Submission #197487

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
197487	2020-01-21T12:58:46 Z	dennisstar	Port Facility (JOI17_port_facility)	C++17	100 / 100	2502 ms	80268 KB

port_facility

#include <bits/stdc++.h>
#define fi first
#define se second
#define eb emplace_back
#define all(V) (V).begin(), (V).end()
using namespace std;
typedef long long ll;
typedef vector<int> vim;
typedef pair<int, int> pii;

const ll MOD=1e9+7;
int N; ll ans=1; vector<pii> V; set<pii> S;

vim par;
int get(int x) { return par[x]==-1?x:par[x]=get(par[x]); }
void Union(int x, int y) { x=get(x), y=get(y); if (x!=y) par[y]=x; }

int main() {
	scanf("%d", &N); V.resize(N); par.resize(2*N); fill(all(par), -1);
	for (auto &i:V) scanf("%d %d", &i.fi, &i.se);
	sort(all(V));
	for (int i=0; i<N; i++) {
		auto s=S.lower_bound(pii(V[i].fi, 0)), e=S.upper_bound(pii(V[i].se, (1<<30)));
		if (e!=S.begin()) for (; s!=e; ++s) {
			Union(i, s->se+N);
			Union(i+N, s->se);
			if (get(s->se)==get(prev(e)->se)) break;
		}
		S.emplace(V[i].se, i);
	}
	for (int i=0; i<N; i++) if (get(i)==get(i+N)) { puts("0"); return 0; }
	for (int i=0; i<N; i++) if (get(i)==i) ans=ans*2%MOD;
	printf("%lld\n", ans);
	return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:19:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d", &N); V.resize(N); par.resize(2*N); fill(all(par), -1);
  ~~~~~^~~~~~~~~~
port_facility.cpp:20:23: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  for (auto &i:V) scanf("%d %d", &i.fi, &i.se);
                  ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	9 ms	376 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	9 ms	396 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	256 KB	Output is correct
13	Correct	2 ms	356 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	380 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	256 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	256 KB	Output is correct
24	Correct	2 ms	256 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	9 ms	376 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	9 ms	396 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	256 KB	Output is correct
13	Correct	2 ms	356 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	380 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	256 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	256 KB	Output is correct
24	Correct	2 ms	256 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	504 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	4 ms	576 KB	Output is correct
29	Correct	3 ms	504 KB	Output is correct
30	Correct	4 ms	504 KB	Output is correct
31	Correct	4 ms	504 KB	Output is correct
32	Correct	4 ms	504 KB	Output is correct
33	Correct	4 ms	504 KB	Output is correct
34	Correct	4 ms	504 KB	Output is correct
35	Correct	3 ms	504 KB	Output is correct
36	Correct	4 ms	504 KB	Output is correct
37	Correct	3 ms	504 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	4 ms	504 KB	Output is correct
41	Correct	3 ms	504 KB	Output is correct
42	Correct	3 ms	504 KB	Output is correct
43	Correct	2 ms	504 KB	Output is correct
44	Correct	3 ms	504 KB	Output is correct

Subtask #3
56.0 / 56.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	9 ms	376 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	9 ms	396 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	256 KB	Output is correct
13	Correct	2 ms	356 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	380 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	256 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	256 KB	Output is correct
