Submission #145013

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
145013	2019-08-18T11:57:10 Z	cheetose	Port Facility (JOI17_port_facility)	C++11	100 / 100	2288 ms	93396 KB

port_facility

#include<cstdio>
#include<cstdlib>
#include<iostream>
#include<vector>
#include<queue>
#include<bitset>
#include<string>
#include<stack>
#include<set>
#include<unordered_set>
#include<map>
#include<unordered_map>
#include<cstring>
#include<complex>
#include<cmath>
#include<iomanip>
#include<numeric>
#include<algorithm>
#include<list>
#include<functional>
#include<cassert>
#define mp make_pair
#define pb push_back
#define X first
#define Y second
#define y0 y12
#define y1 y22
#define INF 987654321
#define PI 3.141592653589793238462643383279502884
#define fup(i,a,b,c) for(int (i)=(a);(i)<=(b);(i)+=(c))
#define fdn(i,a,b,c) for(int (i)=(a);(i)>=(b);(i)-=(c))
#define MEM0(a) memset((a),0,sizeof(a));
#define MEM_1(a) memset((a),-1,sizeof(a));
#define ALL(a) a.begin(),a.end()
#define SYNC ios_base::sync_with_stdio(false);cin.tie(0)
using namespace std;
typedef long long ll;
typedef long double ld;
typedef double db;
typedef unsigned int uint;
typedef unsigned long long ull;
typedef pair<int, int> Pi;
typedef pair<ll, ll> Pll;
typedef pair<ld, ld> Pd;
typedef vector<int> Vi;
typedef vector<ll> Vll;
typedef vector<double> Vd;
typedef vector<Pi> VPi;
typedef vector<Pll> VPll;
typedef vector<Pd> VPd;
typedef tuple<int, int, int> iii;
typedef tuple<int,int,int,int> iiii;
typedef tuple<ll, ll, ll> LLL;
typedef vector<iii> Viii;
typedef vector<LLL> VLLL;
typedef complex<double> base;
const ll MOD = 1000000007;
ll POW(ll a, ll b, ll MMM = MOD) {ll ret=1; for(;b;b>>=1,a=(a*a)%MMM)if(b&1)ret=(ret*a)% MMM; return ret; }
ll gcd(ll a, ll b) { return b ? gcd(b, a%b) : a; }
ll lcm(ll a, ll b) { if (a == 0 || b == 0)return a + b; return a*(b / gcd(a, b)); }
int dx[] = { 0,1,0,-1,1,1,-1,-1 }, dy[] = { 1,0,-1,0,1,-1,1,-1 };

int parent[2000001];
int find(int a)
{
	if (parent[a] < 0)return a;
	return parent[a] = find(parent[a]);
}
void merge(int a, int b)
{
	a = find(a), b = find(b);
	if (a != b)
	{
		parent[a] += parent[b];
		parent[b] = a;
	}
}
VPi v;
map<int,int> M;
int main() {
	MEM_1(parent);
	int n;
	scanf("%d",&n);
	fup(i,0,n-1,1)
	{
		int x,y;
		scanf("%d%d",&x,&y);
		v.pb(mp(x,y));
	}
	sort(ALL(v));
	fup(i,0,n-1,1)
	{
		auto t1=M.lower_bound(v[i].X),t2=M.upper_bound(v[i].Y);
		if(t2!=M.begin())
		{
			while(t1!=t2)
			{
				merge(find(i),find(t1->Y+n));
				merge(find(i+n),find(t1->Y));
				if(find(t1->Y)==find(prev(t2)->Y))break;
				t1++;
			}
		}
		M[v[i].Y]=i;
	}
	fup(i,0,n-1,1)if(find(i)==find(i+n))return !printf("0");
	ll ans=1;
	fup(i,0,n-1,1)if(find(i)==i)ans=(ans<<1)%MOD;
    printf("%lld", ans);
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:83:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d",&n);
  ~~~~~^~~~~~~~~
port_facility.cpp:87:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d%d",&x,&y);
   ~~~~~^~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	8184 KB	Output is correct
2	Correct	9 ms	8184 KB	Output is correct
3	Correct	8 ms	8184 KB	Output is correct
4	Correct	9 ms	8184 KB	Output is correct
5	Correct	9 ms	8184 KB	Output is correct
6	Correct	9 ms	8184 KB	Output is correct
7	Correct	9 ms	8184 KB	Output is correct
8	Correct	9 ms	8184 KB	Output is correct
9	Correct	9 ms	8084 KB	Output is correct
10	Correct	9 ms	8184 KB	Output is correct
11	Correct	9 ms	8184 KB	Output is correct
12	Correct	9 ms	8156 KB	Output is correct
13	Correct	9 ms	8184 KB	Output is correct
14	Correct	8 ms	8188 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	9 ms	8184 KB	Output is correct
17	Correct	9 ms	8120 KB	Output is correct
18	Correct	9 ms	8184 KB	Output is correct
19	Correct	9 ms	8184 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	9 ms	8184 KB	Output is correct
22	Correct	9 ms	8184 KB	Output is correct
23	Correct	9 ms	8184 KB	Output is correct
24	Correct	9 ms	8184 KB	Output is correct

