Submission #97544

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
97544	2019-02-17T00:45:34 Z	silxikys	Port Facility (JOI17_port_facility)	C++14	100 / 100	1532 ms	84796 KB

port_facility

#include <bits/stdc++.h>
 
#define lld long long
#define pii pair<int,int>
#define pll pair<lld,lld>
#define pb push_back
#define next nextt
#define left leftt
#define right rightt
#define Inf 1000000000
#define Linf 1000000000000000000LL
#define Mod 1000000007LL
 
using namespace std;
 
int N; lld ans,inv;
struct data{
	int x,y;
	bool operator < (const data &cmp) const{
		if(x != cmp.x) return x < cmp.x;
		return y < cmp.y;
	}
}a[1000002];
int par[2000002];
map<int,int> Map;
 
void impossible(){puts("0");exit(0);}
int getpar(int x){return (x == par[x])?x:(par[x]=getpar(par[x]));};
void merge(int x,int y){
	x = getpar(x); y = getpar(y);
	par[x] = y;
}
void uni(int x,int y){
	merge(x,y+N); merge(x+N,y);
	if(getpar(x) == getpar(x+N) || getpar(y) == getpar(y+N)) impossible();
}
 
int main(){
	scanf("%d",&N); ans = 1;
	for(int i=1; i<=N; i++){
		scanf("%d %d",&a[i].x,&a[i].y);
	}
	sort(a+1,a+N+1);
	iota(par+1,par+N*2+1,1);
	for(int i=1; i<=N; i++){
		auto it1 = Map.lower_bound(a[i].x);
		auto it2 = Map.lower_bound(a[i].y);
		while(it1 != it2){
			uni(it1->second,i);
			auto it = it2; it--;
			if(it != it2 && getpar(it->second) == getpar(it1->second)) break;
			it1++;
		}
		Map[a[i].y] = i;
	}
	for(int i=1; i<=N; i++){
		if(getpar(i) == i){
			ans *= 2; ans %= Mod;
		}
	}
	printf("%lld\n",ans);
 
