#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define _size(x) (int)x.size()
#define BIT(i, x) ((x >> i) & 1)
#define MASK(n) ((1 << n) - 1)
#define REP(i, n) for (int i = 0, _n = (n); i < _n; i++)
#define FOR(i, a, b) for (int i = a, _b = (b); i <= _b; i++)
#define FORD(i, a, b) for (int i = a, _b = (b); i >= _b; i--)
#define FORB1(i, mask) for (int i = mask; i > 0; i ^= i & - i)
#define FORB0(i, n, mask) for (int i = ((1 << n) - 1) ^ mask; i > 0; i ^= i & - i)
#define FORALL(i, a) for (auto i: a)
#define fastio ios_base::sync_with_stdio(0); cin.tie(0);
struct storeNode {
int x, t, a, b;
};
struct queryNode {
int l, y, id;
};
int n, k, q;
vector<storeNode> store;
vector<queryNode> qu;
namespace subtask12 {
const int inf = 1e9;
void main() {
vector<pair<int, int>> g;
FOR(i, 1, n) g.push_back({store[i].a, i}), g.push_back({store[i].b, - i});
REP(i, q) g.push_back({qu[i].y, 0});
sort(g.begin(), g.end(), [&] (const pair<int, int> a, pair<int, int> b) { return a.fi != b.fi ? a.fi < b.fi : a.se > b.se; });
sort(qu.begin(), qu.end(), [&] (const queryNode a, queryNode b) { return a.y < b.y; });
vector<int> ans(q);
vector<multiset<int>> mts(k + 1);
int i = 0, z = 0;
while (i < _size(g)) {
int j = i;
while (j < _size(g) && g[j].fi == g[i].fi && g[j].se > 0) {
int id = g[j].se;
mts[store[id].t].insert(store[id].x);
j++;
}
while (j < _size(g) && g[j].fi == g[i].fi && g[j].se == 0) j++;
while (z < q && qu[z].y == g[i].fi) {
int res = - 1;
FOR(id, 1, k) {
if (mts[id].empty()) {
res = - 1;
break;
}
auto it = mts[id].lower_bound(qu[z].l);
int _res = inf;
if (it != mts[id].end()) _res = min(_res, *it - qu[z].l);
if (it != mts[id].begin()) {
--it;
_res = max(_res, qu[z].l - *it);
}
res = max(res, _res);
}
ans[qu[z].id] = res;
z++;
}
while (j < _size(g) && g[j].fi == g[i].fi) {
int id = - g[j].se;
mts[store[id].t].erase(mts[store[id].t].find(store[id].x));
j++;
}
i = j;
}
REP(i, q) cout << ans[i] << '\n';
}
}
int main() {
fastio;
freopen("APIO18_new_home.inp", "r", stdin);
freopen("APIO18_new_home.out", "w", stdout);
cin >> n >> k >> q;
store.resize(n + 1);
FOR(i, 1, n) {
int x, t, a, b;
cin >> x >> t >> a >> b;
store[i] = {x, t, a, b};
}
qu.resize(q);
REP(i, q) {
cin >> qu[i].l >> qu[i].y;
qu[i].id = i;
}
if (max(n, q) <= 60000 && k <= 400) subtask12::main();
return 0;
}
Compilation message
new_home.cpp: In function 'int main()':
new_home.cpp:85:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
85 | freopen("APIO18_new_home.inp", "r", stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
new_home.cpp:86:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
86 | freopen("APIO18_new_home.out", "w", stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
348 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
2 ms |
344 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
