| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 296859 |
2020-09-11T01:52:08 Z |
eggag32 |
Library (JOI18_library) |
C++17 |
|
451 ms |
4504 KB |
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include "library.h"
using namespace std;
typedef long long ll;
typedef long double ld;
typedef vector<int> vi;
typedef pair<int, int> pi;
#define debug(x) cerr << #x << ": " << x << endl
#define debug2(x, y) debug(x), debug(y)
#define repn(i, a, b) for(int i = (int)(a); i < (int)(b); i++)
#define rep(i, a) for(int i = 0; i < (int)(a); i++)
#define all(v) v.begin(), v.end()
#define mp make_pair
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define fi first
#define se second
#define sq(x) ((x) * (x))
const int mxN = 1005;
template<class T> T gcd(T a, T b){ return ((b == 0) ? a : gcd(b, a % b)); }
mt19937 rng((ll)std::chrono::steady_clock::now().time_since_epoch().count());
int pos[mxN][mxN];
vi g[mxN];
void Solve(int n){
if(n == 1){
vi ans = {1};
Answer(ans);
return;
}
int sz = n / 31; //the size of our guess bucket
int num = (n * (n - 1)) / 2;
int rem = 20000;
memset(pos, -1, sizeof(pos));
while((num + 1200) > rem){
vi vis(n, 0), cr;
rep(k, sz){
while(true){
int ind = rng() % n;
if(!vis[ind]){
vis[ind] = 1;
cr.pb(ind);
break;
}
}
}
int ans = Query(vis);
if(ans == sz){
rep(i, cr.size()) rep(j, cr.size()) if(i != j && pos[cr[i]][cr[j]] == -1){
num--;
pos[cr[i]][cr[j]] = 0;
pos[cr[j]][cr[i]] = 0;
}
}
rem--;
}
vi nw(n, 0);
pi prev = {-1, -1};
rep(i, n) rep(j, n) if(i != j && pos[i][j] == -1){
if(prev.fi != -1) nw[prev.fi] = nw[prev.se] = 0;
nw[i] = nw[j] = 1;
prev = mp(i, j);
int ans = Query(nw);
if(ans == 1) pos[i][j] = pos[j][i] = 1;
else pos[i][j] = pos[j][i] = 0;
}
//now we know all the comparisons so we can just reconstruct the answer
int st = -1;
rep(i, n){
rep(j, n){
if(pos[i][j] == 1) g[i].pb(j);
}
if(g[i].size() == 1) st = i;
}
vi ans;
ans.pb(st + 1);
int nxt = g[st][0];
repn(i, 1, n){
ans.pb(nxt + 1);
rep(j, g[nxt].size()){
if((ans[(int)ans.size() - 2] - 1) != g[nxt][j]){
nxt = g[nxt][j];
break;
}
}
}
Answer(ans);
return;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
240 ms |
4472 KB |
# of queries: 18336 |
| 2 |
Correct |
226 ms |
4348 KB |
# of queries: 18145 |
| 3 |
Correct |
241 ms |
4344 KB |
# of queries: 18795 |
| 4 |
Correct |
270 ms |
4352 KB |
# of queries: 18795 |
| 5 |
Correct |
267 ms |
4344 KB |
# of queries: 18798 |
| 6 |
Correct |
318 ms |
4344 KB |
# of queries: 18795 |
| 7 |
Correct |
253 ms |
4348 KB |
# of queries: 18788 |
| 8 |
Correct |
201 ms |
4472 KB |
# of queries: 18528 |
| 9 |
Correct |
289 ms |
4344 KB |
# of queries: 18788 |
| 10 |
Correct |
131 ms |
4472 KB |
# of queries: 8256 |
| 11 |
Correct |
0 ms |
384 KB |
# of queries: 0 |
| 12 |
Correct |
3 ms |
4352 KB |
# of queries: 1 |
| 13 |
Correct |
3 ms |
4352 KB |
# of queries: 3 |
| 14 |
Correct |
3 ms |
4480 KB |
# of queries: 6 |
| 15 |
Correct |
4 ms |
4224 KB |
# of queries: 105 |
| 16 |
Correct |
8 ms |
4224 KB |
# of queries: 351 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
240 ms |
4472 KB |
# of queries: 18336 |
| 2 |
Correct |
226 ms |
4348 KB |
# of queries: 18145 |
| 3 |
Correct |
241 ms |
4344 KB |
# of queries: 18795 |
| 4 |
Correct |
270 ms |
4352 KB |
# of queries: 18795 |
| 5 |
Correct |
267 ms |
4344 KB |
# of queries: 18798 |
| 6 |
Correct |
318 ms |
4344 KB |
# of queries: 18795 |
| 7 |
Correct |
253 ms |
4348 KB |
# of queries: 18788 |
| 8 |
Correct |
201 ms |
4472 KB |
# of queries: 18528 |
| 9 |
Correct |
289 ms |
4344 KB |
# of queries: 18788 |
| 10 |
Correct |
131 ms |
4472 KB |
# of queries: 8256 |
| 11 |
Correct |
0 ms |
384 KB |
# of queries: 0 |
| 12 |
Correct |
3 ms |
4352 KB |
# of queries: 1 |
| 13 |
Correct |
3 ms |
4352 KB |
# of queries: 3 |
| 14 |
Correct |
3 ms |
4480 KB |
# of queries: 6 |
| 15 |
Correct |
4 ms |
4224 KB |
# of queries: 105 |
| 16 |
Correct |
8 ms |
4224 KB |
# of queries: 351 |
| 17 |
Correct |
451 ms |
4352 KB |
# of queries: 18799 |
| 18 |
Correct |
425 ms |
4504 KB |
# of queries: 18800 |
| 19 |
Correct |
402 ms |
4352 KB |
# of queries: 18799 |
| 20 |
Correct |
410 ms |
4472 KB |
# of queries: 18798 |
| 21 |
Correct |
405 ms |
4352 KB |
# of queries: 18797 |
| 22 |
Correct |
416 ms |
4352 KB |
# of queries: 18797 |
| 23 |
Correct |
398 ms |
4472 KB |
# of queries: 18798 |
| 24 |
Correct |
211 ms |
4480 KB |
# of queries: 18798 |
| 25 |
Correct |
425 ms |
4472 KB |
# of queries: 18799 |
| 26 |
Correct |
392 ms |
4352 KB |
# of queries: 18792 |
| 27 |
Correct |
290 ms |
4352 KB |
# of queries: 18796 |
| 28 |
Correct |
439 ms |
4472 KB |
# of queries: 18795 |
| 29 |
Correct |
397 ms |
4472 KB |
# of queries: 18796 |
| 30 |
Correct |
435 ms |
4352 KB |
# of queries: 18800 |