	return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:39:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&N); ans = 1;
  ~~~~~^~~~~~~~~
port_facility.cpp:41:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&a[i].x,&a[i].y);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	256 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	3 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	3 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	3 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	3 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	3 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	256 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	3 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	3 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	3 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	3 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	3 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	4 ms	512 KB	Output is correct
26	Correct	4 ms	512 KB	Output is correct
27	Correct	4 ms	512 KB	Output is correct
28	Correct	3 ms	512 KB	Output is correct
29	Correct	3 ms	512 KB	Output is correct
30	Correct	3 ms	512 KB	Output is correct
31	Correct	4 ms	512 KB	Output is correct
32	Correct	4 ms	512 KB	Output is correct
33	Correct	4 ms	432 KB	Output is correct
34	Correct	3 ms	384 KB	Output is correct
35	Correct	2 ms	512 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	3 ms	384 KB	Output is correct
38	Correct	3 ms	384 KB	Output is correct
39	Correct	4 ms	512 KB	Output is correct
40	Correct	3 ms	512 KB	Output is correct
41	Correct	0 ms	512 KB	Output is correct
42	Correct	4 ms	512 KB	Output is correct
43	Correct	3 ms	512 KB	Output is correct
44	Correct	4 ms	512 KB	Output is correct

Subtask #3
56.0 / 56.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	256 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	3 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	3 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	3 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	3 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	3 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	4 ms	512 KB	Output is correct
26	Correct	4 ms	512 KB	Output is correct
27	Correct	4 ms	512 KB	Output is correct
28	Correct	3 ms	512 KB	Output is correct
29	Correct	3 ms	512 KB	Output is correct
30	Correct	3 ms	512 KB	Output is correct
31	Correct	4 ms	512 KB	Output is correct
32	Correct	4 ms	512 KB	Output is correct
33	Correct	4 ms	432 KB	Output is correct
34	Correct	3 ms	384 KB	Output is correct
35	Correct	2 ms	512 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	3 ms	384 KB	Output is correct
38	Correct	3 ms	384 KB	Output is correct
39	Correct	4 ms	512 KB	Output is correct
40	Correct	3 ms	512 KB	Output is correct
41	Correct	0 ms	512 KB	Output is correct
42	Correct	4 ms	512 KB	Output is correct
43	Correct	3 ms	512 KB	Output is correct
44	Correct	4 ms	512 KB	Output is correct
45	Correct	95 ms	6776 KB	Output is correct
46	Correct	103 ms	7876 KB	Output is correct
47	Correct	93 ms	7928 KB	Output is correct
48	Correct	100 ms	7928 KB	Output is correct
49	Correct	87 ms	7844 KB	Output is correct
50	Correct	42 ms	4116 KB	Output is correct
51	Correct	57 ms	5124 KB	Output is correct
52	Correct	86 ms	7848 KB	Output is correct
53	Correct	82 ms	7800 KB	Output is correct
54	Correct	32 ms	3172 KB	Output is correct
55	Correct	50 ms	3280 KB	Output is correct
56	Correct	41 ms	3320 KB	Output is correct
57	Correct	90 ms	7800 KB	Output is correct
58	Correct	89 ms	7800 KB	Output is correct
59	Correct	107 ms	7800 KB	Output is correct
60	Correct	95 ms	7800 KB	Output is correct
61	Correct	91 ms	7800 KB	Output is correct
62	Correct	36 ms	3192 KB	Output is correct
63	Correct	41 ms	3124 KB	Output is correct
64	Correct	42 ms	3192 KB	Output is correct
65	Correct	52 ms	3196 KB	Output is correct
66	Correct	37 ms	3192 KB	Output is correct
67	Correct	96 ms	8232 KB	Output is correct
68	Correct	102 ms	8184 KB	Output is correct
69	Correct	102 ms	8224 KB	Output is correct
70	Correct	108 ms	8224 KB	Output is correct
71	Correct	103 ms	8648 KB	Output is correct
72	Correct	96 ms	8628 KB	Output is correct
73	Correct	95 ms	8824 KB	Output is correct
74	Correct	105 ms	8952 KB	Output is correct
75	Correct	119 ms	9336 KB	Output is correct
76	Correct	96 ms	9464 KB	Output is correct
77	Correct	103 ms	9368 KB	Output is correct
78	Correct	78 ms	7800 KB	Output is correct
79	Correct	93 ms	7852 KB	Output is correct

Subtask #4
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	384 KB	Output is correct
2	Correct	2 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	384 KB	Output is correct
5	Correct	2 ms	256 KB	Output is correct
