Submission #701366

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
701366	2023-02-21T04:25:18 Z	GusterGoose27	Arranging Tickets (JOI17_arranging_tickets)	C++11	85 / 100	1752 ms	27076 KB

arranging_tickets

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int, int> pii;

const int MAXN = 2e5+10;
int n, m;
ll overall[MAXN];
ll arr[MAXN];
ll req_red[MAXN];
ll r_end[MAXN];
vector<pii> ranges[MAXN]; // right endpoint, index

ll max(ll a, ll b) {
	if (a > b) return a;
	return b;
}

ll num_req(int target) {
	for (int i = 0; i < n; i++) req_red[i] = max(0, arr[i]-target);
	fill(r_end, r_end+n, 0);
	priority_queue<pii> pq;
	ll sub = 0;
	ll num = 0;
	for (pii i: ranges[0]) pq.push(i);
	for (int i = 0; i < n; i++) {
		if (sub < req_red[i]) {
			pii r = pq.top();
			pq.pop();
			int amt;
			if (r.second > req_red[i]-sub) {
				r.second -= (req_red[i]-sub);
				amt = (req_red[i]-sub);
				pq.push(r);
			}
			else amt = r.second;
			r_end[r.first] += amt;
			sub += amt;
			i--;
			num += amt;
			continue;
		}
		for (pii v: ranges[i+1]) pq.push(v);
		sub -= r_end[i];
	}
	return num;
}

ll solve() {
	int mn = -1;
	int mx = 0;
	for (int i = 0; i < n; i++) mx = max(mx, arr[i]);
	mx++;
	// int b = -1;
	// for (int i = mn+1; i < mx; i++) {
	// 	int v = 2*i+num_req(i);
	// 	if (b == -1 || v < b) b = v;
	// }
	// return b;
	while (mx > mn+2) {
		int cur = (mn+mx)/2;
		int v1 = num_req(cur);
		int v2 = num_req(cur+1);
		if (v1 >= v2+2) mn = cur;
		else mx = cur+1;
	}
	return 2*(mn+1)+num_req(mn+1);
}

int main() {
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	cin >> n >> m;
	n--;
	for (int i = 0; i < m; i++) {
		int a, b, c; cin >> a >> b >> c;
		a--; b--;
		if (a > b) swap(a, b);
		ranges[a].push_back(pii(b-1, c));
		overall[a] += c;
		overall[b] -= c;
	}
	for (int i = 0; i < n; i++) {
		overall[i+1] += overall[i];
	}
	for (int i = 0; i < n; i++) {
		arr[i] = (overall[i]+1)/2;
	}
	ll ans = solve();
	for (int i = 0; i < n; i++) arr[i] = overall[i]/2;
	ans = min(ans, solve()+1);
	cout << ans << "\n";
}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	5052 KB	Output is correct

Subtask #2
35.0 / 35.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	5052 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	5068 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	3 ms	4948 KB	Output is correct
26	Correct	3 ms	4948 KB	Output is correct
27	Correct	3 ms	4948 KB	Output is correct

Subtask #3
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	5052 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	5068 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	3 ms	4948 KB	Output is correct
26	Correct	3 ms	4948 KB	Output is correct
27	Correct	3 ms	4948 KB	Output is correct
28	Correct	11 ms	5204 KB	Output is correct
29	Correct	10 ms	5204 KB	Output is correct
30	Correct	10 ms	5256 KB	Output is correct
31	Correct	11 ms	5252 KB	Output is correct
32	Correct	11 ms	5204 KB	Output is correct
33	Correct	10 ms	5204 KB	Output is correct
34	Correct	11 ms	5204 KB	Output is correct
35	Correct	12 ms	5204 KB	Output is correct
36	Correct	10 ms	5204 KB	Output is correct
37	Correct	9 ms	5256 KB	Output is correct
38	Correct	5 ms	5204 KB	Output is correct
39	Correct	7 ms	5204 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	5052 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	5068 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	3 ms	4948 KB	Output is correct
26	Correct	3 ms	4948 KB	Output is correct
27	Correct	3 ms	4948 KB	Output is correct
28	Correct	11 ms	5204 KB	Output is correct
29	Correct	10 ms	5204 KB	Output is correct
30	Correct	10 ms	5256 KB	Output is correct
31	Correct	11 ms	5252 KB	Output is correct
32	Correct	11 ms	5204 KB	Output is correct
33	Correct	10 ms	5204 KB	Output is correct
34	Correct	11 ms	5204 KB	Output is correct
35	Correct	12 ms	5204 KB	Output is correct
36	Correct	10 ms	5204 KB	Output is correct
37	Correct	9 ms	5256 KB	Output is correct
38	Correct	5 ms	5204 KB	Output is correct
39	Correct	7 ms	5204 KB	Output is correct
40	Correct	559 ms	15096 KB	Output is correct
41	Correct	584 ms	15148 KB	Output is correct
42	Correct	537 ms	14936 KB	Output is correct
43	Correct	538 ms	14960 KB	Output is correct
44	Correct	529 ms	14992 KB	Output is correct
45	Correct	505 ms	14720 KB	Output is correct
46	Correct	538 ms	14824 KB	Output is correct
47	Correct	546 ms	14924 KB	Output is correct
48	Correct	491 ms	14700 KB	Output is correct
49	Correct	402 ms	11876 KB	Output is correct
50	Correct	294 ms	12896 KB	Output is correct
51	Correct	356 ms	12088 KB	Output is correct

