Submission #302671

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
302671	2020-09-19T03:19:56 Z	junseo	Carnival Tickets (IOI20_tickets)	C++17	100 / 100	1123 ms	72312 KB

tickets

#include "tickets.h"
#include <bits/stdc++.h>
#define fi first
#define se second
#define eb emplace_back
#define all(v) (v).begin(), (v).end()
#define rmin(r, x) r = min(r, x)
#define rmax(r, x) r = max(r, x)
#define ends ' '
#define endl '\n'
#define fastio ios_base::sync_with_stdio(0), cin.tie(0)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
 
const int maxn = 1510;
const int maxm = 1510;
const int maxk = maxm;
 
int n, m, k, l[maxn], r[maxn];
ll c[maxn][maxk];
vector<vector<int>> ans;
 
struct Node {
	int i, j;
	Node(int i, int j) : i(i), j(j) {}
};
 
bool operator < (Node l, Node r) {
	if(l.j == k)	return true;
	if(r.j == k)	return false;
	return c[l.i][l.j + 1] - c[l.i][l.j] < c[r.i][r.j + 1] - c[r.i][r.j];
}
 
long long find_maximum(int _k, vector<vector<int>> x) {
	n = x.size();
	m = x[0].size();
	k = _k;
	ans.resize(n);
 
	ll ret = 0;
	priority_queue<Node> pq;
	for(int i = 0; i < n; ++i) {
		ans[i].resize(m, -1);
		l[i] = 0, r[i] = m - 1;
		for(int j = 0; j < k; ++j)		c[i][k] += -x[i][j];
		for(int j = k - 1; j >= 0; --j)	c[i][j] = c[i][j + 1] + x[i][j] + x[i][m - (k - j)];
		pq.push({i, 0});
		ret += c[i][0];
	}
	for(int i = 0; i < n * k / 2; ++i) {
		Node t = pq.top();	pq.pop();
		ret += (c[t.i][t.j + 1] - c[t.i][t.j]);
		pq.push({t.i, t.j + 1});
	}
 
	vector<pii> v;
	while(!pq.empty()) {
		Node t = pq.top();	pq.pop();
		v.eb(t.j, t.i);
	}
	for(int T = 0; T < k; ++T) {
		sort(all(v));
		for(int i = 0; i < n; ++i) {
			int j = v[i].se;
			if(i < n / 2) {
				ans[j][r[j]--] = T;
			}
			else {
				ans[j][l[j]++] = T;
				--v[i].fi;
			}
		}
	}
 
	allocate_tickets(ans);
	return ret;
}

Subtask #1

11.0 / 11.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	640 KB	Output is correct
5	Correct	2 ms	1664 KB	Output is correct
6	Correct	7 ms	6784 KB	Output is correct

Subtask #2

16.0 / 16.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	3 ms	768 KB	Output is correct
5	Correct	32 ms	3576 KB	Output is correct
6	Correct	729 ms	57488 KB	Output is correct

Subtask #3

14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	768 KB	Output is correct
5	Correct	28 ms	3960 KB	Output is correct
6	Correct	664 ms	67192 KB	Output is correct
7	Correct	714 ms	70520 KB	Output is correct
8	Correct	5 ms	1024 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	1 ms	384 KB	Output is correct
11	Correct	0 ms	384 KB	Output is correct
12	Correct	8 ms	1536 KB	Output is correct
13	Correct	26 ms	4480 KB	Output is correct
14	Correct	25 ms	3192 KB	Output is correct
15	Correct	764 ms	71132 KB	Output is correct

Subtask #4

14.0 / 14.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	3 ms	896 KB	Output is correct
5	Correct	41 ms	4344 KB	Output is correct
6	Correct	6 ms	768 KB	Output is correct
7	Correct	14 ms	7040 KB	Output is correct
8	Correct	1099 ms	72220 KB	Output is correct
9	Correct	1045 ms	68472 KB	Output is correct
10	Correct	1033 ms	67196 KB	Output is correct
11	Correct	1123 ms	72056 KB	Output is correct

Subtask #5

12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	3 ms	768 KB	Output is correct
3	Correct	3 ms	768 KB	Output is correct
4	Correct	3 ms	768 KB	Output is correct
5	Correct	3 ms	768 KB	Output is correct
6	Correct	3 ms	896 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	640 KB	Output is correct
9	Correct	4 ms	768 KB	Output is correct
10	Correct	3 ms	768 KB	Output is correct
11	Correct	3 ms	896 KB	Output is correct
12	Correct	3 ms	896 KB	Output is correct