24	Correct	2 ms	256 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	504 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	4 ms	576 KB	Output is correct
29	Correct	3 ms	504 KB	Output is correct
30	Correct	4 ms	504 KB	Output is correct
31	Correct	4 ms	504 KB	Output is correct
32	Correct	4 ms	504 KB	Output is correct
33	Correct	4 ms	504 KB	Output is correct
34	Correct	4 ms	504 KB	Output is correct
35	Correct	3 ms	504 KB	Output is correct
36	Correct	4 ms	504 KB	Output is correct
37	Correct	3 ms	504 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	4 ms	504 KB	Output is correct
41	Correct	3 ms	504 KB	Output is correct
42	Correct	3 ms	504 KB	Output is correct
43	Correct	2 ms	504 KB	Output is correct
44	Correct	3 ms	504 KB	Output is correct
45	Correct	90 ms	7696 KB	Output is correct
46	Correct	95 ms	7696 KB	Output is correct
47	Correct	91 ms	7728 KB	Output is correct
48	Correct	91 ms	7800 KB	Output is correct
49	Correct	95 ms	7708 KB	Output is correct
50	Correct	87 ms	7800 KB	Output is correct
51	Correct	86 ms	7704 KB	Output is correct
52	Correct	100 ms	7948 KB	Output is correct
53	Correct	102 ms	7796 KB	Output is correct
54	Correct	93 ms	7700 KB	Output is correct
55	Correct	93 ms	7672 KB	Output is correct
56	Correct	93 ms	7692 KB	Output is correct
57	Correct	101 ms	7672 KB	Output is correct
58	Correct	95 ms	7676 KB	Output is correct
59	Correct	81 ms	7676 KB	Output is correct
60	Correct	85 ms	7772 KB	Output is correct
61	Correct	88 ms	7672 KB	Output is correct
62	Correct	76 ms	8156 KB	Output is correct
63	Correct	81 ms	7904 KB	Output is correct
64	Correct	83 ms	7808 KB	Output is correct
65	Correct	141 ms	7716 KB	Output is correct
66	Correct	136 ms	7872 KB	Output is correct
67	Correct	103 ms	7772 KB	Output is correct
68	Correct	103 ms	7748 KB	Output is correct
69	Correct	99 ms	7772 KB	Output is correct
70	Correct	100 ms	7696 KB	Output is correct
71	Correct	115 ms	8492 KB	Output is correct
72	Correct	111 ms	8560 KB	Output is correct
73	Correct	114 ms	8872 KB	Output is correct
74	Correct	109 ms	8824 KB	Output is correct
75	Correct	106 ms	9336 KB	Output is correct
76	Correct	107 ms	9312 KB	Output is correct
77	Correct	106 ms	9284 KB	Output is correct
78	Correct	90 ms	7812 KB	Output is correct
79	Correct	91 ms	7852 KB	Output is correct

Subtask #4
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	376 KB	Output is correct
2	Correct	2 ms	376 KB	Output is correct
3	Correct	2 ms	376 KB	Output is correct
4	Correct	9 ms	376 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	256 KB	Output is correct
7	Correct	2 ms	376 KB	Output is correct
8	Correct	9 ms	396 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	2 ms	376 KB	Output is correct
11	Correct	2 ms	376 KB	Output is correct
12	Correct	2 ms	256 KB	Output is correct
13	Correct	2 ms	356 KB	Output is correct
14	Correct	2 ms	256 KB	Output is correct
15	Correct	2 ms	380 KB	Output is correct
16	Correct	2 ms	376 KB	Output is correct
17	Correct	2 ms	376 KB	Output is correct
18	Correct	2 ms	376 KB	Output is correct
19	Correct	2 ms	256 KB	Output is correct
20	Correct	2 ms	256 KB	Output is correct
21	Correct	2 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	256 KB	Output is correct
24	Correct	2 ms	256 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	504 KB	Output is correct
27	Correct	3 ms	376 KB	Output is correct
28	Correct	4 ms	576 KB	Output is correct
29	Correct	3 ms	504 KB	Output is correct
30	Correct	4 ms	504 KB	Output is correct
31	Correct	4 ms	504 KB	Output is correct
32	Correct	4 ms	504 KB	Output is correct
33	Correct	4 ms	504 KB	Output is correct
34	Correct	4 ms	504 KB	Output is correct
