답안 #930344

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
930344	2024-02-19T12:14:39 Z	NK_	Osumnjičeni (COCI21_osumnjiceni)	C++17	110 / 110	345 ms	31932 KB

Main

// Success consists of going from failure to failure without loss of enthusiasm
#include <bits/stdc++.h>

using namespace std;

#define nl '\n'
#define f first
#define s second
#define mp make_pair

template<class T> using V = vector<T>;
using pi = pair<int, int>;
using vi = V<int>;
using vpi = V<pi>;

const int LG = 18;
int main() {
	cin.tie(0)->sync_with_stdio(0);
	
	int N; cin >> N;

	/*vi L(N), R(N); for(int i = 0; i < N; i++) cin >> L[i] >> R[i];

	int M = -1;
	{
		map<int, int> mp; int cur = 0;
		for(auto& x : L) mp[x]++; 
		for(auto& x : R) mp[x]++;
		for(auto& x : mp) x.second = cur++;
		for(auto& x : L) x = mp[x];
		for(auto& x : R) x = mp[x];
		M = cur;
	}*/
	vpi A(N); for(int i = 0; i < N; i++) cin >> A[i].f >> A[i].s;
	
	set<pi> S;

	auto add = [&](pi x) {

		auto it = S.lower_bound(x);

		if (it != end(S)) {
			pi y = *it;
			if (x.s >= y.f) return false;
		}

		if (it != begin(S)) {
			pi y = *prev(it);
			if (y.s >= x.f) return false;
		}	

		S.insert(x);
		return true;
	};

	V<vi> nxt(N + 1, vi(LG, N)); int bnd = 0;
	for(int i = 0; i < N; i++) {
		// cout << i << " ==> " << L[i] << " " << R[i] << endl;
		while(bnd < N && add(A[bnd])) bnd++;

		nxt[i][0] = bnd;
		// cout << i << " => " << bnd << endl;
		S.erase(A[i]);
	}

	for(int x = N - 1; x >= 0; x--) {
		for(int i = 1; i < LG; i++) nxt[x][i] = nxt[nxt[x][i-1]][i-1];
	}

	int Q; cin >> Q;
	for(int q = 0; q < Q; q++) {
		int l, r; cin >> l >> r; --l, --r;

		int ans = 0;
		for(int i = LG - 1; i >= 0; i--) {
			if (nxt[l][i] <= r) { ans += (1 << i); l = nxt[l][i]; }
		}

		cout << ans + 1 << nl;
	}



	exit(0-0);
}

Subtask #1

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	58 ms	21340 KB	Output is correct
2	Correct	58 ms	21072 KB	Output is correct
3	Correct	57 ms	21072 KB	Output is correct
4	Correct	58 ms	21328 KB	Output is correct
5	Correct	62 ms	22104 KB	Output is correct
6	Correct	56 ms	20056 KB	Output is correct
7	Correct	59 ms	20568 KB	Output is correct
8	Correct	58 ms	20828 KB	Output is correct
9	Correct	68 ms	21096 KB	Output is correct
10	Correct	65 ms	20560 KB	Output is correct
11	Correct	157 ms	30856 KB	Output is correct
12	Correct	151 ms	29008 KB	Output is correct
13	Correct	153 ms	29008 KB	Output is correct
14	Correct	145 ms	26964 KB	Output is correct
15	Correct	138 ms	25256 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	59 ms	21528 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	860 KB	Output is correct
2	Correct	3 ms	860 KB	Output is correct
3	Correct	3 ms	860 KB	Output is correct
4	Correct	3 ms	860 KB	Output is correct
5	Correct	3 ms	860 KB	Output is correct
6	Correct	3 ms	860 KB	Output is correct
7	Correct	3 ms	860 KB	Output is correct
8	Correct	3 ms	856 KB	Output is correct
9	Correct	3 ms	856 KB	Output is correct
10	Correct	4 ms	856 KB	Output is correct
11	Correct	4 ms	1112 KB	Output is correct
12	Correct	4 ms	1116 KB	Output is correct
13	Correct	4 ms	1116 KB	Output is correct
14	Correct	4 ms	860 KB	Output is correct
15	Correct	4 ms	860 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	3 ms	860 KB	Output is correct

