Submission #97321

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
97321	2019-02-15T05:02:52 Z	shoemakerjo	Port Facility (JOI17_port_facility)	C++14	100 / 100	2555 ms	85608 KB

port_facility

#include <bits/stdc++.h>

using namespace std;
using ll = long long;
#define pii pair<int, int>

const int maxn = 1000010;
int mod = 1000000007;
int N;

ll ans, inv2;
vector<pii> vals;

int par[maxn*2];

int findset(int u) {
	if (par[u] == u) return u;

	return par[u] = findset(par[u]);
}

void unionset(int a, int b) {
	a = findset(a);
	b = findset(b);
	if (a != b) {
		par[a] = b;
	}
}

map<int, int> mp;

bool used[maxn*2];

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cin >> N;
	int a, b;
	for (int i = 0; i < N; i++) {
		cin >> a >> b;
		vals.push_back(pii(a, b));
	}	
	sort(vals.begin(), vals.end());

	for (int i = 0; i < 2*N; i++) {
		par[i] = i;
	}

	for (int i = 0; i < N; i++) {
		a = vals[i].first;
		b = vals[i].second;
		auto fi = mp.lower_bound(a), se = mp.lower_bound(b);

		while (fi != se) {
			unionset(i, (fi -> second) + N);
			unionset(i + N, fi -> second);

			if (findset((--se) -> second) == findset(fi -> second)) {
				break;
			}
			++fi;
			++se;
		}

		mp[b] = i;
	}

	ans = 1;
	for (int i = 0; i < N; i++) {
		if (findset(i) == findset(i+N)) ans = 0;
		used[findset(i)] = true;
		used[findset(i+N)] = true;
	}
	for (int i = 0; i < N; i++) {
		if (used[i]) ans = (ans*2LL)%mod;
	}
	cout << ans << endl;

}

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	3 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	3 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	3 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	3 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	3 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	3 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	3 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	3 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct
25	Correct	3 ms	512 KB	Output is correct
26	Correct	5 ms	640 KB	Output is correct
27	Correct	4 ms	512 KB	Output is correct
28	Correct	5 ms	512 KB	Output is correct
29	Correct	4 ms	512 KB	Output is correct
30	Correct	3 ms	512 KB	Output is correct
31	Correct	3 ms	512 KB	Output is correct
32	Correct	5 ms	512 KB	Output is correct
33	Correct	4 ms	512 KB	Output is correct
34	Correct	5 ms	512 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	4 ms	512 KB	Output is correct
38	Correct	4 ms	512 KB	Output is correct
39	Correct	3 ms	512 KB	Output is correct
40	Correct	4 ms	512 KB	Output is correct
41	Correct	6 ms	512 KB	Output is correct
42	Correct	4 ms	512 KB	Output is correct
43	Correct	4 ms	512 KB	Output is correct
44	Correct	3 ms	512 KB	Output is correct