Subtask #5
0 / 15.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	4948 KB	Output is correct
2	Correct	2 ms	4948 KB	Output is correct
3	Correct	2 ms	4948 KB	Output is correct
4	Correct	2 ms	4948 KB	Output is correct
5	Correct	2 ms	4948 KB	Output is correct
6	Correct	2 ms	4948 KB	Output is correct
7	Correct	3 ms	4948 KB	Output is correct
8	Correct	2 ms	4948 KB	Output is correct
9	Correct	2 ms	4948 KB	Output is correct
10	Correct	3 ms	4948 KB	Output is correct
11	Correct	3 ms	4948 KB	Output is correct
12	Correct	2 ms	4948 KB	Output is correct
13	Correct	2 ms	4948 KB	Output is correct
14	Correct	2 ms	4948 KB	Output is correct
15	Correct	3 ms	5052 KB	Output is correct
16	Correct	3 ms	4948 KB	Output is correct
17	Correct	3 ms	4948 KB	Output is correct
18	Correct	3 ms	5068 KB	Output is correct
19	Correct	3 ms	4948 KB	Output is correct
20	Correct	3 ms	4948 KB	Output is correct
21	Correct	3 ms	4948 KB	Output is correct
22	Correct	3 ms	4948 KB	Output is correct
23	Correct	3 ms	4948 KB	Output is correct
24	Correct	3 ms	4948 KB	Output is correct
25	Correct	3 ms	4948 KB	Output is correct
26	Correct	3 ms	4948 KB	Output is correct
27	Correct	3 ms	4948 KB	Output is correct
28	Correct	11 ms	5204 KB	Output is correct
29	Correct	10 ms	5204 KB	Output is correct
30	Correct	10 ms	5256 KB	Output is correct
31	Correct	11 ms	5252 KB	Output is correct
32	Correct	11 ms	5204 KB	Output is correct
33	Correct	10 ms	5204 KB	Output is correct
34	Correct	11 ms	5204 KB	Output is correct
35	Correct	12 ms	5204 KB	Output is correct
36	Correct	10 ms	5204 KB	Output is correct
37	Correct	9 ms	5256 KB	Output is correct
38	Correct	5 ms	5204 KB	Output is correct
39	Correct	7 ms	5204 KB	Output is correct
40	Correct	559 ms	15096 KB	Output is correct
41	Correct	584 ms	15148 KB	Output is correct
42	Correct	537 ms	14936 KB	Output is correct
43	Correct	538 ms	14960 KB	Output is correct
44	Correct	529 ms	14992 KB	Output is correct
45	Correct	505 ms	14720 KB	Output is correct
46	Correct	538 ms	14824 KB	Output is correct
47	Correct	546 ms	14924 KB	Output is correct
48	Correct	491 ms	14700 KB	Output is correct
49	Correct	402 ms	11876 KB	Output is correct
50	Correct	294 ms	12896 KB	Output is correct
51	Correct	356 ms	12088 KB	Output is correct
52	Correct	1752 ms	14768 KB	Output is correct
53	Correct	1552 ms	14344 KB	Output is correct
54	Correct	1600 ms	14680 KB	Output is correct
55	Runtime error	80 ms	27076 KB	Execution killed with signal 11
56	Halted	0 ms	0 KB	-

Submission #701366

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 35.0 / 35.0

Subtask #3 20.0 / 20.0

Subtask #4 20.0 / 20.0

Subtask #5 0 / 15.0

Subtask #1
10.0 / 10.0

Subtask #2
35.0 / 35.0

Subtask #3
20.0 / 20.0

Subtask #4
20.0 / 20.0

Subtask #5
0 / 15.0