#include<bits/stdc++.h>
#pragma optimize ("g",on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
#pragma comment(linker, "/stack:200000000")
//01001101 01100001 01101011 01101000 01100001 01100111 01100001 01111001
using namespace std;
#define all(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()
#define ld double
#define ull unsigned long long
#define ff first
#define ss second
#define fix fixed << setprecision
#define pii pair<int, int>
#define E exit (0)
const int inf = 1e9, N = 1e6 + 1, mod = 998244353;
vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};
int tin[N], tout[N], timer;
int up[N][18];
vector<int> adj[N];
void dfs(int u, int p) {
tin[u] = timer++;
up[u][0] = p;
for (int i = 1; i < 18; i++) up[u][i] = up[up[u][i - 1]][i - 1];
for (auto e: adj[u]) {
if (e != p) dfs(e, u);
}
tout[u] = timer;
}
bool is(int a, int b) {
return tin[a] <= tin[b] && tout[a] >= tout[b];
}
int lca(int u, int v) {
if (is(u, v)) return u;
if (is(v, u)) return v;
for (int i = 17; i >= 0; i--) {
int x = up[u][i];
if (is(x, v)) continue;
u = x;
}
return up[u][0];
}
main() {
//freopen("cowrect.in", "r", stdin);
//freopen("cowrect.out", "w", stdout);
ios_base::sync_with_stdio(NULL);
cin.tie(NULL);
int n, m, q;
cin >> n >> m >> q;
for (int i = 1; i < n; i++) {
int u, v;
cin >> u >> v;
adj[u].pb(v);
adj[v].pb(u);
}
dfs(1, 1);
int a[m + 1];
vector<set<pii>> s(n + 1);
for (int i = 1; i <= m; i++) {
cin >> a[i];
s[a[i]].insert({i, i});
if (i > 1) {
int lc = lca(a[i], a[i - 1]);
s[lc].insert({i - 1, i});
}
}
while (q--) {
int t;
cin >> t;
if (t == 1) {
int pos, v;
cin >> pos >> v;
s[a[pos]].erase({pos, pos});
s[v].insert({pos, pos});
if (pos > 1) {
int lc = lca(a[pos], a[pos - 1]);
s[lc].erase({pos - 1, pos});
lc = lca(v, a[pos - 1]);
s[lc].insert({pos - 1, pos});
}
if (pos < m) {
int lc = lca(a[pos], a[pos + 1]);
s[lc].erase({pos, pos + 1});
lc = lca(v, a[pos + 1]);
s[lc].insert({pos, pos + 1});
}
a[pos] = v;
}else {
int l, r, v;
cin >> l >> r >> v;
auto it = s[v].lower_bound({l, l});
if (it == s[v].end()) cout << -1 << ' ' << -1 << nl;
else cout << (*it).ff << ' ' << (*it).ss << nl;
}
}
}
Compilation message
treearray.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
3 | #pragma optimize ("g",on)
|
treearray.cpp:9: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
9 | #pragma comment(linker, "/stack:200000000")
|
treearray.cpp:65:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
65 | main() {
| ^~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
23756 KB |
n=5 |
| 2 |
Incorrect |
11 ms |
23820 KB |
Wrong output format. |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
23756 KB |
n=5 |
| 2 |
Incorrect |
11 ms |
23820 KB |
Wrong output format. |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
23756 KB |
n=5 |
| 2 |
Incorrect |
11 ms |
23820 KB |
Wrong output format. |
| 3 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
13 ms |
23756 KB |
n=5 |
| 2 |
Incorrect |
11 ms |
23820 KB |
Wrong output format. |
| 3 |
Halted |
0 ms |
0 KB |
- |
