# | Time | Username | Problem | Language | Result | Execution time | Memory |
---|---|---|---|---|---|---|---|
707173 | Tuanlinh123 | ICC (CEOI16_icc) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
#include<bits/stdc++.h>
#include "stress.cpp"
#define ll int
#define ld long double
#define pll pair<ll,ll>
#define mp make_pair
#define pb push_back
#define fi first
#define se second
using namespace std;
ll a[105], pa[105], Rank[105];
ll Find(ll i)
{
if (pa[i]!=i)
pa[i]=Find(pa[i]);
return pa[i];
}
void Union(ll a, ll b)
{
ll Pa=Find(a), Pb=Find(b);
if (Pa==Pb) return;
if (Rank[Pa]<Rank[Pb]) swap(Pa, Pb);
if (Rank[Pa]==Rank[Pb]) Rank[Pa]++;
pa[Pb]=Pa;
}
ll ask(vector <ll> a, vector <ll> b)
{
ll n=a.size(), m=b.size();
ll A[n], B[m];
for (ll i=0; i<a.size(); i++)
A[i]=a[i];
for (ll i=0; i<b.size(); i++)
B[i]=b[i];
return query(n, m, A, B);
}
void run(ll n)
{
for (ll i=1; i<=n; i++)
pa[i]=i, a[i-1]=i;
ll lg=32-__builtin_clz(n);
for (ll k=1; k<n; k++)
{
for (ll i=0; i<lg; i++)
{
vector <ll> A, B;
for (ll j=0; j<n; j++)
{
ll Pj=Find(a[j]);
if (Pj&1<<i)
A.pb(a[j]);
else B.pb(a[j]);
}
if (!ask(A, B))
continue;
ll loA=0, hiA=A.size()-1;
while (hiA>loA)
{
ll midA=(hiA+loA)/2;
vector <ll> Anew(A.begin()+loA, A.begin()+hiA);
if (ask(Anew, B))
hiA=midA;
else loA=midA+1;
}
ll loB=0, hiB=B.size()-1;
while (hiB>loB)
{
ll midB=(hiB+loB)/2;
vector <ll> Bnew(B.begin()+loB, B.begin()+hiB);
if (ask(A, Bnew))
hiB=midB;
else loB=midB+1;
}
setRoad(A[loA], B[loB]);
Union(A[loA], B[loB]);
break;
}
}
}