35	Correct	3 ms	504 KB	Output is correct
36	Correct	4 ms	504 KB	Output is correct
37	Correct	3 ms	504 KB	Output is correct
38	Correct	3 ms	376 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	4 ms	504 KB	Output is correct
41	Correct	3 ms	504 KB	Output is correct
42	Correct	3 ms	504 KB	Output is correct
43	Correct	2 ms	504 KB	Output is correct
44	Correct	3 ms	504 KB	Output is correct
45	Correct	90 ms	7696 KB	Output is correct
46	Correct	95 ms	7696 KB	Output is correct
47	Correct	91 ms	7728 KB	Output is correct
48	Correct	91 ms	7800 KB	Output is correct
49	Correct	95 ms	7708 KB	Output is correct
50	Correct	87 ms	7800 KB	Output is correct
51	Correct	86 ms	7704 KB	Output is correct
52	Correct	100 ms	7948 KB	Output is correct
53	Correct	102 ms	7796 KB	Output is correct
54	Correct	93 ms	7700 KB	Output is correct
55	Correct	93 ms	7672 KB	Output is correct
56	Correct	93 ms	7692 KB	Output is correct
57	Correct	101 ms	7672 KB	Output is correct
58	Correct	95 ms	7676 KB	Output is correct
59	Correct	81 ms	7676 KB	Output is correct
60	Correct	85 ms	7772 KB	Output is correct
61	Correct	88 ms	7672 KB	Output is correct
62	Correct	76 ms	8156 KB	Output is correct
63	Correct	81 ms	7904 KB	Output is correct
64	Correct	83 ms	7808 KB	Output is correct
65	Correct	141 ms	7716 KB	Output is correct
66	Correct	136 ms	7872 KB	Output is correct
67	Correct	103 ms	7772 KB	Output is correct
68	Correct	103 ms	7748 KB	Output is correct
69	Correct	99 ms	7772 KB	Output is correct
70	Correct	100 ms	7696 KB	Output is correct
71	Correct	115 ms	8492 KB	Output is correct
72	Correct	111 ms	8560 KB	Output is correct
73	Correct	114 ms	8872 KB	Output is correct
74	Correct	109 ms	8824 KB	Output is correct
75	Correct	106 ms	9336 KB	Output is correct
76	Correct	107 ms	9312 KB	Output is correct
77	Correct	106 ms	9284 KB	Output is correct
78	Correct	90 ms	7812 KB	Output is correct
79	Correct	91 ms	7852 KB	Output is correct
80	Correct	973 ms	65848 KB	Output is correct
81	Correct	968 ms	65784 KB	Output is correct
82	Correct	981 ms	65872 KB	Output is correct
83	Correct	986 ms	65884 KB	Output is correct
84	Correct	980 ms	65772 KB	Output is correct
85	Correct	928 ms	65784 KB	Output is correct
86	Correct	936 ms	65788 KB	Output is correct
87	Correct	1269 ms	65816 KB	Output is correct
88	Correct	1279 ms	65768 KB	Output is correct
89	Correct	1174 ms	66268 KB	Output is correct
90	Correct	1181 ms	66272 KB	Output is correct
91	Correct	1186 ms	66168 KB	Output is correct
92	Correct	1276 ms	66200 KB	Output is correct
93	Correct	1246 ms	66436 KB	Output is correct
94	Correct	877 ms	66936 KB	Output is correct
95	Correct	950 ms	66868 KB	Output is correct
96	Correct	948 ms	67152 KB	Output is correct
97	Correct	876 ms	69544 KB	Output is correct
98	Correct	913 ms	67868 KB	Output is correct
99	Correct	925 ms	67996 KB	Output is correct
100	Correct	2417 ms	67060 KB	Output is correct
101	Correct	2502 ms	64964 KB	Output is correct
102	Correct	1333 ms	65008 KB	Output is correct
103	Correct	1338 ms	65136 KB	Output is correct
104	Correct	1330 ms	67560 KB	Output is correct
105	Correct	1326 ms	67108 KB	Output is correct
106	Correct	1385 ms	75056 KB	Output is correct
107	Correct	1399 ms	75236 KB	Output is correct
108	Correct	1434 ms	77788 KB	Output is correct
109	Correct	1407 ms	75180 KB	Output is correct
110	Correct	1333 ms	80268 KB	Output is correct
111	Correct	1365 ms	80188 KB	Output is correct
112	Correct	1347 ms	80248 KB	Output is correct
113	Correct	968 ms	65760 KB	Output is correct
114	Correct	976 ms	67556 KB	Output is correct

Submission #197487

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