#pragma GCC optimize("O3")
#pragma GCC target("tune=native")
#include <bits/stdc++.h>
using namespace std;
#define pii pair <int, int>
#define fi first
#define se second
#define mp make_pair
const int NM = 2e5, LOG = 18, BL = 50;
int n, m, q;
vector <int> adj[NM+5];
int dep[NM+5], timer = 0, tin[NM+5], tout[NM+5];
pii f[LOG+5][2*NM+5];
int lg[2*NM+5];
int a[NM+5], g[NM/BL+5];
int pref[NM+5], suff[NM+5];
vector <int> arr[NM/BL+5];
vector <int> st;
void dfs(int u, int p){
dep[u] = (p == -1 ? 0 : dep[p]+1);
tin[u] = ++timer;
f[0][timer] = mp(dep[u], u);
for (int v : adj[u]){
if (v == p) continue;
dfs(v, u);
f[0][++timer] = mp(dep[u], u);
}
tout[u] = timer;
}
void build_sparse(){
for (int i = 1; i <= LOG; i++)
for (int j = 1; j+(1<<i)-1 <= timer; j++)
f[i][j] = min(f[i-1][j], f[i-1][j+(1<<(i-1))]);
lg[1] = 0;
for (int i = 2; i <= timer; i++)
lg[i] = lg[i>>1]+1;
}
int lca(int u, int v){
int l = tin[u], r = tin[v];
if (l > r) swap(l, r);
int k = __lg(r-l+1);
return min(f[k][l], f[k][r-(1<<k)+1]).se;
}
bool is_ancestor(int a, int u){
return tin[a] <= tin[u] && tout[a] >= tout[u];
}
void build(int id){
arr[id].clear();
st.clear();
for (int i = id*BL; i < min((id+1)*BL, m); i++){
if (st.empty()){
st.push_back(a[i]);
arr[id].push_back(a[i]);
continue;
}
int tmp = lca(a[i], st.back());
while (!st.empty() && is_ancestor(tmp, st.back())) st.pop_back();
st.push_back(tmp);
arr[id].push_back(tmp);
if (tmp != a[i]){
st.push_back(a[i]);
arr[id].push_back(a[i]);
}
}
sort(arr[id].begin(), arr[id].end());
arr[id].erase(unique(arr[id].begin(), arr[id].end()), arr[id].end());
pref[id*BL] = a[id*BL];
for (int i = id*BL+1; i < min((id+1)*BL, m); i++)
pref[i] = lca(pref[i-1], a[i]);
suff[min((id+1)*BL, m)-1] = a[min((id+1)*BL, m)-1];
for (int i = min((id+1)*BL, m)-2; i >= id*BL; i--)
suff[i] = lca(suff[i+1], a[i]);
g[id] = suff[id*BL];
}
void preprocess(){
for (int i = 0; i*BL < m; i++){
build(i);
}
}
void update(int x, int val){
a[x] = val;
build(x/BL);
}
pii manual_query(int l, int r, int v){
for (int i = l; i <= r; i++)
if (is_ancestor(v, a[i])){
int cur = a[i], j = i;
while (j < r){
int ne = lca(cur, a[j+1]);
if (is_ancestor(v, ne)){
cur = ne;
j++;
}
else break;
}
if (cur == v) return mp(i, j);
i = j+1;
}
return mp(-1, -1);
}
pii query(int l, int r, int v){
int L = (l+BL-1)/BL, R = (r-BL+1)/BL;
if (l/BL == r/BL || L > R){
return manual_query(l, r, v);
}
for (int i = L; i <= R; i++)
if (arr[i].back() >= v && arr[i][lower_bound(arr[i].begin(), arr[i].end(), v)-arr[i].begin()] == v){
return manual_query(i*BL, min((i+1)*BL, m)-1, v);
}
pii tmp = manual_query(l, L*BL-1, v);
if (tmp.fi != -1) return tmp;
tmp = manual_query((R+1)*BL, r, v);
if (tmp.fi != -1) return tmp;
for (int i = L; i <= R+1; i++)
if (i <= R && is_ancestor(v, g[i])){
int j = i, cur = g[i];
while (j < R){
int ne = lca(cur, g[j+1]);
if (is_ancestor(v, ne)){
cur = ne;
j++;
}
else break;
}
if (cur == v){
return mp(i*BL, min((j+1)*BL, m)-1);
}
int lo = max(l, (i-1)*BL), hi = i*BL-1, resl = i*BL;
if (lo <= hi && is_ancestor(v, a[hi])){
while (lo <= hi){
int mid = (lo+hi)/2;
if (is_ancestor(v, suff[mid])){
resl = mid;
hi = mid-1;
}
else lo = mid+1;
}
}
if (resl < i*BL) cur = lca(cur, suff[resl]);
lo = (j+1)*BL, hi = min(r, (j+2)*BL-1);
int resr = (j+1)*BL-1;
if (lo <= hi && is_ancestor(v, a[lo])){
while (lo <= hi){
int mid = (lo+hi)/2;
if (is_ancestor(v, pref[mid])){
resr = mid;
lo = mid+1;
}
else hi = mid-1;
}
}
if (resr >= (j+1)*BL) cur = lca(cur, pref[resr]);
if (cur == v) return mp(resl, resr);
i = j;
}
else{
int lo = max(l, (i-1)*BL), hi = min(r, i*BL-1), resl = -1;
if (lo <= hi && is_ancestor(v, a[hi])){
while (lo <= hi){
int mid = (lo+hi)/2;
if (is_ancestor(v, suff[mid])){
resl = mid;
hi = mid-1;
}
else lo = mid+1;
}
}
if (resl == -1) continue;
lo = max(l, i*BL), hi = min(r, (i+1)*BL-1); int resr = -1;
if (lo <= hi && is_ancestor(v, a[lo])){
while (lo <= hi){
int mid = (lo+hi)/2;
if (is_ancestor(v, pref[mid])){
resr = mid;
lo = mid+1;
}
else hi = mid-1;
}
}
if (resr == -1) continue;
if (lca(suff[resl], pref[resr]) == v){
return mp(resl, resr);
}
}
return mp(-1, -1);
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n >> m >> q;
for (int i = 1; i < n; i++){
int u, v; cin >> u >> v;
adj[u].push_back(v);
adj[v].push_back(u);
}
dfs(1, -1);
build_sparse();
for (int i = 0; i < m; i++) cin >> a[i];
preprocess();
while (q--){
int type; cin >> type;
if (type == 1){
int pos, val; cin >> pos >> val;
update(pos-1, val);
}
else{
int l, r, v; cin >> l >> r >> v;