Subtask #6

23.0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	384 KB	Output is correct
2	Correct	3 ms	768 KB	Output is correct
3	Correct	3 ms	768 KB	Output is correct
4	Correct	3 ms	768 KB	Output is correct
5	Correct	3 ms	768 KB	Output is correct
6	Correct	3 ms	896 KB	Output is correct
7	Correct	1 ms	384 KB	Output is correct
8	Correct	2 ms	640 KB	Output is correct
9	Correct	4 ms	768 KB	Output is correct
10	Correct	3 ms	768 KB	Output is correct
11	Correct	3 ms	896 KB	Output is correct
12	Correct	3 ms	896 KB	Output is correct
13	Correct	31 ms	3584 KB	Output is correct
14	Correct	31 ms	3584 KB	Output is correct
15	Correct	36 ms	3968 KB	Output is correct
16	Correct	44 ms	4344 KB	Output is correct
17	Correct	1 ms	384 KB	Output is correct
18	Correct	4 ms	1664 KB	Output is correct
19	Correct	2 ms	1664 KB	Output is correct
20	Correct	33 ms	4096 KB	Output is correct
21	Correct	38 ms	4096 KB	Output is correct
22	Correct	34 ms	4216 KB	Output is correct
23	Correct	39 ms	4216 KB	Output is correct

Subtask #7

10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	1 ms	384 KB	Output is correct
3	Correct	1 ms	384 KB	Output is correct
4	Correct	1 ms	640 KB	Output is correct
5	Correct	2 ms	1664 KB	Output is correct
6	Correct	7 ms	6784 KB	Output is correct
7	Correct	0 ms	384 KB	Output is correct
8	Correct	1 ms	384 KB	Output is correct
9	Correct	0 ms	384 KB	Output is correct
10	Correct	3 ms	768 KB	Output is correct
11	Correct	32 ms	3576 KB	Output is correct
12	Correct	729 ms	57488 KB	Output is correct
13	Correct	1 ms	384 KB	Output is correct
14	Correct	0 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	3 ms	768 KB	Output is correct
17	Correct	28 ms	3960 KB	Output is correct
18	Correct	664 ms	67192 KB	Output is correct
19	Correct	714 ms	70520 KB	Output is correct
20	Correct	5 ms	1024 KB	Output is correct
21	Correct	0 ms	384 KB	Output is correct
22	Correct	1 ms	384 KB	Output is correct
23	Correct	0 ms	384 KB	Output is correct
24	Correct	8 ms	1536 KB	Output is correct
25	Correct	26 ms	4480 KB	Output is correct
26	Correct	25 ms	3192 KB	Output is correct
27	Correct	764 ms	71132 KB	Output is correct
28	Correct	1 ms	384 KB	Output is correct
29	Correct	0 ms	384 KB	Output is correct
30	Correct	1 ms	384 KB	Output is correct
31	Correct	3 ms	896 KB	Output is correct
32	Correct	41 ms	4344 KB	Output is correct
33	Correct	6 ms	768 KB	Output is correct
34	Correct	14 ms	7040 KB	Output is correct
35	Correct	1099 ms	72220 KB	Output is correct
36	Correct	1045 ms	68472 KB	Output is correct
37	Correct	1033 ms	67196 KB	Output is correct
38	Correct	1123 ms	72056 KB	Output is correct
39	Correct	1 ms	384 KB	Output is correct
40	Correct	3 ms	768 KB	Output is correct
41	Correct	3 ms	768 KB	Output is correct
42	Correct	3 ms	768 KB	Output is correct
43	Correct	3 ms	768 KB	Output is correct
44	Correct	3 ms	896 KB	Output is correct
45	Correct	1 ms	384 KB	Output is correct
46	Correct	2 ms	640 KB	Output is correct
47	Correct	4 ms	768 KB	Output is correct
48	Correct	3 ms	768 KB	Output is correct
49	Correct	3 ms	896 KB	Output is correct
50	Correct	3 ms	896 KB	Output is correct
51	Correct	31 ms	3584 KB	Output is correct
52	Correct	31 ms	3584 KB	Output is correct
53	Correct	36 ms	3968 KB	Output is correct
54	Correct	44 ms	4344 KB	Output is correct
55	Correct	1 ms	384 KB	Output is correct
56	Correct	4 ms	1664 KB	Output is correct
57	Correct	2 ms	1664 KB	Output is correct
58	Correct	33 ms	4096 KB	Output is correct
59	Correct	38 ms	4096 KB	Output is correct
60	Correct	34 ms	4216 KB	Output is correct
61	Correct	39 ms	4216 KB	Output is correct
62	Correct	85 ms	8056 KB	Output is correct
63	Correct	86 ms	8184 KB	Output is correct
64	Correct	110 ms	10236 KB	Output is correct
65	Correct	407 ms	31480 KB	Output is correct
66	Correct	459 ms	35960 KB	Output is correct
67	Correct	14 ms	7076 KB	Output is correct
68	Correct	6 ms	768 KB	Output is correct
69	Correct	734 ms	57592 KB	Output is correct
70	Correct	908 ms	67320 KB	Output is correct
71	Correct	1097 ms	72312 KB	Output is correct
72	Correct	881 ms	70100 KB	Output is correct
73	Correct	1061 ms	69496 KB	Output is correct
74	Correct	756 ms	66308 KB	Output is correct
75	Correct	912 ms	65912 KB	Output is correct