oj.uz

Submission #845963

# Submission time Handle Problem Language Result Execution time Memory
845963 2023-09-07T01:24:49 Z NK_ Examination (JOI19_examination) C++17
100 / 100
 411 ms 29492 KB 
// Success consists of going from failure to failure without loss of enthusiasm
#include <bits/stdc++.h>
 
using namespace std;
 
#define nl '\n'
#define pb push_back
#define pf push_front
 
#define mp make_pair
#define f first
#define s second
#define sz(x) int(x.size())
 
template<class T> using V = vector<T>;
using pi = pair<int, int>;
using vi = V<int>;
using vpi = V<pi>;
 
using ll = long long;
using pl = pair<ll, ll>;
using vpl = V<pl>;
using vl = V<ll>;
 
using db = long double;
 
template<class T> using pq = priority_queue<T, V<T>, less<T>>;
 
const int MOD = 1e9 + 7;
const ll INFL = ll(1e17);
const int LG = 19;

#include <ext/pb_ds/assoc_container.hpp>
using namespace __gnu_pbds;

template<class T> using iset = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;


int main() {
	cin.tie(0)->sync_with_stdio(0);

	int N, Q; cin >> N >> Q;

	vl A(N), B(N); for(int i = 0; i < N; i++) {
		cin >> A[i] >> B[i];
	}

	vi I(N); iota(begin(I), end(I), 0);

	sort(begin(I), end(I), [&](int a, int b) {
		return A[a] > A[b];
	}); 

	V<V<array<ll, 3>>> QQ(N); vi ans(Q);

	auto find = [&](ll x) {
		int lo = -1, hi = N - 1;
		while(lo < hi) {
			int mid = (lo + hi + 1) / 2;
			if (x <= A[I[mid]]) lo = mid;
			else hi = mid - 1;
		}
		return lo;
	};

	for(int i = 0; i < Q; i++) {
		ll a, b, c; cin >> a >> b >> c; 
		// cout << a << " " << b << " " << c << endl;

		// c-query
		int cq = find(a);
		if (cq != -1) {
			QQ[cq].pb({c, 1, i});
			// cout << i << " " << cq << endl;
		}

		// everything after is a b-query
		int bq = min(find(c - b), cq);
		if (bq != -1) {
			QQ[bq].pb({c, -1, i});
			QQ[bq].pb({b, 0, i});
			// cout << i << " " << bq << endl;
		}
	}

	// cout << endl;

	iset<pl> ct, bt; 

	for(int i = 0; i < N; i++) { 
		ct.insert(mp(A[I[i]] + B[I[i]], i));
		bt.insert(mp(B[I[i]], i));

		// cout << i << endl;
		for(auto q : QQ[i]) {
			if (q[1] == 0) {
				ans[q[2]] += int(sz(bt) - bt.order_of_key(mp(q[0], -MOD)));
				// cout << q[2] << " " << q[1] << " " << int(sz(bt) - bt.order_of_key(mp(q[0], -MOD))) << endl;
			} else {
				ans[q[2]] += q[1] * int(sz(ct) - ct.order_of_key(mp(q[0], -MOD)));
				// cout << "> " << sz(ct) << " " << ct.order_of_key(mp(q[0], -MOD)) << endl;
				// cout << q[2] << " " << q[1] << " " << q[1] * int(sz(ct) - ct.order_of_key(mp(q[0], -MOD))) << endl;
			}
		}
		// cout << endl;
	}

	for(int i = 0; i < Q; i++) cout << ans[i] << endl;

	exit(0-0);
}

Subtask #1
2.0 / 2.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 7 ms 1116 KB Output is correct
8 Correct 7 ms 1076 KB Output is correct
9 Correct 7 ms 1116 KB Output is correct
10 Correct 7 ms 1116 KB Output is correct
11 Correct 6 ms 1156 KB Output is correct
12 Correct 6 ms 1112 KB Output is correct
13 Correct 7 ms 1116 KB Output is correct
14 Correct 7 ms 1316 KB Output is correct
15 Correct 7 ms 1116 KB Output is correct
16 Correct 6 ms 1104 KB Output is correct
17 Correct 7 ms 1048 KB Output is correct
18 Correct 6 ms 1012 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 318 ms 29096 KB Output is correct
2 Correct 316 ms 28940 KB Output is correct
3 Correct 343 ms 28968 KB Output is correct
4 Correct 268 ms 29040 KB Output is correct
5 Correct 245 ms 25232 KB Output is correct
6 Correct 232 ms 25356 KB Output is correct
7 Correct 334 ms 28420 KB Output is correct
8 Correct 315 ms 29040 KB Output is correct
9 Correct 312 ms 28500 KB Output is correct
10 Correct 218 ms 22780 KB Output is correct
11 Correct 282 ms 29492 KB Output is correct
12 Correct 259 ms 19648 KB Output is correct

