// author: erray
#pragma optimize("Bismillahirrahmanirrahim")
#include <bits/stdc++.h>
#ifdef DEBUG
#include "debug.h"
#else
#define debug(...) void(37)
#endif
using namespace std;
constexpr int inf = int(3e8);
constexpr int LEAVES = int(1e6);
multiset<int> mss[LEAVES];
int last_leave;
struct node {
int L = 0, R = 0;
int mx = -inf;
int multiset_id = -1;
void add(int x) {
if (multiset_id == -1) multiset_id = last_leave++;
mss[multiset_id].insert(x);
mx = *mss[multiset_id].rbegin();
}
void rem(int x) {
mss[multiset_id].erase(mss[multiset_id].find(x));
mx = (mss[multiset_id].empty() ? -inf : *mss[multiset_id].rbegin());
}
};
constexpr int NODES = int(2e7);
node nodes[NODES];
int last_node = 0;
void pull(node& x) {
x.mx = max(nodes[x.L].mx, nodes[x.R].mx);
}
void branch(node& x) {
if (x.L == 0) x.L = last_node++;
if (x.R == 0) x.R = last_node++;
}
struct SegTree {
void modify(int v, int l, int r, int p, int x, int t) {
if (l == r) {
if (t) {
nodes[v].add(x);
} else {
nodes[v].rem(x);
}
return;
}
branch(nodes[v]);
int mid = (l + r) >> 1;
if (p <= mid) {
modify(nodes[v].L, l, mid, p, x, t);
} else {
modify(nodes[v].R, mid + 1, r, p, x, t);
}
pull(nodes[v]);
}
int get(int v, int l, int r, int ll, int rr) {
if (l >= ll && rr >= r) {
return nodes[v].mx;
}
int mid = (l + r) >> 1;
int res = -inf;
if (ll <= mid && nodes[v].R != 0) {
res = max(res, get(nodes[v].L, l, mid, ll, rr));
}
if (mid < rr && nodes[v].R != 0) {
res = max(res, get(nodes[v].R, mid + 1, r, ll, rr));
}
return res;
}
int mn, mx;
int root;
SegTree(int _mn, int _mx) : mn(_mn), mx(_mx) {
root = last_node++;
}
void modify(int p, int x, int t) {
modify(root, mn, mx, p, x, t);
}
int get(int ll, int rr) {
return get(root, mn, mx, ll, rr);
}
};
constexpr int POS = int(1e8);
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
int N, K, Q;
cin >> N >> K >> Q;
vector<int> X(N), T(N), A(N), B(N);
for (int i = 0; i < N; ++i) {
cin >> X[i] >> T[i] >> A[i] >> B[i];
--T[i];
}
vector<int> L(Q), Y(Q);
for (int i = 0; i < Q; ++i) {
cin >> L[i] >> Y[i];
}
vector<array<int, 2>> events;
for (int i = 0; i < N; ++i) {
events.push_back({A[i], i});
events.push_back({B[i] + 1, ~i});
}
for (int i = 0; i < Q; ++i) {
events.push_back({Y[i], i + N});
}
debug(events);
sort(events.begin(), events.end());
SegTree pref(1, POS), suf(1, POS);
vector<map<int, int>> acts(K);
auto Updates = [&](int t, int x) -> vector<array<int, 3>> {
debug(t, x);
if (acts[t].empty()) {
return {};
}
vector<array<int, 3>> res;
auto it = acts[t].lower_bound(x);
vector<array<int, 2>> regulars;
if (it != acts[t].end() && it->first == x) {
if (next(it) == acts[t].end()) {
res.push_back({t, POS, POS - x});
} else {
regulars.push_back({it->first, next(it)->first});
}
if (it == acts[t].begin()) {
res.push_back({t, 1, x - 1});
} else {
regulars.push_back({prev(it)->first, it->first});
}
} else {
if (it == acts[t].end()) {
res.push_back({t, POS, POS - prev(it)->first});
} else if (it == acts[t].begin()) {
res.push_back({t, 1, it->first - 1});
} else {
regulars.push_back({prev(it)->first, it->first});
}
}
for (auto[l, r] : regulars) {
int dist = (r - l) / 2, mid = (l + r) / 2;
if ((l + r) % 2 == 1) {
res.push_back({t, mid, dist});
res.push_back({t, mid + 1, dist});
} else {
res.push_back({t, mid, dist});
}
}
return res;
};
auto Rem = [&](vector<array<int, 3>> a) {
for (auto[t, x, v] : a) {
pref.modify(x, v + x, 0);
suf.modify(x, v - x, 0);
}
};
auto Add = [&](vector<array<int, 3>> a) {
for (auto[t, x, v] : a) {
pref.modify(x, v + x, 1);
suf.modify(x, v - x, 1);
}
};
vector<int> ans(Q);
int exists = 0;
for (auto[foo, t] : events) {
debug(foo, t);
if (t < 0) {
t = ~t;
debug(T[t]);
if (--acts[T[t]][X[t]] == 0) {
Rem(Updates(T[t], X[t]));
acts[T[t]].erase(X[t]);
Add(Updates(T[t], X[t]));
}
exists -= (acts[T[t]].empty());
} else if (t < N) {
exists += (acts[T[t]].empty());
if (!acts[T[t]].count(X[t])) {
Rem(Updates(T[t], X[t]));
acts[T[t]][X[t]] = 0;
Add(Updates(T[t], X[t]));
}
acts[T[t]][X[t]]++;
} else {
t -= N;
ans[t] = (exists == K ? max(pref.get(1, L[t]) - L[t], suf.get(L[t], POS) + L[t]) : -1);
}
}
for (int i = 0; i < Q; ++i) {
cout << ans[i] << '\n';
}
}
Compilation message
Compilation timeout while compiling new_home