Subtask #2
12.0 / 12.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	8184 KB	Output is correct
2	Correct	9 ms	8184 KB	Output is correct
3	Correct	8 ms	8184 KB	Output is correct
4	Correct	9 ms	8184 KB	Output is correct
5	Correct	9 ms	8184 KB	Output is correct
6	Correct	9 ms	8184 KB	Output is correct
7	Correct	9 ms	8184 KB	Output is correct
8	Correct	9 ms	8184 KB	Output is correct
9	Correct	9 ms	8084 KB	Output is correct
10	Correct	9 ms	8184 KB	Output is correct
11	Correct	9 ms	8184 KB	Output is correct
12	Correct	9 ms	8156 KB	Output is correct
13	Correct	9 ms	8184 KB	Output is correct
14	Correct	8 ms	8188 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	9 ms	8184 KB	Output is correct
17	Correct	9 ms	8120 KB	Output is correct
18	Correct	9 ms	8184 KB	Output is correct
19	Correct	9 ms	8184 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	9 ms	8184 KB	Output is correct
22	Correct	9 ms	8184 KB	Output is correct
23	Correct	9 ms	8184 KB	Output is correct
24	Correct	9 ms	8184 KB	Output is correct
25	Correct	10 ms	8312 KB	Output is correct
26	Correct	10 ms	8440 KB	Output is correct
27	Correct	10 ms	8312 KB	Output is correct
28	Correct	10 ms	8312 KB	Output is correct
29	Correct	10 ms	8312 KB	Output is correct
30	Correct	10 ms	8312 KB	Output is correct
31	Correct	10 ms	8288 KB	Output is correct
32	Correct	10 ms	8312 KB	Output is correct
33	Correct	10 ms	8316 KB	Output is correct
34	Correct	10 ms	8312 KB	Output is correct
35	Correct	10 ms	8312 KB	Output is correct
36	Correct	10 ms	8312 KB	Output is correct
37	Correct	10 ms	8312 KB	Output is correct
38	Correct	10 ms	8312 KB	Output is correct
39	Correct	10 ms	8312 KB	Output is correct
40	Correct	10 ms	8312 KB	Output is correct
41	Correct	10 ms	8312 KB	Output is correct
42	Correct	10 ms	8312 KB	Output is correct
43	Correct	10 ms	8312 KB	Output is correct
44	Correct	10 ms	8232 KB	Output is correct