pii ans = query(l-1, r-1, v);
if (ans.fi != -1){
int cur = a[ans.fi];
for (int i = ans.fi+1; i <= ans.se; i++) cur = lca(cur, a[i]);
ans.fi++, ans.se++;
}
cout << ans.fi << ' ' << ans.se << '\n';
}
}
return 0;
}
Compilation message
In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/gthr.h:148,
from /usr/include/c++/10/ext/atomicity.h:35,
from /usr/include/c++/10/bits/ios_base.h:39,
from /usr/include/c++/10/ios:42,
from /usr/include/c++/10/istream:38,
from /usr/include/c++/10/sstream:38,
from /usr/include/c++/10/complex:45,
from /usr/include/c++/10/ccomplex:39,
from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:54,
from treearray.cpp:4:
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:102:1: error: attribute value 'tune=native' was already specified in 'target' attribute
102 | __gthrw(pthread_once)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:102:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:103:1: error: attribute value 'tune=native' was already specified in 'target' attribute
103 | __gthrw(pthread_getspecific)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:103:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:104:1: error: attribute value 'tune=native' was already specified in 'target' attribute
104 | __gthrw(pthread_setspecific)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:104:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:106:1: error: attribute value 'tune=native' was already specified in 'target' attribute
106 | __gthrw(pthread_create)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:106:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:107:1: error: attribute value 'tune=native' was already specified in 'target' attribute
107 | __gthrw(pthread_join)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:107:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:108:1: error: attribute value 'tune=native' was already specified in 'target' attribute
108 | __gthrw(pthread_equal)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:108:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:109:1: error: attribute value 'tune=native' was already specified in 'target' attribute
109 | __gthrw(pthread_self)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:109:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:110:1: error: attribute value 'tune=native' was already specified in 'target' attribute
110 | __gthrw(pthread_detach)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:110:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:112:1: error: attribute value 'tune=native' was already specified in 'target' attribute
112 | __gthrw(pthread_cancel)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:112:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:114:1: error: attribute value 'tune=native' was already specified in 'target' attribute
114 | __gthrw(sched_yield)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:114:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:116:1: error: attribute value 'tune=native' was already specified in 'target' attribute
116 | __gthrw(pthread_mutex_lock)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:116:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:117:1: error: attribute value 'tune=native' was already specified in 'target' attribute
117 | __gthrw(pthread_mutex_trylock)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:117:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:119:1: error: attribute value 'tune=native' was already specified in 'target' attribute
119 | __gthrw(pthread_mutex_timedlock)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:119:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:121:1: error: attribute value 'tune=native' was already specified in 'target' attribute
121 | __gthrw(pthread_mutex_unlock)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:121:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:122:1: error: attribute value 'tune=native' was already specified in 'target' attribute
122 | __gthrw(pthread_mutex_init)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:122:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:123:1: error: attribute value 'tune=native' was already specified in 'target' attribute
123 | __gthrw(pthread_mutex_destroy)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:123:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:125:1: error: attribute value 'tune=native' was already specified in 'target' attribute
