#include <iostream>
#include <algorithm>
#include <vector>
#define int long long
using namespace std;
const int NMAX=1e6+505;
int cnt,ine[2][NMAX+5],lv[NMAX+5],ar[4*NMAX+505],n,t[2][NMAX+5],cen[2],invine[2][NMAX+5],k,q,T,id[NMAX+5],dp[NMAX+5],rmq[25][NMAX+5],imp[NMAX+5],invid[NMAX+5],rr[2][NMAX+5];
vector <int> v[2][NMAX+5];
pair<pair<int,int>,pair<int,int>> ras[NMAX+5];
void dfs(int nod,int tata,int ind)
{
++cnt;
ine[ind][nod]=cnt;
if (ind==0) lv[nod]=lv[tata]+1;
for (int i=0;i<v[ind][nod].size();++i)
{
if (v[ind][nod][i]!=tata)
{
dfs(v[ind][nod][i],nod,ind);
}
}
}
void read(int ind)
{
for (int i=1;i<=n;++i)
{
cin>>t[ind][i];
if (t[ind][i]==-1) cen[ind]=i;
else {v[ind][t[ind][i]].push_back(i);}
}
cnt=0;
dfs(cen[ind],0,ind);
for (int i=1;i<=n;++i)
{
invine[ind][ine[ind][i]]=i;
}
}
int cmp(int x,int y)
{
return ine[1][x]<ine[1][y];
}
void update(int st,int dr,int nod,int poz,int val)
{
if (st==dr)
{
ar[nod]=val;
return ;
}
int mij=(st+dr)/2;
if (poz<=mij) update(st,mij,nod*2,poz,val);
else update(mij+1,dr,nod*2+1,poz,val);
ar[nod]=ar[nod*2]+ar[nod*2+1];
}
int query(int st,int dr,int nod,int qa,int qb)
{
if (qa<=st&&dr<=qb)
{
return ar[nod];
}
int mij=(st+dr)/2,ras1=0,ras2=0;
if (qa<=mij) ras1=query(st,mij,nod*2,qa,qb);
if (qb>mij) ras2=query(mij+1,dr,nod*2+1,qa,qb);
return ras1+ras2;
}
void solve1()
{
for (int i=2;i<k;++i)
{
update(1,k,1,i,ras[i].second.first-ras[i-1].second.second);
}
}
void solve0()
{
int ii=0;
for (int i=1;i<=k;++i)
{
if (id[i]==cen[0]) {ii=i;}
}
dp[ii]=0;
for (int i=ii+1;i<=k;++i)
{
dp[i]=dp[i-1]-ras[i-1].first.first+ras[i-1].first.second;
}
for (int i=ii-1;i>=1;--i)
{
dp[i]=dp[i+1]-ras[i].first.second+ras[i].first.first;
}
}
void makermq()
{
for (int i=1;i<=n;++i)
{
if (t[0][i]==-1) rmq[0][i]=0;
else rmq[0][i]=t[0][i];
}
for (int j=1;j<=20;++j)
{
for (int i=1;i<=n;++i)
{
rmq[j][i]=rmq[j-1][rmq[j-1][i]];
}
}
}
int lca(int x,int y)
{
x=id[x];
y=id[y];
if (lv[x]>lv[y]) swap(x,y);
for (int i=20;i>=0;--i) {if (lv[x]+(1<<i)<=lv[y]) {y=rmq[i][y];}}
if (x==y) return invid[x];
for (int i=20;i>=0;--i) {if (rmq[i][x]!=rmq[i][y]) {x=rmq[i][x]; y=rmq[i][y];}}
return invid[x];
}
signed main()
{
cin>>n>>k>>q>>T;
read(0);
read(1);
for (int i=1;i<=k;++i)
{
imp[i]=invine[0][i];
cout<<imp[i]<<" ";
cout.flush();
}
for (int i=1;i<=k;++i)
{
id[i]=imp[i];
}
sort(id+1,id+k+1,cmp);
for (int i=1;i<=k;++i)
{
invid[id[i]]=i;
}
for (int i=1;i<k;++i)
{
cout<<"? "<<id[i]<<" "<<id[i+1]<<'\n';
}
cout<<"!";
cout.flush();
for (int i=1;i<k;++i)
{
cin>>ras[i].first.first>>ras[i].first.second>>ras[i].second.first>>ras[i].second.second;
}
solve0();
solve1();
makermq();
for (int i=1;i<=T;++i)
{
int x,y;
cin>>x>>y;
x=invid[x];
y=invid[y];
if (x>y) swap(x,y);
rr[1][i]=ras[x].second.first+ras[y-1].second.second+((x>=y-1) ? 0 : query(1,k,1,x+1,y-1));
rr[0][i]=dp[x]+dp[y]-2*dp[lca(x,y)];
}
for (int i=1;i<=T;++i)
cout<<rr[0][i]<<" "<<rr[1][i]<<'\n';
cout.flush();
return 0;
}
Compilation message
Main.cpp: In function 'void dfs(long long int, long long int, long long int)':
Main.cpp:15:19: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
15 | for (int i=0;i<v[ind][nod].size();++i)
| ~^~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
484 ms |
163580 KB |
Time limit exceeded (wall clock) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
692 ms |
163580 KB |
Time limit exceeded (wall clock) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
556 ms |
163572 KB |
Time limit exceeded (wall clock) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1032 ms |
234236 KB |
Time limit exceeded (wall clock) |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
1235 ms |
240500 KB |
Time limit exceeded (wall clock) |
| 2 |
Halted |
0 ms |
0 KB |
- |
