Submission #225303

# Submission time Handle Problem Language Result Execution time Memory
225303 2020-04-20T08:34:13 Z vioalbert Lasers (NOI19_lasers) C++14
100 / 100
135 ms 10140 KB
#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;
}
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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
# Verdict Execution time Memory 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