#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ii = pair<int, int>;
using vi = vector<int>;
#define all(v) begin(v), end(v)
#define sz(v) (int)(v).size()
#define fi first
#define se second
using tri = array<int, 3>;
inline void chkmax(int& x, int y) {
x = y > x ? y : x;
}
const int N = 2e6 + 5;
struct Node {
Node *l = 0, *r = 0;
int lo, hi;
int lz = INT_MIN;
Node(int _lo, int _hi) : lo(_lo), hi(_hi) {
if(lo+1 < hi) {
int mid = lo + (hi - lo) / 2;
l = new Node(lo, mid), r = new Node(mid, hi);
}
}
void __chkmax(int L, int R, int x) {
if(R <= lo or hi <= L) return;
if(L <= lo and hi <= R) upd(x);
else {
push();
l -> __chkmax(L, R, x);
r -> __chkmax(L, R, x);
}
}
void upd(int x) {
chkmax(lz, x);
}
void push() {
if(lo+1 < hi and lz != INT_MIN) {
l -> upd(lz);
r -> upd(lz);
}
lz = INT_MIN;
}
void update(int p, int x) {
if(lo+1 == hi) lz = x;
else {
int mid = lo + (hi - lo) / 2;
push();
if(p < mid) l -> update(p, x);
else r -> update(p, x);
}
}
int query(int p) {
if(lo+1 == hi) return lz;
else {
int mid = lo + (hi - lo) / 2;
push();
if(p < mid) return l -> query(p);
else return r -> query(p);
}
}
};
int n, m, q;
vector<ii> v;
vector<tri> vs;
vi ys;
vector<ii> queries;
int where[N]; // wheres the i-th points after sorting by y
int main(int argc, char const *argv[])
{
#ifdef LOCAL
freopen("in", "r", stdin);
#endif
scanf("%d %d %d", &n, &m, &q);
for(int i = 0; i < m; ++i) {
int x, y;
scanf("%d %d", &x, &y);
v.emplace_back(x, y);
vs.push_back({y, x, i});
}
for(int i = 0; i < q; ++i) {
int t, x, y;
scanf("%d %d", &t, &x);
if(t == 4) scanf("%d", &y), v.emplace_back(x, y), vs.push_back({y, x, m+i});
queries.emplace_back(t, x);
}
sort(all(vs));
for(int i = 0; i < sz(vs); ++i) {
where[vs[i][2]] = i;
ys.emplace_back(vs[i][0]);
}
Node* tr = new Node(0, sz(ys));
int ptr = 0;
for(; ptr < m; ++ptr) {
tr -> update(where[ptr], v[ptr].fi);
}
for(auto [t, l] : queries) {
if(t == 1) {
printf("%d %d\n", tr -> query(where[l-1]), v[l-1].se);
} else if(t == 2) {
int i = int(upper_bound(all(ys), l) - ys.begin());
tr -> __chkmax(0, i, n-l);
} else { // 4
tr -> update(where[ptr], v[ptr].fi);
++ptr;
}
}
return 0;
}
/*
* use std::array instead of std::vector, if u can
* overflow?
* array bounds
*/
Compilation message
sweeping.cpp: In function 'int main(int, const char**)':
sweeping.cpp:80:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
80 | scanf("%d %d %d", &n, &m, &q);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
sweeping.cpp:83:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
83 | scanf("%d %d", &x, &y);
| ~~~~~^~~~~~~~~~~~~~~~~
sweeping.cpp:89:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
89 | scanf("%d %d", &t, &x);
| ~~~~~^~~~~~~~~~~~~~~~~
sweeping.cpp:90:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
90 | if(t == 4) scanf("%d", &y), v.emplace_back(x, y), vs.push_back({y, x, m+i});
| ~~~~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
748 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1816 ms |
106920 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
832 ms |
151396 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
832 ms |
151396 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
4 ms |
748 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
