Submission #197484

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
197484	2020-01-21T12:50:35 Z	dennisstar	Port Facility (JOI17_port_facility)	C++17	100 / 100	2300 ms	93292 KB

port_facility

#include <bits/stdc++.h>
#pragma GCC optimize("Ofast")
#pragma GCC optimize("unroll-loops")
#define fi first
#define se second
#define ryan bear
#define sq(X) ((X)*(X))
#define eb emplace_back
#define all(V) (V).begin(), (V).end()
#define unq(V) (V).erase(unique(all(V)), (V).end())
using namespace std;
typedef long long ll;
typedef vector<ll> vlm;
typedef vector<int> vim;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

const ll MOD=1e9+7;
int N; ll ans=1; vector<pii> V;
map<int, int> mp;

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=mp.lower_bound(V[i].fi), e=mp.upper_bound(V[i].se);
		if (e!=mp.begin()) for (; s!=e; ++s) {
			Union(i, s->se+N);
			Union(i+N, s->se);
			if (get(s->se)==get(prev(e)->se)) break;
		}
		mp[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:27:7: 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:28:23: 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	256 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	248 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	252 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 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	376 KB	Output is correct
20	Correct	3 ms	256 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	380 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	256 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	248 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	252 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 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	376 KB	Output is correct
20	Correct	3 ms	256 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	380 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	504 KB	Output is correct
27	Correct	4 ms	376 KB	Output is correct
28	Correct	4 ms	504 KB	Output is correct
29	Correct	4 ms	504 KB	Output is correct
30	Correct	4 ms	508 KB	Output is correct
31	Correct	4 ms	508 KB	Output is correct
32	Correct	4 ms	504 KB	Output is correct
33	Correct	4 ms	504 KB	Output is correct
34	Correct	3 ms	504 KB	Output is correct
35	Correct	3 ms	504 KB	Output is correct
36	Correct	2 ms	504 KB	Output is correct
37	Correct	3 ms	504 KB	Output is correct
38	Correct	3 ms	504 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	3 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	3 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	256 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	248 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	252 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 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	376 KB	Output is correct
20	Correct	3 ms	256 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	380 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	504 KB	Output is correct
27	Correct	4 ms	376 KB	Output is correct
28	Correct	4 ms	504 KB	Output is correct
29	Correct	4 ms	504 KB	Output is correct
30	Correct	4 ms	508 KB	Output is correct
31	Correct	4 ms	508 KB	Output is correct
32	Correct	4 ms	504 KB	Output is correct
33	Correct	4 ms	504 KB	Output is correct
34	Correct	3 ms	504 KB	Output is correct
35	Correct	3 ms	504 KB	Output is correct
36	Correct	2 ms	504 KB	Output is correct
37	Correct	3 ms	504 KB	Output is correct
38	Correct	3 ms	504 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	3 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	3 ms	504 KB	Output is correct
44	Correct	3 ms	504 KB	Output is correct
45	Correct	95 ms	7844 KB	Output is correct
46	Correct	97 ms	7976 KB	Output is correct
47	Correct	90 ms	7848 KB	Output is correct
48	Correct	90 ms	7816 KB	Output is correct
49	Correct	90 ms	7948 KB	Output is correct
50	Correct	86 ms	7900 KB	Output is correct
51	Correct	85 ms	7928 KB	Output is correct
52	Correct	98 ms	7892 KB	Output is correct
53	Correct	96 ms	7800 KB	Output is correct
54	Correct	88 ms	7800 KB	Output is correct
55	Correct	92 ms	7824 KB	Output is correct
56	Correct	88 ms	7928 KB	Output is correct
57	Correct	99 ms	7928 KB	Output is correct
58	Correct	93 ms	8004 KB	Output is correct
59	Correct	83 ms	7800 KB	Output is correct
60	Correct	86 ms	7928 KB	Output is correct
61	Correct	96 ms	7900 KB	Output is correct
62	Correct	78 ms	8312 KB	Output is correct
63	Correct	80 ms	8056 KB	Output is correct
64	Correct	85 ms	7928 KB	Output is correct
65	Correct	125 ms	7900 KB	Output is correct
66	Correct	133 ms	7928 KB	Output is correct
67	Correct	98 ms	7800 KB	Output is correct
68	Correct	103 ms	7928 KB	Output is correct
69	Correct	98 ms	7928 KB	Output is correct
70	Correct	99 ms	7900 KB	Output is correct
71	Correct	100 ms	8568 KB	Output is correct
72	Correct	101 ms	8568 KB	Output is correct
73	Correct	101 ms	8952 KB	Output is correct
74	Correct	101 ms	8824 KB	Output is correct
75	Correct	101 ms	9340 KB	Output is correct