6	Correct	2 ms	384 KB	Output is correct
7	Correct	2 ms	256 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	3 ms	384 KB	Output is correct
12	Correct	2 ms	384 KB	Output is correct
13	Correct	2 ms	256 KB	Output is correct
14	Correct	0 ms	256 KB	Output is correct
15	Correct	3 ms	384 KB	Output is correct
16	Correct	2 ms	384 KB	Output is correct
17	Correct	3 ms	384 KB	Output is correct
18	Correct	2 ms	384 KB	Output is correct
19	Correct	3 ms	256 KB	Output is correct
20	Correct	4 ms	256 KB	Output is correct
21	Correct	3 ms	256 KB	Output is correct
22	Correct	2 ms	256 KB	Output is correct
23	Correct	2 ms	384 KB	Output is correct
24	Correct	2 ms	384 KB	Output is correct
25	Correct	4 ms	512 KB	Output is correct
26	Correct	4 ms	512 KB	Output is correct
27	Correct	4 ms	512 KB	Output is correct
28	Correct	3 ms	512 KB	Output is correct
29	Correct	3 ms	512 KB	Output is correct
30	Correct	3 ms	512 KB	Output is correct
31	Correct	4 ms	512 KB	Output is correct
32	Correct	4 ms	512 KB	Output is correct
33	Correct	4 ms	432 KB	Output is correct
34	Correct	3 ms	384 KB	Output is correct
35	Correct	2 ms	512 KB	Output is correct
36	Correct	3 ms	512 KB	Output is correct
37	Correct	3 ms	384 KB	Output is correct
38	Correct	3 ms	384 KB	Output is correct
39	Correct	4 ms	512 KB	Output is correct
40	Correct	3 ms	512 KB	Output is correct
41	Correct	0 ms	512 KB	Output is correct
42	Correct	4 ms	512 KB	Output is correct
43	Correct	3 ms	512 KB	Output is correct
44	Correct	4 ms	512 KB	Output is correct
45	Correct	95 ms	6776 KB	Output is correct
46	Correct	103 ms	7876 KB	Output is correct
47	Correct	93 ms	7928 KB	Output is correct
48	Correct	100 ms	7928 KB	Output is correct
49	Correct	87 ms	7844 KB	Output is correct
50	Correct	42 ms	4116 KB	Output is correct
51	Correct	57 ms	5124 KB	Output is correct
52	Correct	86 ms	7848 KB	Output is correct
53	Correct	82 ms	7800 KB	Output is correct
54	Correct	32 ms	3172 KB	Output is correct
55	Correct	50 ms	3280 KB	Output is correct
56	Correct	41 ms	3320 KB	Output is correct
57	Correct	90 ms	7800 KB	Output is correct
58	Correct	89 ms	7800 KB	Output is correct
59	Correct	107 ms	7800 KB	Output is correct
60	Correct	95 ms	7800 KB	Output is correct
61	Correct	91 ms	7800 KB	Output is correct
62	Correct	36 ms	3192 KB	Output is correct
63	Correct	41 ms	3124 KB	Output is correct
64	Correct	42 ms	3192 KB	Output is correct
65	Correct	52 ms	3196 KB	Output is correct
66	Correct	37 ms	3192 KB	Output is correct
67	Correct	96 ms	8232 KB	Output is correct
68	Correct	102 ms	8184 KB	Output is correct
69	Correct	102 ms	8224 KB	Output is correct
70	Correct	108 ms	8224 KB	Output is correct
71	Correct	103 ms	8648 KB	Output is correct
72	Correct	96 ms	8628 KB	Output is correct
73	Correct	95 ms	8824 KB	Output is correct
74	Correct	105 ms	8952 KB	Output is correct
75	Correct	119 ms	9336 KB	Output is correct
76	Correct	96 ms	9464 KB	Output is correct
77	Correct	103 ms	9368 KB	Output is correct
78	Correct	78 ms	7800 KB	Output is correct
79	Correct	93 ms	7852 KB	Output is correct
80	Correct	962 ms	69112 KB	Output is correct
81	Correct	1194 ms	69156 KB	Output is correct
82	Correct	969 ms	69100 KB	Output is correct
83	Correct	1051 ms	69072 KB	Output is correct
84	Correct	983 ms	69152 KB	Output is correct
85	Correct	582 ms	40184 KB	Output is correct
86	Correct	599 ms	45916 KB	Output is correct
87	Correct	1532 ms	69072 KB	Output is correct
88	Correct	1421 ms	69196 KB	Output is correct
89	Correct	452 ms	30584 KB	Output is correct
90	Correct	429 ms	22064 KB	Output is correct
91	Correct	432 ms	22136 KB	Output is correct
92	Correct	1366 ms	69120 KB	Output is correct
93	Correct	1436 ms	69072 KB	Output is correct
94	Correct	939 ms	69112 KB	Output is correct
95	Correct	932 ms	69180 KB	Output is correct
96	Correct	1036 ms	69212 KB	Output is correct
97	Correct	574 ms	35120 KB	Output is correct
98	Correct	674 ms	41464 KB	Output is correct
99	Correct	540 ms	28572 KB	Output is correct
100	Correct	448 ms	22136 KB	Output is correct
101	Correct	521 ms	22280 KB	Output is correct
102	Correct	1331 ms	73068 KB	Output is correct
103	Correct	1365 ms	73248 KB	Output is correct
104	Correct	1275 ms	72600 KB	Output is correct
105	Correct	1377 ms	72724 KB	Output is correct
106	Correct	1369 ms	77072 KB	Output is correct
107	Correct	1362 ms	76884 KB	Output is correct
108	Correct	1363 ms	79488 KB	Output is correct
109	Correct	1372 ms	79580 KB	Output is correct
110	Correct	1517 ms	84796 KB	Output is correct
111	Correct	1424 ms	84784 KB	Output is correct
112	Correct	1432 ms	84772 KB	Output is correct
113	Correct	970 ms	69196 KB	Output is correct
114	Correct	1057 ms	77664 KB	Output is correct

Submission #97544

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