125 | __gthrw(pthread_cond_init)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:125:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:126:1: error: attribute value 'tune=native' was already specified in 'target' attribute
126 | __gthrw(pthread_cond_broadcast)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:126:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:127:1: error: attribute value 'tune=native' was already specified in 'target' attribute
127 | __gthrw(pthread_cond_signal)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:127:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:128:1: error: attribute value 'tune=native' was already specified in 'target' attribute
128 | __gthrw(pthread_cond_wait)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:128:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:129:1: error: attribute value 'tune=native' was already specified in 'target' attribute
129 | __gthrw(pthread_cond_timedwait)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:129:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:130:1: error: attribute value 'tune=native' was already specified in 'target' attribute
130 | __gthrw(pthread_cond_destroy)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:130:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:132:1: error: attribute value 'tune=native' was already specified in 'target' attribute
132 | __gthrw(pthread_key_create)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:132:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:133:1: error: attribute value 'tune=native' was already specified in 'target' attribute
133 | __gthrw(pthread_key_delete)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:133:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:134:1: error: attribute value 'tune=native' was already specified in 'target' attribute
134 | __gthrw(pthread_mutexattr_init)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:134:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:135:1: error: attribute value 'tune=native' was already specified in 'target' attribute
135 | __gthrw(pthread_mutexattr_settype)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:135:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:136:1: error: attribute value 'tune=native' was already specified in 'target' attribute
136 | __gthrw(pthread_mutexattr_destroy)
| ^~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:136:1: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:237:10: error: attribute value 'tune=native' was already specified in 'target' attribute
237 | __gthrw2(__gthrw_(__pthread_key_create),
| ^~~~~~~~
/usr/include/x86_64-linux-gnu/c++/10/bits/gthr-default.h:237:10: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:73:3: error: attribute value 'tune=native' was already specified in 'target' attribute
73 | _GLIBCXX_GTHRW(rwlock_rdlock)
| ^~~~~~~~~~~~~~
/usr/include/c++/10/shared_mutex:73:3: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:74:3: error: attribute value 'tune=native' was already specified in 'target' attribute
74 | _GLIBCXX_GTHRW(rwlock_tryrdlock)
| ^~~~~~~~~~~~~~
/usr/include/c++/10/shared_mutex:74:3: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:75:3: error: attribute value 'tune=native' was already specified in 'target' attribute
75 | _GLIBCXX_GTHRW(rwlock_wrlock)
| ^~~~~~~~~~~~~~
/usr/include/c++/10/shared_mutex:75:3: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:76:3: error: attribute value 'tune=native' was already specified in 'target' attribute
76 | _GLIBCXX_GTHRW(rwlock_trywrlock)
| ^~~~~~~~~~~~~~
/usr/include/c++/10/shared_mutex:76:3: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:77:3: error: attribute value 'tune=native' was already specified in 'target' attribute
77 | _GLIBCXX_GTHRW(rwlock_unlock)
| ^~~~~~~~~~~~~~
/usr/include/c++/10/shared_mutex:77:3: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:91:4: error: attribute value 'tune=native' was already specified in 'target' attribute
91 | __gthrw(pthread_rwlock_timedrdlock);
| ^~~~~~~
/usr/include/c++/10/shared_mutex:91:4: error: attribute value 'tune=native' was already specified in 'target' attribute
/usr/include/c++/10/shared_mutex:101:4: error: attribute value 'tune=native' was already specified in 'target' attribute
101 | __gthrw(pthread_rwlock_timedwrlock);
| ^~~~~~~
/usr/include/c++/10/shared_mutex:101:4: error: attribute value 'tune=native' was already specified in 'target' attribute
