#include <bits/stdc++.h>
#include <vector>
#include "library.h"
using namespace std;
#define vi vector<int>
#define pb push_back
int n;
struct sub
{
vi a;
sub(int x)
{
a = {x};
}
sub() {}
};
vector<sub> ar;
int query(vi x)
{
vi ret(n, 0);
for (auto u : x)
ret[u] = 1;
return Query(ret);
}
bool belong(sub x, int y)
{
x.a.pb(y);
return query(x.a) == 1;
}
bool belong2(sub x, int y)
{
int z = query(x.a);
x.a.pb(y);
return query(x.a) == z;
}
bool direction(sub x, int u)
{
vi tmp;
tmp.pb(x.a.back());
tmp.pb(u);
return query(tmp) == 1;
}
void merge(sub &x, int y)
{
if (direction(x, y) == 1)
{
x.a.pb(y);
}
else
{
vi add = {y};
x.a.insert(x.a.begin(), add.begin(), add.end());
}
}
int get(int lo, int hi, int i)
{
int ans = 0;
while (lo <= hi)
{
int mid = (lo + hi) >> 1;
vi qu(n, 0);
for (int j = lo; j <= mid; ++j)
{
for (auto u : ar[j].a)
qu[u] = 1;
}
int ask1 = Query(qu);
qu[i] = 1;
if (Query(qu) == ask1)
{
ans = mid;
hi = mid - 1;
}
else
lo = mid + 1;
}
return ans;
}
void Solve(int N)
{
n = N;
vi tmp(N, 0);
int comp = 0;
for (int i = 0; i < N; ++i)
{
tmp[i] = 1;
int y = Query(tmp);
if (y == comp + 1)
ar.pb(sub(i));
else if (y == comp)
merge(ar[get(0, (int)ar.size() - 1, i)], i);
else
{
int lo = 0, hi = (int)ar.size() - 2;
int ans = 0;
while (lo <= hi)
{
int mid = (lo + hi) >> 1;
sub lhs, rhs;
bool bl = 0, br = 0;
for (int j = 0; j < (int)ar.size(); ++j)
{
if (j <= mid)
lhs.a.insert(lhs.a.end(), ar[j].a.begin(), ar[j].a.end());
else
rhs.a.insert(rhs.a.end(), ar[j].a.begin(), ar[j].a.end());
}
bl = belong2(lhs, i);
br = belong2(rhs, i);
if (bl && br)
{
ans = mid;
break;
}
if (bl)
hi = mid - 1;
else
lo = mid + 1;
}
vi nei = {get(0, ans, i), get(ans + 1, (int)ar.size() - 1, i)};
sub ret;
if (!direction(ar[nei[0]], i))
reverse(ar[nei[0]].a.begin(), ar[nei[0]].a.end());
if (direction(ar[nei[1]], i))
reverse(ar[nei[1]].a.begin(), ar[nei[1]].a.end());
ret.a.insert(ret.a.end(), ar[nei[0]].a.begin(), ar[nei[0]].a.end());
ret.a.pb(i);
ret.a.insert(ret.a.end(), ar[nei[1]].a.begin(), ar[nei[1]].a.end());
vector<sub> nar;
for (int j = 0; j < (int)ar.size(); ++j)
{
if (j == nei[0] || j == nei[1])
continue;
nar.pb(ar[j]);
}
nar.pb(ret);
ar = nar;
}
comp = y;
}
// for (auto u : ar)
// {
// for (auto v : u.a)
// cout << ++v << " ";
// cout << "\n";
// }
// srand(time(0)) ;
// int arr[1000] ;
// iota(arr , arr + 1000 , 1) ;
// random_shuffle(arr , arr + 1000) ;
// for(int i = 0 ;i < 1000 ;++ i)cout<< arr[i] <<" " ;
// return ;
// for(auto u : ar[0].a)cout<< u <<" " ;
for (auto &u : ar[0].a)
++u;
Answer(ar[0].a);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
36 ms |
364 KB |
Wrong Answer [4] |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
36 ms |
364 KB |
Wrong Answer [4] |
| 2 |
Halted |
0 ms |
0 KB |
- |