Subtask #3
56.0 / 56.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	8184 KB	Output is correct
2	Correct	9 ms	8184 KB	Output is correct
3	Correct	8 ms	8184 KB	Output is correct
4	Correct	9 ms	8184 KB	Output is correct
5	Correct	9 ms	8184 KB	Output is correct
6	Correct	9 ms	8184 KB	Output is correct
7	Correct	9 ms	8184 KB	Output is correct
8	Correct	9 ms	8184 KB	Output is correct
9	Correct	9 ms	8084 KB	Output is correct
10	Correct	9 ms	8184 KB	Output is correct
11	Correct	9 ms	8184 KB	Output is correct
12	Correct	9 ms	8156 KB	Output is correct
13	Correct	9 ms	8184 KB	Output is correct
14	Correct	8 ms	8188 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	9 ms	8184 KB	Output is correct
17	Correct	9 ms	8120 KB	Output is correct
18	Correct	9 ms	8184 KB	Output is correct
19	Correct	9 ms	8184 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	9 ms	8184 KB	Output is correct
22	Correct	9 ms	8184 KB	Output is correct
23	Correct	9 ms	8184 KB	Output is correct
24	Correct	9 ms	8184 KB	Output is correct
25	Correct	10 ms	8312 KB	Output is correct
26	Correct	10 ms	8440 KB	Output is correct
27	Correct	10 ms	8312 KB	Output is correct
28	Correct	10 ms	8312 KB	Output is correct
29	Correct	10 ms	8312 KB	Output is correct
30	Correct	10 ms	8312 KB	Output is correct
31	Correct	10 ms	8288 KB	Output is correct
32	Correct	10 ms	8312 KB	Output is correct
33	Correct	10 ms	8316 KB	Output is correct
34	Correct	10 ms	8312 KB	Output is correct
35	Correct	10 ms	8312 KB	Output is correct
36	Correct	10 ms	8312 KB	Output is correct
37	Correct	10 ms	8312 KB	Output is correct
38	Correct	10 ms	8312 KB	Output is correct
39	Correct	10 ms	8312 KB	Output is correct
40	Correct	10 ms	8312 KB	Output is correct
41	Correct	10 ms	8312 KB	Output is correct
42	Correct	10 ms	8312 KB	Output is correct
43	Correct	10 ms	8312 KB	Output is correct
44	Correct	10 ms	8232 KB	Output is correct
45	Correct	95 ms	14952 KB	Output is correct
46	Correct	96 ms	14824 KB	Output is correct
47	Correct	97 ms	14952 KB	Output is correct
48	Correct	96 ms	14956 KB	Output is correct
49	Correct	96 ms	14932 KB	Output is correct
50	Correct	92 ms	14952 KB	Output is correct
51	Correct	92 ms	14956 KB	Output is correct
52	Correct	102 ms	14992 KB	Output is correct
53	Correct	101 ms	14956 KB	Output is correct
54	Correct	93 ms	14956 KB	Output is correct
55	Correct	93 ms	14828 KB	Output is correct
56	Correct	93 ms	14952 KB	Output is correct
57	Correct	102 ms	14824 KB	Output is correct
58	Correct	96 ms	14824 KB	Output is correct
59	Correct	89 ms	14896 KB	Output is correct
60	Correct	92 ms	14924 KB	Output is correct
61	Correct	112 ms	14928 KB	Output is correct
62	Correct	83 ms	15340 KB	Output is correct
63	Correct	86 ms	15080 KB	Output is correct
64	Correct	91 ms	14956 KB	Output is correct
65	Correct	173 ms	14828 KB	Output is correct
66	Correct	135 ms	14944 KB	Output is correct
67	Correct	108 ms	14880 KB	Output is correct
68	Correct	106 ms	14912 KB	Output is correct
69	Correct	103 ms	14932 KB	Output is correct
70	Correct	107 ms	14956 KB	Output is correct
71	Correct	107 ms	15720 KB	Output is correct
72	Correct	107 ms	15720 KB	Output is correct
73	Correct	113 ms	15956 KB	Output is correct
74	Correct	104 ms	15980 KB	Output is correct
75	Correct	106 ms	16492 KB	Output is correct
76	Correct	110 ms	16488 KB	Output is correct
77	Correct	108 ms	16464 KB	Output is correct
78	Correct	98 ms	14956 KB	Output is correct
79	Correct	97 ms	14996 KB	Output is correct

