Submission #404727

# Submission time Handle Problem Language Result Execution time Memory
404727 2021-05-14T21:51:55 Z usuyus Examination (JOI19_examination) C++14
100 / 100
949 ms 311632 KB
#include <bits/stdc++.h>
#define N 200005
#define M 1000000007
using namespace std;
using ll = long long;

struct ImplicitSegTree {
	struct Node {
		ll val;
		Node *lft, *rgt;;

		Node() : val(0), lft(nullptr), rgt(nullptr) {}

		void push() {
			if (!lft) lft = new Node();
			if (!rgt) rgt = new Node();
		}

		void update(ll l, ll r, ll idx) {
			++val;
			if (l == r) return;
			push();

			ll m = (l+r) / 2;
			if (idx <= m) lft->update(l, m, idx);
			else rgt->update(m+1, r, idx);
		}

		ll query(ll l, ll r, ll lq, ll rq) {
			if (r < lq || rq < l) return 0;
			if (lq <= l && r <= rq) return val;
			push();

			ll m = (l+r) / 2;
			return (
				lft->query(l, m, lq, rq) +
				rgt->query(m+1, r, lq, rq)
			);
		}
	};

	ll n;
	vector<Node> nodes;

	ImplicitSegTree(ll n) : n(n), nodes() {
		nodes.emplace_back();
	}

	void update(ll idx) {
		nodes[0].update(0, n, idx);
	}

	ll query(ll l, ll r) {
		return nodes[0].query(0, n, l, r);
	}
};

struct Query {
	ll a, b, c, idx;

	bool operator<(Query rhs) const {
		if (c == rhs.c) return idx < rhs.idx;
		else return c > rhs.c;
	}
};

int main() {
	ios_base::sync_with_stdio(false); cin.tie(nullptr);

	ll n, q; cin>>n>>q;
	vector<Query> qs;

	for (int i=0; i<n; i++) {
		int x, y; cin>>x>>y;
		qs.push_back({x, y, x+y, -1});
	}

	for (int i=0; i<q; i++) {
		int a, b, c; cin>>a>>b>>c;
		c = max(c, a+b);
		qs.push_back({a, b, c, i});
	}

	sort(qs.begin(), qs.end());
	
	ImplicitSegTree sega(M), segb(M);
	vector<ll> ans(q);
	ll cnt = 0;

	for (auto [a, b, c, idx] : qs) {
		if (idx == -1) { // point
			sega.update(a);
			segb.update(b);
			++cnt;
		} else { // query
			ll aq = sega.query(0, a-1);
			ll bq = segb.query(0, b-1);
			ans[idx] = cnt - aq - bq;
		}
	}

