#include <algorithm>
#include <iostream>
#include <fstream>
#include <climits>
#include <vector>
#include <deque>
#include <queue>
#include <stack>
#include <map>
#include <set>
#include <random>
#include <chrono>
// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using ull = unsigned long long;
using ll = long long;
//#define int __int128
//#define int ll
#define pii pair <int, int>
#define all(a) (a).begin(), (a).end()
#define fr first
#define sc second
#define pb push_back
#define lb lower_bound
#define ub upper_bound
#define vt vector
#define FOR(a, b) for(int i = (a); ((a) <= (b) ? i <= (b) : i >= (b));((a) <= (b) ? i++ : i--))
#define sz(x) (int)(x).size() // ?
#define YES fout << "YES\n"
#define NO fout << "NO\n"
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
int rangerng(int l, int r){
return uniform_int_distribution<>(l, r)(rng);
}
////////////////////////////////////////////////////////////////////////////////////
// ifstream fin("input.in");
// ofstream fout("output.out");
#define fin cin
#define fout cout
const int NMAX = 1e5; // ?
vt <int> adj[NMAX + 1];
int c[NMAX + 1];
vt <pii> quer[NMAX + 1];
int Ans[NMAX + 1];
int sz[NMAX + 1];
int par[NMAX + 1];
int hvChild[NMAX + 1];
int lvl[NMAX + 1];
void expl(int node, int parent){
//cout << ">>>>> " << node << endl;
par[node] = parent;
sz[node] = 1;
lvl[node] = lvl[parent] + 1;
//cout << ">>> " << node << endl;
int maxi = 0;
for(int child : adj[node]){
if(child != parent){
//cout << "== " << child << endl;
expl(child, node);
//cout << "??\n";
sz[node] += sz[child];
if(sz[child] > maxi){
maxi = sz[child];
hvChild[node] = child;
}
}
}
}
int Id = 0;
int id[NMAX + 1];
int head[NMAX + 1];
int last[NMAX + 1];
int Time = 0;
int pos[NMAX + 1];
void hvFirst(int node, int parent){
pos[node] = ++Time;
if(hvChild[parent] != node){
id[node] = ++Id;
head[Id] = node;
}else{
id[node] = id[parent];
}
last[id[node]] = node;
if(hvChild[node] != 0){
hvFirst(hvChild[node], node);
}
for(int child : adj[node]){
if(child != parent && child != hvChild[node]){
hvFirst(child, node);
}
}
}
namespace AIB{
int n;
int aib[NMAX + 2];
void init(int _n){
n = _n + 1;
FOR(1, n){
aib[i] = 0;
}
}
int lsb(int x){
return x & -x;
}
void update(int pos, int val){
pos++;
for(int i = pos; i <= n; i += lsb(i)){
aib[i] += val;
}
}
int query(int pos){
int ans = 0;
pos++;
for(int i = pos; i >= 1; i -= lsb(i)){
ans += aib[i];
}
return ans;
}
}
set <pair <pii, int>> S;
void setInterval(int l, int r, int x){
cout << 1 << endl;
vt <pair <pii, int>> toErase;
vt <pair <pii, int>> toInsert;
toInsert.pb({{l, r}, x});
for(auto it = S.lb({{l, 0}, 0}); it != S.end() && (*it).fr.fr <= r; it++){
pair <pii, int> obj = (*it);
toErase.pb(obj);
if(obj.fr.sc > r){
pair <pii, int> newObj = {{r + 1, obj.fr.sc}, obj.sc};
toInsert.pb(newObj);
}
}
auto it = S.lb({{l, 0}, 0});
if(!S.empty() && it != S.begin()){
it--;
pair <pii, int> obj = (*it);
if(obj.fr.fr < l && obj.fr.sc >= l){
toErase.pb(obj);
toInsert.pb({{obj.fr.fr, l - 1}, obj.sc});
if(obj.fr.sc > r){
toInsert.pb({{r + 1, obj.fr.sc}, obj.sc});
}
}
}
for(auto x : toErase){
if(S.find(x) != S.end()){
S.erase(x);
}
AIB::update(x.sc, -(x.fr.sc - x.fr.fr + 1));
}
for(auto x : toInsert){
S.insert(x);
AIB::update(x.sc, +(x.fr.sc - x.fr.fr + 1));
}
cout << 2 << endl;
}
void update(int a, int b, int x){
while(id[a] != id[b]){
if(lvl[head[id[a]]] > lvl[head[id[b]]]){
setInterval(pos[head[id[a]]], pos[a], x);
a = par[head[id[a]]];
}else{
setInterval(pos[head[id[b]]], pos[b], x);
b = par[head[id[b]]];
}
}
setInterval(min(pos[a], pos[b]), max(pos[a], pos[b]), x);
}
void solve(){
int n, m, q;
fin >> n >> m >> q;
FOR(1, n - 1){
int a, b;
fin >> a >> b;
adj[a].pb(b);
adj[b].pb(a);
}
FOR(1, m){
fin >> c[i];
}
//cout << 3 << endl;
FOR(1, q){
int x, y;
fin >> x >> y;
quer[y].pb({x, i});
}
//cout << 3 << endl;
expl(1, 0);
//cout << 3 << endl;
hvFirst(1, 0);
//cout << 3 << endl;
AIB::init(m);
//cout << 3 << endl;
FOR(1, Id){
S.insert({{pos[head[i]], pos[last[i]]}, 0});
AIB::update(0, pos[last[i]] - pos[head[i]] + 1);
}
FOR(1, m){
if(i > 1){
update(c[i - 1], c[i], i - 1);
}
update(c[i], c[i], i);
for(pii x : quer[i]){
Ans[x.sc] += AIB::query(m) - AIB::query(x.fr - 1);
}
}
for(int i = 1; i <= q; i++){
fout << Ans[i] << '\n';
}
}
signed main(){
ios_base::sync_with_stdio(false);
fin.tie(0);
int T;
//fin >> T;
T = 1;
while(T--){
solve();
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
7260 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
7260 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
7256 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
7256 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
7260 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
7260 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