76	Correct	104 ms	9464 KB	Output is correct
77	Correct	103 ms	9340 KB	Output is correct
78	Correct	90 ms	7800 KB	Output is correct
79	Correct	89 ms	7900 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	256 KB	Output is correct
4	Correct	2 ms	376 KB	Output is correct
5	Correct	2 ms	248 KB	Output is correct
6	Correct	2 ms	376 KB	Output is correct
7	Correct	3 ms	376 KB	Output is correct
8	Correct	2 ms	256 KB	Output is correct
9	Correct	2 ms	256 KB	Output is correct
10	Correct	4 ms	376 KB	Output is correct
11	Correct	3 ms	376 KB	Output is correct
12	Correct	2 ms	376 KB	Output is correct
13	Correct	2 ms	252 KB	Output is correct
14	Correct	2 ms	376 KB	Output is correct
15	Correct	2 ms	376 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	376 KB	Output is correct
20	Correct	3 ms	256 KB	Output is correct
21	Correct	2 ms	376 KB	Output is correct
22	Correct	2 ms	376 KB	Output is correct
23	Correct	2 ms	376 KB	Output is correct
24	Correct	2 ms	380 KB	Output is correct
25	Correct	4 ms	504 KB	Output is correct
26	Correct	3 ms	504 KB	Output is correct
27	Correct	4 ms	376 KB	Output is correct
28	Correct	4 ms	504 KB	Output is correct
29	Correct	4 ms	504 KB	Output is correct
30	Correct	4 ms	508 KB	Output is correct
31	Correct	4 ms	508 KB	Output is correct
32	Correct	4 ms	504 KB	Output is correct
33	Correct	4 ms	504 KB	Output is correct
34	Correct	3 ms	504 KB	Output is correct
35	Correct	3 ms	504 KB	Output is correct
36	Correct	2 ms	504 KB	Output is correct
37	Correct	3 ms	504 KB	Output is correct
38	Correct	3 ms	504 KB	Output is correct
39	Correct	3 ms	504 KB	Output is correct
40	Correct	3 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	3 ms	504 KB	Output is correct
44	Correct	3 ms	504 KB	Output is correct
45	Correct	95 ms	7844 KB	Output is correct
46	Correct	97 ms	7976 KB	Output is correct
47	Correct	90 ms	7848 KB	Output is correct
48	Correct	90 ms	7816 KB	Output is correct
49	Correct	90 ms	7948 KB	Output is correct
50	Correct	86 ms	7900 KB	Output is correct
51	Correct	85 ms	7928 KB	Output is correct
52	Correct	98 ms	7892 KB	Output is correct
53	Correct	96 ms	7800 KB	Output is correct
54	Correct	88 ms	7800 KB	Output is correct
55	Correct	92 ms	7824 KB	Output is correct
56	Correct	88 ms	7928 KB	Output is correct
57	Correct	99 ms	7928 KB	Output is correct
58	Correct	93 ms	8004 KB	Output is correct
59	Correct	83 ms	7800 KB	Output is correct
60	Correct	86 ms	7928 KB	Output is correct
61	Correct	96 ms	7900 KB	Output is correct
62	Correct	78 ms	8312 KB	Output is correct
63	Correct	80 ms	8056 KB	Output is correct
64	Correct	85 ms	7928 KB	Output is correct
65	Correct	125 ms	7900 KB	Output is correct
66	Correct	133 ms	7928 KB	Output is correct
67	Correct	98 ms	7800 KB	Output is correct
68	Correct	103 ms	7928 KB	Output is correct
69	Correct	98 ms	7928 KB	Output is correct
70	Correct	99 ms	7900 KB	Output is correct
71	Correct	100 ms	8568 KB	Output is correct
72	Correct	101 ms	8568 KB	Output is correct
73	Correct	101 ms	8952 KB	Output is correct
74	Correct	101 ms	8824 KB	Output is correct
75	Correct	101 ms	9340 KB	Output is correct
76	Correct	104 ms	9464 KB	Output is correct
77	Correct	103 ms	9340 KB	Output is correct
78	Correct	90 ms	7800 KB	Output is correct
79	Correct	89 ms	7900 KB	Output is correct
80	Correct	967 ms	77556 KB	Output is correct
81	Correct	962 ms	77688 KB	Output is correct
82	Correct	1000 ms	77644 KB	Output is correct
83	Correct	982 ms	77592 KB	Output is correct
84	Correct	967 ms	77596 KB	Output is correct
85	Correct	942 ms	77724 KB	Output is correct
86	Correct	942 ms	77636 KB	Output is correct
87	Correct	1303 ms	77528 KB	Output is correct
88	Correct	1508 ms	77636 KB	Output is correct
89	Correct	1265 ms	77572 KB	Output is correct
90	Correct	1225 ms	77564 KB	Output is correct
91	Correct	1212 ms	77620 KB	Output is correct
92	Correct	1408 ms	77584 KB	Output is correct
93	Correct	1358 ms	77544 KB	Output is correct
94	Correct	903 ms	77628 KB	Output is correct
95	Correct	945 ms	77688 KB	Output is correct
96	Correct	943 ms	77740 KB	Output is correct
97	Correct	879 ms	80048 KB	Output is correct
98	Correct	914 ms	78536 KB	Output is correct
99	Correct	926 ms	78348 KB	Output is correct
100	Correct	2264 ms	77436 KB	Output is correct
101	Correct	2300 ms	77580 KB	Output is correct
102	Correct	1305 ms	77564 KB	Output is correct
103	Correct	1323 ms	77504 KB	Output is correct
104	Correct	1312 ms	77628 KB	Output is correct
105	Correct	1307 ms	77688 KB	Output is correct
106	Correct	1342 ms	85336 KB	Output is correct
107	Correct	1439 ms	85332 KB	Output is correct
108	Correct	1451 ms	88020 KB	Output is correct
109	Correct	1376 ms	88032 KB	Output is correct
110	Correct	1285 ms	93180 KB	Output is correct
111	Correct	1328 ms	93292 KB	Output is correct
112	Correct	1363 ms	93124 KB	Output is correct
113	Correct	981 ms	77660 KB	Output is correct
114	Correct	984 ms	77468 KB	Output is correct

Submission #197484

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