	for (ll x : ans) cout<<x<<endl;
}

Compilation message

examination.cpp: In function 'int main()':
examination.cpp:90:12: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   90 |  for (auto [a, b, c, idx] : qs) {
      |            ^
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 29 ms 13376 KB Output is correct
8 Correct 28 ms 13368 KB Output is correct
9 Correct 28 ms 13428 KB Output is correct
10 Correct 18 ms 6980 KB Output is correct
11 Correct 18 ms 6992 KB Output is correct
12 Correct 9 ms 708 KB Output is correct
13 Correct 28 ms 13404 KB Output is correct
14 Correct 32 ms 13328 KB Output is correct
15 Correct 31 ms 13316 KB Output is correct
16 Correct 17 ms 6992 KB Output is correct
17 Correct 17 ms 6916 KB Output is correct
18 Correct 8 ms 716 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 386 ms 22572 KB Output is correct
2 Correct 384 ms 22564 KB Output is correct
3 Correct 384 ms 22632 KB Output is correct
4 Correct 309 ms 15736 KB Output is correct
5 Correct 295 ms 15760 KB Output is correct
6 Correct 266 ms 9400 KB Output is correct
7 Correct 361 ms 22212 KB Output is correct
8 Correct 390 ms 22260 KB Output is correct
9 Correct 345 ms 21884 KB Output is correct
10 Correct 292 ms 15504 KB Output is correct
11 Correct 278 ms 15512 KB Output is correct
12 Correct 252 ms 9348 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 386 ms 22572 KB Output is correct
2 Correct 384 ms 22564 KB Output is correct
3 Correct 384 ms 22632 KB Output is correct
4 Correct 309 ms 15736 KB Output is correct
5 Correct 295 ms 15760 KB Output is correct
6 Correct 266 ms 9400 KB Output is correct
7 Correct 361 ms 22212 KB Output is correct
8 Correct 390 ms 22260 KB Output is correct
9 Correct 345 ms 21884 KB Output is correct
10 Correct 292 ms 15504 KB Output is correct
11 Correct 278 ms 15512 KB Output is correct
12 Correct 252 ms 9348 KB Output is correct
13 Correct 397 ms 23156 KB Output is correct
14 Correct 384 ms 22908 KB Output is correct
15 Correct 382 ms 22596 KB Output is correct
16 Correct 314 ms 16132 KB Output is correct
17 Correct 303 ms 16244 KB Output is correct
18 Correct 270 ms 9400 KB Output is correct
19 Correct 403 ms 23008 KB Output is correct
20 Correct 407 ms 22932 KB Output is correct
21 Correct 397 ms 22824 KB Output is correct
22 Correct 279 ms 15580 KB Output is correct
23 Correct 281 ms 15584 KB Output is correct
24 Correct 267 ms 9356 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 29 ms 13376 KB Output is correct
8 Correct 28 ms 13368 KB Output is correct
9 Correct 28 ms 13428 KB Output is correct
10 Correct 18 ms 6980 KB Output is correct
11 Correct 18 ms 6992 KB Output is correct
12 Correct 9 ms 708 KB Output is correct
13 Correct 28 ms 13404 KB Output is correct
14 Correct 32 ms 13328 KB Output is correct
15 Correct 31 ms 13316 KB Output is correct
16 Correct 17 ms 6992 KB Output is correct
17 Correct 17 ms 6916 KB Output is correct
18 Correct 8 ms 716 KB Output is correct
19 Correct 386 ms 22572 KB Output is correct
20 Correct 384 ms 22564 KB Output is correct
21 Correct 384 ms 22632 KB Output is correct
22 Correct 309 ms 15736 KB Output is correct
23 Correct 295 ms 15760 KB Output is correct
24 Correct 266 ms 9400 KB Output is correct
25 Correct 361 ms 22212 KB Output is correct
26 Correct 390 ms 22260 KB Output is correct
27 Correct 345 ms 21884 KB Output is correct
28 Correct 292 ms 15504 KB Output is correct
29 Correct 278 ms 15512 KB Output is correct
30 Correct 252 ms 9348 KB Output is correct
31 Correct 397 ms 23156 KB Output is correct
32 Correct 384 ms 22908 KB Output is correct
33 Correct 382 ms 22596 KB Output is correct
34 Correct 314 ms 16132 KB Output is correct
35 Correct 303 ms 16244 KB Output is correct
36 Correct 270 ms 9400 KB Output is correct
37 Correct 403 ms 23008 KB Output is correct
38 Correct 407 ms 22932 KB Output is correct
39 Correct 397 ms 22824 KB Output is correct
40 Correct 279 ms 15580 KB Output is correct
41 Correct 281 ms 15584 KB Output is correct
42 Correct 267 ms 9356 KB Output is correct
43 Correct 935 ms 311560 KB Output is correct
44 Correct 925 ms 311632 KB Output is correct
45 Correct 949 ms 311564 KB Output is correct
46 Correct 529 ms 160568 KB Output is correct
47 Correct 521 ms 160508 KB Output is correct
48 Correct 267 ms 9400 KB Output is correct
49 Correct 888 ms 300188 KB Output is correct
50 Correct 916 ms 300332 KB Output is correct
51 Correct 873 ms 288804 KB Output is correct
52 Correct 505 ms 160384 KB Output is correct
53 Correct 477 ms 159528 KB Output is correct