/*************************************
* author: marvinthang *
* created: 03.12.2023 16:52:48 *
*************************************/
#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
#define left ___left
#define right ___right
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
#define MASK(i) (1LL << (i))
#define BIT(x, i) ((x) >> (i) & 1)
#define __builtin_popcount __builtin_popcountll
#define ALL(v) (v).begin(), (v).end()
#define REP(i, n) for (int i = 0, _n = (n); i < _n; ++i)
#define REPD(i, n) for (int i = (n); i-- > 0; )
#define FOR(i, a, b) for (int i = (a), _b = (b); i < _b; ++i)
#define FORD(i, b, a) for (int i = (b), _a = (a); --i >= _a; )
#define FORE(i, a, b) for (int i = (a), _b = (b); i <= _b; ++i)
#define FORDE(i, b, a) for (int i = (b), _a = (a); i >= _a; --i)
#define scan_op(...) istream & operator >> (istream &in, __VA_ARGS__ &u)
#define print_op(...) ostream & operator << (ostream &out, const __VA_ARGS__ &u)
#ifdef LOCAL
#include "debug.h"
#else
#define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
#define DB(...) 23
#define db(...) 23
#define debug(...) 23
#endif
template <class U, class V> scan_op(pair <U, V>) { return in >> u.first >> u.second; }
template <class T> scan_op(vector <T>) { for (size_t i = 0; i < u.size(); ++i) in >> u[i]; return in; }
template <class U, class V> print_op(pair <U, V>) { return out << '(' << u.first << ", " << u.second << ')'; }
template <size_t i, class T> ostream & print_tuple_utils(ostream &out, const T &tup) { if constexpr(i == tuple_size<T>::value) return out << ")"; else return print_tuple_utils<i + 1, T>(out << (i ? ", " : "(") << get<i>(tup), tup); }
template <class ...U> print_op(tuple<U...>) { return print_tuple_utils<0, tuple<U...>>(out, u); }
template <class Con, class = decltype(begin(declval<Con>()))> typename enable_if <!is_same<Con, string>::value, ostream&>::type operator << (ostream &out, const Con &con) { out << '{'; for (__typeof(con.begin()) it = con.begin(); it != con.end(); ++it) out << (it == con.begin() ? "" : ", ") << *it; return out << '}'; }
// end of template
void process(void) {
int n, m, q; cin >> n >> m >> q;
vector <array <int, 3>> events;
REP(i, m) {
int x, y; cin >> x >> y;
events.push_back(array{i, x, y});
}
int cnt = 0;
REP(i, q) {
int t; cin >> t;
if (t == 1) {
int a; cin >> a;
events.push_back(array{-t, a - 1, cnt++});
} else if (t < 4) {
int l; cin >> l;
events.push_back(array{-t, l, 0});
} else {
int x, y; cin >> x >> y;
events.emplace_back(array{m++, x, y});
}
}
vector <pair <int, int>> res(cnt);
vector <int> pos(m);
vector <int> lab_x(m), lab_y(m), val_x(m), val_y(m);
vector <vector <int>> comps_x(m), comps_y(m);
function<void(int, int, const vector <array <int, 3>> &)> solve = [&] (int l, int r, const vector <array <int, 3>> &events) {
if (events.empty() || l > r) return;
// cout << l << ' ' << r << '\n';
int mid = l + r >> 1;
int px = mid, py = n - mid;
vector <array <int, 3>> left, right;
priority_queue <pair <int, int>, vector <pair <int, int>>, greater <pair <int, int>>> pq_x, pq_y;
for (auto e: events) {
if (e[0] == -1) {
int a = e[1];
if (pos[a]) (pos[a] == -1 ? left : right).push_back(e);
else res[e[2]] = pair{val_x[lab_x[a]], val_y[lab_y[a]]};
} else if (e[0] == -2) {
int l = e[1];
if (l < py) {
right.push_back(e);
while (!pq_y.empty() && pq_y.top().fi <= l) {
int u = pq_y.top().se; pq_y.pop();
for (int v: comps_y[u]) if (!pos[v]) {
