#include <iostream>
#include <cstdio>
#include <algorithm>
#include <vector>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second
const int mxn = 1000;
int n, m;
pi dp[mxn][mxn][2][2], f[mxn][mxn][2][2];
vector<int> g[2][mxn];
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cin >> n >> m;
for(int i = 0, x; i < n; i++)
for(cin >> x; x; cin >> x)
for(int j = 0; j < 2; j++)
for(int l = 0; l < 2; l++){
int u = j * n + i, v = l * n + x - 1;
g[0][u].push_back(v);
g[1][v].push_back(u);
}
pi ret;
for(int i[2] = {0}; i[0] < 2 * n; i[0]++)
for(i[1] = i[0]; i[1] < 2 * n && i[1] - i[0] < n; i[1]++)
for(int j = 0; j < 2; j++)
for(int k = 0; k < 2; k++){
pi &dpc = dp[i[0]][i[1]][j][k];
if(i[0] != i[1]){
f[i[0]][i[1]][j][k] = max(dpc, f[i[0] + j][i[1] - !j][j][k]);
}else{
dpc.s = i[0];
}
for(int l : g[k][i[j]])
for(int p = 0; p < 2; p++){
if((l > i[p]) == p){
int ii[2];
ii[!p] = i[!p], ii[p] = l;
if(ii[1] - ii[0] < n){
dp[ii[0]][ii[1]][p][k] = max(dp[ii[0]][ii[1]][p][k], {dpc.f + 1, dpc.s});
ii[!p] = i[p];
pi ff[2];
ff[k] = dpc, ff[!k] = f[ii[0] + p][ii[1] - !p][p][!k];
ret = max(ret, {ff[0].f + ff[1].f + 1, ff[0].s});
}
}
}
}
cout << ret.f << " " << (ret.s % n + 1) << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
492 KB |
Output is correct |
| 2 |
Incorrect |
1 ms |
748 KB |
Output isn't correct |
| 3 |
Incorrect |
2 ms |
1004 KB |
Output isn't correct |
| 4 |
Incorrect |
5 ms |
1132 KB |
Output isn't correct |
| 5 |
Incorrect |
7 ms |
1516 KB |
Output isn't correct |
| 6 |
Incorrect |
9 ms |
1792 KB |
Output isn't correct |
| 7 |
Incorrect |
31 ms |
2156 KB |
Output isn't correct |
| 8 |
Incorrect |
14 ms |
2284 KB |
Output isn't correct |
| 9 |
Incorrect |
43 ms |
2796 KB |
Output isn't correct |
| 10 |
Incorrect |
126 ms |
3308 KB |
Output isn't correct |
| 11 |
Incorrect |
83 ms |
3212 KB |
Output isn't correct |
| 12 |
Incorrect |
198 ms |
7588 KB |
Output isn't correct |
| 13 |
Incorrect |
387 ms |
14060 KB |
Output isn't correct |
| 14 |
Incorrect |
716 ms |
22324 KB |
Output isn't correct |
| 15 |
Runtime error |
2777 ms |
33340 KB |
Memory limit exceeded |
| 16 |
Execution timed out |
3065 ms |
28364 KB |
Time limit exceeded |
| 17 |
Runtime error |
2959 ms |
33032 KB |
Memory limit exceeded |
| 18 |
Incorrect |
960 ms |
32284 KB |
Output isn't correct |
| 19 |
Execution timed out |
3091 ms |
24812 KB |
Time limit exceeded |
| 20 |
Execution timed out |
3084 ms |
24344 KB |
Time limit exceeded |
