output is correct |
15 |
Execution timed out |
2025 ms |
57812 KB |
Time limit exceeded |
16 |
Halted |
0 ms |
0 KB |
- |