#include <bits/stdc++.h>
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define fast ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define all(v) v.begin(),v.end()
#define pb push_back
#define sz size()
#define ft first
#define sd second
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef unsigned long long ull;
const int N = 3e5 + 5;
const ll M = 1e8;
const ll inf = 1e3;
const ll mod = 1e9;
const double Pi = acos(-1);
ll binpow(ll x, ll ti) { ll res = 1;while (ti){if(ti & 1)res *= x;x *= x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll binmul(ll x, ll ti) { ll res = 0;while (ti){if(ti & 1)res += x;x += x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll nok(ll a, ll b) { return (a*b)/__gcd(abs(a),abs(b)) * (a*b > 0 ? 1 : -1); }
bool odd(ll n) { return (n % 2 == 1); }
bool even(ll n) { return (n % 2 == 0); }
ll n, m, q, a[N], d[N], len, up[N][30];
vector <ll> g[N], order;
set <ll> st[N], ss[N];
void dfs(ll v, ll pr) {
up[v][0] = pr;
for (auto to : g[v]) {
if (to != pr) {
d[to] = d[v] + 1;
dfs(to, v);
}
}
}
ll lift(ll v, ll time) {
for (int i = 0; i <= 25; ++ i) {
if (time & (1 << i)) v = up[v][i];
}
return v;
}
ll get_lca(ll u, ll v) {
if (d[u] > d[v]) swap(u, v);
v = lift(v, d[v] - d[u]);
if (u == v) return u;
for (int i = 25; i >= 0; -- i) {
if (up[v][i] != up[u][i]) {
v = up[v][i], u = up[u][i];
}
}
return up[v][0];
}
const void solve(/*Armashka*/) {
cin >> n >> m >> q;
for (int i = 1; i < n; ++ i) {
ll u, v;
cin >> u >> v;
g[u].pb(v);
g[v].pb(u);
}
dfs(1, -1);
d[0] = inf;
for (int i = 1; i <= m; ++ i) cin >> a[i];
for (int i = 1; i < m; ++ i) {
ll lca = get_lca(a[i], a[i + 1]);
st[lca].insert(i);
ss[a[i]].insert(i);
}
ss[a[m]].insert(m);
while (q --) {
ll type;
cin >> type;
if (type == 1) {
ll pos, val;
cin >> pos >> val;
if (pos > 1) {
st[get_lca(a[pos], a[pos - 1])].erase(pos - 1);
}
if (pos < m) {
st[get_lca(a[pos], a[pos + 1])].erase(pos);
}
ss[a[pos]].erase(pos);
a[pos] = val;
ss[a[pos]].insert(pos);
if (pos > 1) {
st[get_lca(a[pos], a[pos - 1])].insert(pos - 1);
}
if (pos < m) {
st[get_lca(a[pos], a[pos + 1])].insert(pos);
}
} else {
ll L, R, v;
cin >> L >> R >> v;
auto pos = st[v].lower_bound(L);
if (pos != st[v].end() && *pos < R) cout << *pos << " " << *pos + 1 << "\n";
else {
auto pos = ss[v].lower_bound(L);
if (pos != ss[v].end() && *pos <= R) cout << *pos << " " << *pos << "\n";
else cout << "-1 -1\n";
}
}
}
}
signed main() {
fast;
//freopen("divide.in", "r", stdin);
//freopen("divide.out", "w", stdout);
int tt = 1;
//cin >> tt;
while (tt --) {
solve();
}
}
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
35532 KB |
n=5 |
| 2 |
Incorrect |
16 ms |
35532 KB |
Wrong range. |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
35532 KB |
n=5 |
| 2 |
Incorrect |
16 ms |
35532 KB |
Wrong range. |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
35532 KB |
n=5 |
| 2 |
Incorrect |
16 ms |
35532 KB |
Wrong range. |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
17 ms |
35532 KB |
n=5 |
| 2 |
Incorrect |
16 ms |
35532 KB |
Wrong range. |
| 3 |
Halted |
0 ms |
0 KB |
- |