Subtask #3
21.0 / 21.0

# Verdict Execution time Memory Grader output
1 Correct 318 ms 29096 KB Output is correct
2 Correct 316 ms 28940 KB Output is correct
3 Correct 343 ms 28968 KB Output is correct
4 Correct 268 ms 29040 KB Output is correct
5 Correct 245 ms 25232 KB Output is correct
6 Correct 232 ms 25356 KB Output is correct
7 Correct 334 ms 28420 KB Output is correct
8 Correct 315 ms 29040 KB Output is correct
9 Correct 312 ms 28500 KB Output is correct
10 Correct 218 ms 22780 KB Output is correct
11 Correct 282 ms 29492 KB Output is correct
12 Correct 259 ms 19648 KB Output is correct
13 Correct 352 ms 26628 KB Output is correct
14 Correct 348 ms 28460 KB Output is correct
15 Correct 310 ms 29004 KB Output is correct
16 Correct 308 ms 28168 KB Output is correct
17 Correct 249 ms 22800 KB Output is correct
18 Correct 242 ms 25252 KB Output is correct
19 Correct 347 ms 26724 KB Output is correct
20 Correct 378 ms 27904 KB Output is correct
21 Correct 360 ms 25464 KB Output is correct
22 Correct 220 ms 22152 KB Output is correct
23 Correct 277 ms 28912 KB Output is correct
24 Correct 285 ms 20460 KB Output is correct

Subtask #4
57.0 / 57.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 344 KB Output is correct
6 Correct 0 ms 344 KB Output is correct
7 Correct 7 ms 1116 KB Output is correct
8 Correct 7 ms 1076 KB Output is correct
9 Correct 7 ms 1116 KB Output is correct
10 Correct 7 ms 1116 KB Output is correct
11 Correct 6 ms 1156 KB Output is correct
12 Correct 6 ms 1112 KB Output is correct
13 Correct 7 ms 1116 KB Output is correct
14 Correct 7 ms 1316 KB Output is correct
15 Correct 7 ms 1116 KB Output is correct
16 Correct 6 ms 1104 KB Output is correct
17 Correct 7 ms 1048 KB Output is correct
18 Correct 6 ms 1012 KB Output is correct
19 Correct 318 ms 29096 KB Output is correct
20 Correct 316 ms 28940 KB Output is correct
21 Correct 343 ms 28968 KB Output is correct
22 Correct 268 ms 29040 KB Output is correct
23 Correct 245 ms 25232 KB Output is correct
24 Correct 232 ms 25356 KB Output is correct
25 Correct 334 ms 28420 KB Output is correct
26 Correct 315 ms 29040 KB Output is correct
27 Correct 312 ms 28500 KB Output is correct
28 Correct 218 ms 22780 KB Output is correct
29 Correct 282 ms 29492 KB Output is correct
30 Correct 259 ms 19648 KB Output is correct
31 Correct 352 ms 26628 KB Output is correct
32 Correct 348 ms 28460 KB Output is correct
33 Correct 310 ms 29004 KB Output is correct
34 Correct 308 ms 28168 KB Output is correct
35 Correct 249 ms 22800 KB Output is correct
36 Correct 242 ms 25252 KB Output is correct
37 Correct 347 ms 26724 KB Output is correct
38 Correct 378 ms 27904 KB Output is correct
39 Correct 360 ms 25464 KB Output is correct
40 Correct 220 ms 22152 KB Output is correct
41 Correct 277 ms 28912 KB Output is correct
42 Correct 285 ms 20460 KB Output is correct
43 Correct 339 ms 26476 KB Output is correct
44 Correct 369 ms 26692 KB Output is correct
45 Correct 368 ms 28520 KB Output is correct
46 Correct 411 ms 28312 KB Output is correct
47 Correct 250 ms 22940 KB Output is correct
48 Correct 216 ms 22072 KB Output is correct
49 Correct 384 ms 28112 KB Output is correct
50 Correct 346 ms 25132 KB Output is correct
51 Correct 369 ms 27800 KB Output is correct
52 Correct 230 ms 20424 KB Output is correct
53 Correct 338 ms 28840 KB Output is correct