Subtask #3
56.0 / 56.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	3 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	3 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	3 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	3 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct
25	Correct	3 ms	512 KB	Output is correct
26	Correct	5 ms	640 KB	Output is correct
27	Correct	4 ms	512 KB	Output is correct
28	Correct	5 ms	512 KB	Output is correct
29	Correct	4 ms	512 KB	Output is correct
30	Correct	3 ms	512 KB	Output is correct
31	Correct	3 ms	512 KB	Output is correct
32	Correct	5 ms	512 KB	Output is correct
33	Correct	4 ms	512 KB	Output is correct
34	Correct	5 ms	512 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	4 ms	512 KB	Output is correct
38	Correct	4 ms	512 KB	Output is correct
39	Correct	3 ms	512 KB	Output is correct
40	Correct	4 ms	512 KB	Output is correct
41	Correct	6 ms	512 KB	Output is correct
42	Correct	4 ms	512 KB	Output is correct
43	Correct	4 ms	512 KB	Output is correct
44	Correct	3 ms	512 KB	Output is correct
45	Correct	87 ms	8052 KB	Output is correct
46	Correct	78 ms	8104 KB	Output is correct
47	Correct	97 ms	8040 KB	Output is correct
48	Correct	82 ms	8048 KB	Output is correct
49	Correct	95 ms	8192 KB	Output is correct
50	Correct	90 ms	8048 KB	Output is correct
51	Correct	78 ms	8048 KB	Output is correct
52	Correct	91 ms	8048 KB	Output is correct
53	Correct	100 ms	8048 KB	Output is correct
54	Correct	93 ms	7920 KB	Output is correct
55	Correct	93 ms	7792 KB	Output is correct
56	Correct	82 ms	7920 KB	Output is correct
57	Correct	93 ms	8044 KB	Output is correct
58	Correct	102 ms	8048 KB	Output is correct
59	Correct	84 ms	8048 KB	Output is correct
60	Correct	94 ms	8044 KB	Output is correct
61	Correct	88 ms	8064 KB	Output is correct
62	Correct	76 ms	8048 KB	Output is correct
63	Correct	81 ms	8048 KB	Output is correct
64	Correct	90 ms	8176 KB	Output is correct
65	Correct	109 ms	7904 KB	Output is correct
66	Correct	110 ms	7968 KB	Output is correct
67	Correct	101 ms	8688 KB	Output is correct
68	Correct	109 ms	8684 KB	Output is correct
69	Correct	97 ms	8464 KB	Output is correct
70	Correct	80 ms	8408 KB	Output is correct
71	Correct	103 ms	8728 KB	Output is correct
72	Correct	93 ms	8684 KB	Output is correct
73	Correct	109 ms	8404 KB	Output is correct
74	Correct	120 ms	8460 KB	Output is correct
75	Correct	88 ms	7916 KB	Output is correct
76	Correct	94 ms	8004 KB	Output is correct
77	Correct	92 ms	7920 KB	Output is correct
78	Correct	91 ms	8064 KB	Output is correct
79	Correct	80 ms	8044 KB	Output is correct