pos[v] = 1;
right.push_back(array{v, n - l, val_y[v]});
}
}
} else {
if (l > py) left.push_back(e);
int cur = -1;
while (!pq_x.empty() && pq_x.top().fi <= n - l) {
int u = pq_x.top().se; pq_x.pop();
if (cur == -1) cur = u;
else {
if (comps_x[cur].size() < comps_x[u].size()) swap(cur, u);
for (int v: comps_x[u]) if (!pos[v]) {
lab_x[v] = cur;
comps_x[cur].push_back(v);
}
comps_x[u].clear();
}
}
if (cur != -1) {
val_x[cur] = n - l;
pq_x.emplace(n - l, cur);
}
}
} else if (e[0] == -3) {
int l = e[1];
// cout << l << ' ' << py << '\n';
if (l < px) {
if (l > px) left.push_back(e);
while (!pq_x.empty() && pq_x.top().fi <= l) {
int u = pq_x.top().se; pq_x.pop();
for (int v: comps_x[u]) if (!pos[v]) {
pos[v] = -1;
right.push_back(array{v, val_x[v], n - l});
}
}
} else {
right.push_back(e);
int cur = -1;
while (!pq_y.empty() && pq_y.top().fi <= n - l) {
int u = pq_y.top().se; pq_y.pop();
if (cur == -1) cur = u;
else {
if (comps_y[cur].size() < comps_y[u].size()) swap(cur, u);
for (int v: comps_y[u]) if (!pos[v]) {
lab_y[v] = cur;
comps_y[cur].push_back(v);
}
comps_y[u].clear();
}
}
if (cur != -1) {
val_y[cur] = n - l;
pq_y.emplace(n - l, cur);
}
}
} else {
int u = e[0], x = e[1], y = e[2];
if (x > px) {
pos[u] = 1;
right.push_back(e);
} else if (y > py) {
pos[u] = -1;
left.push_back(e);
} else {
pos[u] = 0;
comps_x[u] = vector {u};
lab_x[u] = u;
val_x[u] = x;
pq_x.emplace(x, u);
comps_y[u] = vector {u};
lab_y[u] = u;
val_y[u] = y;
pq_y.emplace(y, u);
}
}
}
// if (l >= 4) cout << events << '\n';
// cout << "-----------\n";
solve(l, mid - 1, left);
solve(mid + 1, r, right);
};
solve(0, n, events);
REP(i, cnt) cout << res[i].fi << ' ' << res[i].se << '\n';
}
int main(void) {
ios_base::sync_with_stdio(false); cin.tie(nullptr); // cout.tie(nullptr);
file("JOI20_sweeping");
// int t; cin >> t; while (t--)
process();
// cerr << "Time elapsed: " << TIME << " s.\n";
return (0^0);
}
Compilation message
sweeping.cpp: In lambda function:
sweeping.cpp:73:15: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
73 | int mid = l + r >> 1;
| ~~^~~
sweeping.cpp: In function 'int main()':
sweeping.cpp:30:61: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
30 | #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sweeping.cpp:179:2: note: in expansion of macro 'file'
179 | file("JOI20_sweeping");
| ^~~~
sweeping.cpp:30:94: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
30 | #define file(name) if (fopen(name".inp", "r")) { freopen(name".inp", "r", stdin); freopen(name".out", "w", stdout); }
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
sweeping.cpp:179:2: note: in expansion of macro 'file'
179 | file("JOI20_sweeping");
| ^~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
4 ms |
1664 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
2165 ms |
182132 KB |
Output is correct |
| 2 |
Correct |
2056 ms |
181312 KB |
Output is correct |
| 3 |
Correct |
2049 ms |
178860 KB |
Output is correct |
| 4 |
Correct |
1803 ms |
196800 KB |
Output is correct |
| 5 |
Correct |
3864 ms |
188980 KB |
Output is correct |
| 6 |
Correct |
2851 ms |
191720 KB |
Output is correct |
| 7 |
Correct |
1869 ms |
180792 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1302 ms |
164788 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1302 ms |
164788 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
4 ms |
1664 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