Subtask #3

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	860 KB	Output is correct
2	Correct	3 ms	860 KB	Output is correct
3	Correct	3 ms	860 KB	Output is correct
4	Correct	3 ms	860 KB	Output is correct
5	Correct	3 ms	860 KB	Output is correct
6	Correct	3 ms	860 KB	Output is correct
7	Correct	3 ms	860 KB	Output is correct
8	Correct	3 ms	856 KB	Output is correct
9	Correct	3 ms	856 KB	Output is correct
10	Correct	4 ms	856 KB	Output is correct
11	Correct	4 ms	1112 KB	Output is correct
12	Correct	4 ms	1116 KB	Output is correct
13	Correct	4 ms	1116 KB	Output is correct
14	Correct	4 ms	860 KB	Output is correct
15	Correct	4 ms	860 KB	Output is correct
16	Correct	0 ms	348 KB	Output is correct
17	Correct	3 ms	860 KB	Output is correct
18	Correct	61 ms	1608 KB	Output is correct
19	Correct	56 ms	1620 KB	Output is correct
20	Correct	61 ms	1872 KB	Output is correct
21	Correct	59 ms	1616 KB	Output is correct
22	Correct	59 ms	1620 KB	Output is correct
23	Correct	60 ms	1704 KB	Output is correct
24	Correct	65 ms	1620 KB	Output is correct
25	Correct	62 ms	1616 KB	Output is correct
26	Correct	63 ms	1616 KB	Output is correct
27	Correct	67 ms	1616 KB	Output is correct
28	Correct	37 ms	1368 KB	Output is correct
29	Correct	37 ms	1392 KB	Output is correct
30	Correct	40 ms	1448 KB	Output is correct
31	Correct	38 ms	1372 KB	Output is correct
32	Correct	37 ms	1372 KB	Output is correct
33	Correct	0 ms	344 KB	Output is correct
34	Correct	41 ms	1880 KB	Output is correct

Subtask #4

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	61 ms	22260 KB	Output is correct
2	Correct	60 ms	21888 KB	Output is correct
3	Correct	61 ms	20300 KB	Output is correct
4	Correct	60 ms	20056 KB	Output is correct
5	Correct	57 ms	20828 KB	Output is correct
6	Correct	55 ms	20324 KB	Output is correct
7	Correct	56 ms	20172 KB	Output is correct
8	Correct	58 ms	20456 KB	Output is correct
9	Correct	68 ms	20472 KB	Output is correct
10	Correct	71 ms	21844 KB	Output is correct
11	Correct	149 ms	28912 KB	Output is correct
12	Correct	179 ms	31932 KB	Output is correct
13	Correct	156 ms	28832 KB	Output is correct
14	Correct	149 ms	25176 KB	Output is correct
15	Correct	155 ms	27220 KB	Output is correct
16	Correct	1 ms	344 KB	Output is correct
17	Correct	55 ms	20996 KB	Output is correct