Subtask #4
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	3 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	3 ms	384 KB	Output is correct
8	Correct	2 ms	384 KB	Output is correct
9	Correct	2 ms	384 KB	Output is correct
10	Correct	2 ms	384 KB	Output is correct
11	Correct	2 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	384 KB	Output is correct
14	Correct	3 ms	384 KB	Output is correct
15	Correct	1 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	2 ms	384 KB	Output is correct
18	Correct	3 ms	384 KB	Output is correct
19	Correct	2 ms	512 KB	Output is correct
20	Correct	3 ms	384 KB	Output is correct
21	Correct	3 ms	384 KB	Output is correct
22	Correct	3 ms	384 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	3 ms	384 KB	Output is correct
25	Correct	3 ms	512 KB	Output is correct
26	Correct	5 ms	640 KB	Output is correct
27	Correct	4 ms	512 KB	Output is correct
28	Correct	5 ms	512 KB	Output is correct
29	Correct	4 ms	512 KB	Output is correct
30	Correct	3 ms	512 KB	Output is correct
31	Correct	3 ms	512 KB	Output is correct
32	Correct	5 ms	512 KB	Output is correct
33	Correct	4 ms	512 KB	Output is correct
34	Correct	5 ms	512 KB	Output is correct
35	Correct	1 ms	384 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	4 ms	512 KB	Output is correct
38	Correct	4 ms	512 KB	Output is correct
39	Correct	3 ms	512 KB	Output is correct
40	Correct	4 ms	512 KB	Output is correct
41	Correct	6 ms	512 KB	Output is correct
42	Correct	4 ms	512 KB	Output is correct
43	Correct	4 ms	512 KB	Output is correct
44	Correct	3 ms	512 KB	Output is correct
45	Correct	87 ms	8052 KB	Output is correct
46	Correct	78 ms	8104 KB	Output is correct
47	Correct	97 ms	8040 KB	Output is correct
48	Correct	82 ms	8048 KB	Output is correct
49	Correct	95 ms	8192 KB	Output is correct
50	Correct	90 ms	8048 KB	Output is correct
51	Correct	78 ms	8048 KB	Output is correct
52	Correct	91 ms	8048 KB	Output is correct
53	Correct	100 ms	8048 KB	Output is correct
54	Correct	93 ms	7920 KB	Output is correct
55	Correct	93 ms	7792 KB	Output is correct
56	Correct	82 ms	7920 KB	Output is correct
57	Correct	93 ms	8044 KB	Output is correct
58	Correct	102 ms	8048 KB	Output is correct
59	Correct	84 ms	8048 KB	Output is correct
60	Correct	94 ms	8044 KB	Output is correct
61	Correct	88 ms	8064 KB	Output is correct
62	Correct	76 ms	8048 KB	Output is correct
63	Correct	81 ms	8048 KB	Output is correct
64	Correct	90 ms	8176 KB	Output is correct
65	Correct	109 ms	7904 KB	Output is correct
66	Correct	110 ms	7968 KB	Output is correct
67	Correct	101 ms	8688 KB	Output is correct
68	Correct	109 ms	8684 KB	Output is correct
69	Correct	97 ms	8464 KB	Output is correct
70	Correct	80 ms	8408 KB	Output is correct
71	Correct	103 ms	8728 KB	Output is correct
72	Correct	93 ms	8684 KB	Output is correct
73	Correct	109 ms	8404 KB	Output is correct
74	Correct	120 ms	8460 KB	Output is correct
75	Correct	88 ms	7916 KB	Output is correct
76	Correct	94 ms	8004 KB	Output is correct
77	Correct	92 ms	7920 KB	Output is correct
78	Correct	91 ms	8064 KB	Output is correct
79	Correct	80 ms	8044 KB	Output is correct
80	Correct	936 ms	79588 KB	Output is correct
81	Correct	898 ms	79672 KB	Output is correct
82	Correct	872 ms	79572 KB	Output is correct
83	Correct	977 ms	79672 KB	Output is correct
84	Correct	921 ms	79572 KB	Output is correct
85	Correct	945 ms	79572 KB	Output is correct
86	Correct	917 ms	79556 KB	Output is correct
87	Correct	1265 ms	79656 KB	Output is correct
88	Correct	1383 ms	79664 KB	Output is correct
89	Correct	1222 ms	77620 KB	Output is correct
90	Correct	1296 ms	77620 KB	Output is correct
91	Correct	1243 ms	77692 KB	Output is correct
92	Correct	1338 ms	79508 KB	Output is correct
93	Correct	1336 ms	79556 KB	Output is correct
94	Correct	935 ms	79572 KB	Output is correct
95	Correct	956 ms	79648 KB	Output is correct
96	Correct	1266 ms	79796 KB	Output is correct
97	Correct	1108 ms	79568 KB	Output is correct
98	Correct	1170 ms	79444 KB	Output is correct
99	Correct	1134 ms	79572 KB	Output is correct
100	Correct	2282 ms	77600 KB	Output is correct
101	Correct	2555 ms	77804 KB	Output is correct
102	Correct	1402 ms	85588 KB	Output is correct
103	Correct	1531 ms	85532 KB	Output is correct
104	Correct	1475 ms	82884 KB	Output is correct
105	Correct	1340 ms	82956 KB	Output is correct
106	Correct	1737 ms	85608 KB	Output is correct
107	Correct	1583 ms	85556 KB	Output is correct
108	Correct	1385 ms	82868 KB	Output is correct
109	Correct	1648 ms	82804 KB	Output is correct
110	Correct	1345 ms	77832 KB	Output is correct
111	Correct	1597 ms	77540 KB	Output is correct
112	Correct	1416 ms	77552 KB	Output is correct
113	Correct	1116 ms	79572 KB	Output is correct
114	Correct	1572 ms	79452 KB	Output is correct

Submission #97321

Compilation message

Subtask #1 10.0 / 10.0

Subtask #2 12.0 / 12.0

Subtask #3 56.0 / 56.0

Subtask #4 22.0 / 22.0

Subtask #1
10.0 / 10.0

Subtask #2
12.0 / 12.0

Subtask #3
56.0 / 56.0

Subtask #4
22.0 / 22.0