답안 #225303

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
225303	2020-04-20T08:34:13 Z	vioalbert	Lasers (NOI19_lasers)	C++14	100 / 100	135 ms	10140 KB

lasers

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int N = 500005;
int k, n;
vector<pair<int, int>> seg;
int a[N];

int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	cin >> k >> n;
	for(int cn = 0; cn < n; cn++) {
		int x; cin >> x;
		int sumL = 0, sumR = 0;
		for(int i = 0; i < x; i++) {
			cin >> a[i];
			sumR += a[i];
		}

		for(int i = 0; i < x; i++) {
			sumR -= a[i];
			int l = sumL+1, r = k-sumR;
			int delta = (r-l+1) - a[i];
			if(l + delta <= r - delta)
				seg.push_back({l+delta, r-delta});
			sumL += a[i];
		}
	}

	sort(seg.begin(), seg.end());

	stack<pair<int, int>> st;
	for(auto& it : seg) {
		if(st.empty() || st.top().second < it.first)
			st.push(it);
		else if(it.second > st.top().second) {
			pair<int, int> u = {st.top().first, it.second};
			st.pop();
			st.push(u);
		}
	}

	int ans = 0;
	while(!st.empty()) {
		ans += st.top().second - st.top().first + 1;
		st.pop();
	}

	cout << ans << '\n';

	return 0;
}

Subtask #1
10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	512 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct

Subtask #2
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	512 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	124 ms	10140 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	134 ms	7912 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	4 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct

Subtask #3
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	3892 KB	Output is correct
2	Correct	12 ms	1152 KB	Output is correct
3	Correct	12 ms	1024 KB	Output is correct
4	Correct	45 ms	4072 KB	Output is correct
5	Correct	20 ms	2332 KB	Output is correct
6	Correct	33 ms	3316 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	40 ms	3312 KB	Output is correct
9	Correct	25 ms	3320 KB	Output is correct
10	Correct	56 ms	4328 KB	Output is correct

Subtask #4
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	5 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	5 ms	384 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	5 ms	384 KB	Output is correct
10	Correct	5 ms	384 KB	Output is correct

Subtask #5
22.0 / 22.0

#	결과	실행 시간	메모리	Grader output
1	Correct	43 ms	3892 KB	Output is correct
2	Correct	12 ms	1152 KB	Output is correct
3	Correct	12 ms	1024 KB	Output is correct
4	Correct	45 ms	4072 KB	Output is correct
5	Correct	20 ms	2332 KB	Output is correct
6	Correct	33 ms	3316 KB	Output is correct
7	Correct	5 ms	384 KB	Output is correct
8	Correct	40 ms	3312 KB	Output is correct
9	Correct	25 ms	3320 KB	Output is correct
10	Correct	56 ms	4328 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	5 ms	384 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	5 ms	384 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	5 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	120 ms	6756 KB	Output is correct
22	Correct	21 ms	1660 KB	Output is correct
23	Correct	15 ms	1408 KB	Output is correct
24	Correct	51 ms	3952 KB	Output is correct
25	Correct	126 ms	6760 KB	Output is correct
26	Correct	44 ms	3824 KB	Output is correct
27	Correct	21 ms	1536 KB	Output is correct
28	Correct	127 ms	6760 KB	Output is correct
29	Correct	123 ms	6760 KB	Output is correct
30	Correct	37 ms	2552 KB	Output is correct

Subtask #6
13.0 / 13.0

#	결과	실행 시간	메모리	Grader output
1	Correct	5 ms	512 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	4 ms	384 KB	Output is correct
4	Correct	5 ms	384 KB	Output is correct
5	Correct	5 ms	384 KB	Output is correct
6	Correct	4 ms	384 KB	Output is correct
7	Correct	4 ms	384 KB	Output is correct
8	Correct	5 ms	384 KB	Output is correct
9	Correct	4 ms	384 KB	Output is correct
10	Correct	4 ms	384 KB	Output is correct
11	Correct	5 ms	384 KB	Output is correct
12	Correct	124 ms	10140 KB	Output is correct
13	Correct	5 ms	384 KB	Output is correct
14	Correct	5 ms	384 KB	Output is correct
15	Correct	5 ms	384 KB	Output is correct
16	Correct	5 ms	384 KB	Output is correct
17	Correct	134 ms	7912 KB	Output is correct
18	Correct	5 ms	384 KB	Output is correct
19	Correct	4 ms	384 KB	Output is correct
20	Correct	5 ms	384 KB	Output is correct
21	Correct	43 ms	3892 KB	Output is correct
22	Correct	12 ms	1152 KB	Output is correct
23	Correct	12 ms	1024 KB	Output is correct
24	Correct	45 ms	4072 KB	Output is correct
25	Correct	20 ms	2332 KB	Output is correct
26	Correct	33 ms	3316 KB	Output is correct
27	Correct	5 ms	384 KB	Output is correct
28	Correct	40 ms	3312 KB	Output is correct
29	Correct	25 ms	3320 KB	Output is correct
30	Correct	56 ms	4328 KB	Output is correct
31	Correct	5 ms	384 KB	Output is correct
32	Correct	5 ms	384 KB	Output is correct
33	Correct	5 ms	384 KB	Output is correct
34	Correct	5 ms	384 KB	Output is correct
35	Correct	5 ms	384 KB	Output is correct
36	Correct	5 ms	384 KB	Output is correct
37	Correct	5 ms	384 KB	Output is correct
38	Correct	5 ms	384 KB	Output is correct
39	Correct	5 ms	384 KB	Output is correct
40	Correct	5 ms	384 KB	Output is correct
41	Correct	120 ms	6756 KB	Output is correct
42	Correct	21 ms	1660 KB	Output is correct
43	Correct	15 ms	1408 KB	Output is correct
44	Correct	51 ms	3952 KB	Output is correct
45	Correct	126 ms	6760 KB	Output is correct
46	Correct	44 ms	3824 KB	Output is correct
47	Correct	21 ms	1536 KB	Output is correct
48	Correct	127 ms	6760 KB	Output is correct
49	Correct	123 ms	6760 KB	Output is correct
50	Correct	37 ms	2552 KB	Output is correct
51	Correct	22 ms	1788 KB	Output is correct
52	Correct	135 ms	8044 KB	Output is correct
53	Correct	123 ms	7916 KB	Output is correct
54	Correct	34 ms	2936 KB	Output is correct
55	Correct	81 ms	5228 KB	Output is correct
56	Correct	46 ms	4336 KB	Output is correct
57	Correct	51 ms	4592 KB	Output is correct
58	Correct	129 ms	8040 KB	Output is correct
59	Correct	40 ms	2808 KB	Output is correct
60	Correct	54 ms	3824 KB	Output is correct

답안 #225303

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 14.0 / 14.0

Subtask #3 20.0 / 20.0

Subtask #4 21.0 / 21.0

Subtask #5 22.0 / 22.0

Subtask #6 13.0 / 13.0

Subtask #1
10.0 / 10.0

Subtask #2
14.0 / 14.0

Subtask #3
20.0 / 20.0

Subtask #4
21.0 / 21.0

Subtask #5
22.0 / 22.0

Subtask #6
13.0 / 13.0