Subtask #5

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	58 ms	21340 KB	Output is correct
2	Correct	58 ms	21072 KB	Output is correct
3	Correct	57 ms	21072 KB	Output is correct
4	Correct	58 ms	21328 KB	Output is correct
5	Correct	62 ms	22104 KB	Output is correct
6	Correct	56 ms	20056 KB	Output is correct
7	Correct	59 ms	20568 KB	Output is correct
8	Correct	58 ms	20828 KB	Output is correct
9	Correct	68 ms	21096 KB	Output is correct
10	Correct	65 ms	20560 KB	Output is correct
11	Correct	157 ms	30856 KB	Output is correct
12	Correct	151 ms	29008 KB	Output is correct
13	Correct	153 ms	29008 KB	Output is correct
14	Correct	145 ms	26964 KB	Output is correct
15	Correct	138 ms	25256 KB	Output is correct
16	Correct	0 ms	344 KB	Output is correct
17	Correct	59 ms	21528 KB	Output is correct
18	Correct	5 ms	860 KB	Output is correct
19	Correct	3 ms	860 KB	Output is correct
20	Correct	3 ms	860 KB	Output is correct
21	Correct	3 ms	860 KB	Output is correct
22	Correct	3 ms	860 KB	Output is correct
23	Correct	3 ms	860 KB	Output is correct
24	Correct	3 ms	860 KB	Output is correct
25	Correct	3 ms	856 KB	Output is correct
26	Correct	3 ms	856 KB	Output is correct
27	Correct	4 ms	856 KB	Output is correct
28	Correct	4 ms	1112 KB	Output is correct
29	Correct	4 ms	1116 KB	Output is correct
30	Correct	4 ms	1116 KB	Output is correct
31	Correct	4 ms	860 KB	Output is correct
32	Correct	4 ms	860 KB	Output is correct
33	Correct	0 ms	348 KB	Output is correct
34	Correct	3 ms	860 KB	Output is correct
35	Correct	61 ms	1608 KB	Output is correct
36	Correct	56 ms	1620 KB	Output is correct
37	Correct	61 ms	1872 KB	Output is correct
38	Correct	59 ms	1616 KB	Output is correct
39	Correct	59 ms	1620 KB	Output is correct
40	Correct	60 ms	1704 KB	Output is correct
41	Correct	65 ms	1620 KB	Output is correct
42	Correct	62 ms	1616 KB	Output is correct
43	Correct	63 ms	1616 KB	Output is correct
44	Correct	67 ms	1616 KB	Output is correct
45	Correct	37 ms	1368 KB	Output is correct
46	Correct	37 ms	1392 KB	Output is correct
47	Correct	40 ms	1448 KB	Output is correct
48	Correct	38 ms	1372 KB	Output is correct
49	Correct	37 ms	1372 KB	Output is correct
50	Correct	0 ms	344 KB	Output is correct
51	Correct	41 ms	1880 KB	Output is correct
52	Correct	61 ms	22260 KB	Output is correct
53	Correct	60 ms	21888 KB	Output is correct
54	Correct	61 ms	20300 KB	Output is correct
55	Correct	60 ms	20056 KB	Output is correct
56	Correct	57 ms	20828 KB	Output is correct
57	Correct	55 ms	20324 KB	Output is correct
58	Correct	56 ms	20172 KB	Output is correct
59	Correct	58 ms	20456 KB	Output is correct
60	Correct	68 ms	20472 KB	Output is correct
61	Correct	71 ms	21844 KB	Output is correct
62	Correct	149 ms	28912 KB	Output is correct
63	Correct	179 ms	31932 KB	Output is correct
64	Correct	156 ms	28832 KB	Output is correct
65	Correct	149 ms	25176 KB	Output is correct
66	Correct	155 ms	27220 KB	Output is correct
67	Correct	1 ms	344 KB	Output is correct
68	Correct	55 ms	20996 KB	Output is correct
69	Correct	224 ms	21844 KB	Output is correct
70	Correct	272 ms	22976 KB	Output is correct
71	Correct	345 ms	21264 KB	Output is correct
72	Correct	227 ms	22352 KB	Output is correct
73	Correct	279 ms	22028 KB	Output is correct
74	Correct	259 ms	23172 KB	Output is correct
75	Correct	220 ms	21600 KB	Output is correct
76	Correct	244 ms	23380 KB	Output is correct
77	Correct	270 ms	21332 KB	Output is correct
78	Correct	236 ms	21932 KB	Output is correct
79	Correct	217 ms	31896 KB	Output is correct
80	Correct	206 ms	29524 KB	Output is correct
81	Correct	200 ms	29268 KB	Output is correct
82	Correct	222 ms	26036 KB	Output is correct
83	Correct	198 ms	25168 KB	Output is correct
84	Correct	0 ms	344 KB	Output is correct
85	Correct	119 ms	21844 KB	Output is correct