Subtask #4
22.0 / 22.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	9 ms	8184 KB	Output is correct
2	Correct	9 ms	8184 KB	Output is correct
3	Correct	8 ms	8184 KB	Output is correct
4	Correct	9 ms	8184 KB	Output is correct
5	Correct	9 ms	8184 KB	Output is correct
6	Correct	9 ms	8184 KB	Output is correct
7	Correct	9 ms	8184 KB	Output is correct
8	Correct	9 ms	8184 KB	Output is correct
9	Correct	9 ms	8084 KB	Output is correct
10	Correct	9 ms	8184 KB	Output is correct
11	Correct	9 ms	8184 KB	Output is correct
12	Correct	9 ms	8156 KB	Output is correct
13	Correct	9 ms	8184 KB	Output is correct
14	Correct	8 ms	8188 KB	Output is correct
15	Correct	8 ms	8184 KB	Output is correct
16	Correct	9 ms	8184 KB	Output is correct
17	Correct	9 ms	8120 KB	Output is correct
18	Correct	9 ms	8184 KB	Output is correct
19	Correct	9 ms	8184 KB	Output is correct
20	Correct	9 ms	8184 KB	Output is correct
21	Correct	9 ms	8184 KB	Output is correct
22	Correct	9 ms	8184 KB	Output is correct
23	Correct	9 ms	8184 KB	Output is correct
24	Correct	9 ms	8184 KB	Output is correct
25	Correct	10 ms	8312 KB	Output is correct
26	Correct	10 ms	8440 KB	Output is correct
27	Correct	10 ms	8312 KB	Output is correct
28	Correct	10 ms	8312 KB	Output is correct
29	Correct	10 ms	8312 KB	Output is correct
30	Correct	10 ms	8312 KB	Output is correct
31	Correct	10 ms	8288 KB	Output is correct
32	Correct	10 ms	8312 KB	Output is correct
33	Correct	10 ms	8316 KB	Output is correct
34	Correct	10 ms	8312 KB	Output is correct
35	Correct	10 ms	8312 KB	Output is correct
36	Correct	10 ms	8312 KB	Output is correct
37	Correct	10 ms	8312 KB	Output is correct
38	Correct	10 ms	8312 KB	Output is correct
39	Correct	10 ms	8312 KB	Output is correct
40	Correct	10 ms	8312 KB	Output is correct
41	Correct	10 ms	8312 KB	Output is correct
42	Correct	10 ms	8312 KB	Output is correct
43	Correct	10 ms	8312 KB	Output is correct
44	Correct	10 ms	8232 KB	Output is correct
45	Correct	95 ms	14952 KB	Output is correct
46	Correct	96 ms	14824 KB	Output is correct
47	Correct	97 ms	14952 KB	Output is correct
48	Correct	96 ms	14956 KB	Output is correct
49	Correct	96 ms	14932 KB	Output is correct
50	Correct	92 ms	14952 KB	Output is correct
51	Correct	92 ms	14956 KB	Output is correct
52	Correct	102 ms	14992 KB	Output is correct
53	Correct	101 ms	14956 KB	Output is correct
54	Correct	93 ms	14956 KB	Output is correct
55	Correct	93 ms	14828 KB	Output is correct
56	Correct	93 ms	14952 KB	Output is correct
57	Correct	102 ms	14824 KB	Output is correct
58	Correct	96 ms	14824 KB	Output is correct
59	Correct	89 ms	14896 KB	Output is correct
60	Correct	92 ms	14924 KB	Output is correct
61	Correct	112 ms	14928 KB	Output is correct
62	Correct	83 ms	15340 KB	Output is correct
63	Correct	86 ms	15080 KB	Output is correct
64	Correct	91 ms	14956 KB	Output is correct
65	Correct	173 ms	14828 KB	Output is correct
66	Correct	135 ms	14944 KB	Output is correct
67	Correct	108 ms	14880 KB	Output is correct
68	Correct	106 ms	14912 KB	Output is correct
69	Correct	103 ms	14932 KB	Output is correct
70	Correct	107 ms	14956 KB	Output is correct
71	Correct	107 ms	15720 KB	Output is correct
72	Correct	107 ms	15720 KB	Output is correct
73	Correct	113 ms	15956 KB	Output is correct
74	Correct	104 ms	15980 KB	Output is correct
75	Correct	106 ms	16492 KB	Output is correct
76	Correct	110 ms	16488 KB	Output is correct
77	Correct	108 ms	16464 KB	Output is correct
78	Correct	98 ms	14956 KB	Output is correct
79	Correct	97 ms	14996 KB	Output is correct
80	Correct	975 ms	77820 KB	Output is correct
81	Correct	970 ms	77844 KB	Output is correct
82	Correct	974 ms	77520 KB	Output is correct
83	Correct	979 ms	77648 KB	Output is correct
84	Correct	977 ms	77648 KB	Output is correct
85	Correct	937 ms	77768 KB	Output is correct
86	Correct	949 ms	77648 KB	Output is correct
87	Correct	1560 ms	77776 KB	Output is correct
88	Correct	1524 ms	77580 KB	Output is correct
89	Correct	1330 ms	77800 KB	Output is correct
90	Correct	1347 ms	77568 KB	Output is correct
91	Correct	1400 ms	77780 KB	Output is correct
92	Correct	1582 ms	77532 KB	Output is correct
93	Correct	1579 ms	77688 KB	Output is correct
94	Correct	909 ms	77776 KB	Output is correct
95	Correct	952 ms	77568 KB	Output is correct
96	Correct	952 ms	77648 KB	Output is correct
97	Correct	875 ms	80260 KB	Output is correct
98	Correct	921 ms	78672 KB	Output is correct
99	Correct	935 ms	78288 KB	Output is correct
100	Correct	2220 ms	77620 KB	Output is correct
101	Correct	2288 ms	77584 KB	Output is correct
102	Correct	1382 ms	77648 KB	Output is correct
103	Correct	1539 ms	77660 KB	Output is correct
104	Correct	1363 ms	77648 KB	Output is correct
105	Correct	1336 ms	77572 KB	Output is correct
106	Correct	1353 ms	85368 KB	Output is correct
107	Correct	1508 ms	85628 KB	Output is correct
108	Correct	1535 ms	87968 KB	Output is correct
109	Correct	1459 ms	88156 KB	Output is correct
110	Correct	1320 ms	93396 KB	Output is correct
111	Correct	1435 ms	93348 KB	Output is correct
112	Correct	1628 ms	93276 KB	Output is correct
113	Correct	970 ms	77648 KB	Output is correct
114	Correct	989 ms	77520 KB	Output is correct

Submission #145013

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