oj.uz

Submission #427889

# Submission time Handle Problem Language Result Execution time Memory
427889 2021-06-15T03:59:58 Z errorgorn Port Facility (JOI17_port_facility) C++17
100 / 100
 1755 ms 288008 KB 
#include <bits/stdc++.h>
using namespace std;
 
#define ll long long
#define ii pair<int,int>
#define fi first
#define se second
#define endl '\n'
 
#define puf push_front
#define pof pop_front
#define pub push_back
#define pob pop_back
#define lb lower_bound
#define ub upper_bound
 
#define rep(x,s,e) for (auto x=s-(s>e);x!=e-(s>e);s<e?x++:x--)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
void rage(){
	cout<<0<<endl;
	exit(0);
} 

const int MOD=1000000007;
 
int n;
ii arr[1000005];
vector<int> al[1000005];
bool col[1000005];
bool vis[1000005];

struct UFDS{
	int p[1000005];
	int par[1000005];
	
	UFDS(){
		rep(x,0,1000005){
			p[x]=x;
			par[x]=0;
		}
	}
	
	ii parent(int i){
		if (p[i]==i) return ii(i,0);
		else{
			ii temp=parent(p[i]);
			if (par[i]) temp.se^=1;
			tie(p[i],par[i])=temp;
			return temp;
		}
	}
	
	void unions(int i,int j){
		ii pi=parent(i),pj=parent(j);
		
		if (pi.fi==pj.fi){
			if (pi.se==pj.se) rage();
		}
		else{
			p[pi.fi]=pj.fi;
			par[pi.fi]=pi.se^pj.se^1;
		}
	}
} ufds;
 
struct node{
	vector<int> v[4000010];
	const int BUF=2000005;
	
	node (){
	}
	
	void update(int i,int j,int k){
		i+=BUF,j+=BUF+1;
		
		for (;i<j;i>>=1,j>>=1){
			if (i&1){
				v[i].pub(k);
				i++;
			}
			if (j&1){
				j--;
				v[j].pub(k);
			}
		}
	}
	
	void query(int i,int k,int idx){
		i+=BUF;
		
		while (i){
			for (auto &it:v[i]){
				ufds.unions(it,idx);
			}
			while (sz(v[i])>1) v[i].pob();
			
			i>>=1;
		}
	}
} root=node();
 
int ans=1;
 
int main(){
	cin.tie(0);
	cout.tie(0);
	cin.sync_with_stdio(false);
	
	cin>>n;
	
	rep(x,0,n){
		cin>>arr[x].fi>>arr[x].se;
	}
	
	sort(arr,arr+n,[](ii i,ii j){
		return i.se<j.se;
	});
	
	rep(x,0,n){
		//cout<<"arr: "<<x<<" "<<arr[x].fi<<" "<<arr[x].se<<endl;
		root.query(arr[x].fi,arr[x].se,x);
		root.update(arr[x].fi,arr[x].se,x);
	}
	
	rep(x,0,n) if (ufds.p[x]==x){
		ans=2*ans%MOD;
	}
	
	cout<<ans<<endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 125532 KB Output is correct
2 Correct 84 ms 125508 KB Output is correct
3 Correct 74 ms 125452 KB Output is correct
4 Correct 74 ms 125540 KB Output is correct
5 Correct 73 ms 125460 KB Output is correct
6 Correct 70 ms 125472 KB Output is correct
7 Correct 71 ms 125456 KB Output is correct
8 Correct 79 ms 125492 KB Output is correct
9 Correct 75 ms 125540 KB Output is correct
10 Correct 72 ms 125564 KB Output is correct
11 Correct 78 ms 125468 KB Output is correct
12 Correct 72 ms 125668 KB Output is correct
13 Correct 74 ms 125488 KB Output is correct
14 Correct 70 ms 125508 KB Output is correct
15 Correct 70 ms 125508 KB Output is correct
16 Correct 81 ms 125508 KB Output is correct
17 Correct 70 ms 125452 KB Output is correct
18 Correct 82 ms 125512 KB Output is correct
19 Correct 72 ms 125512 KB Output is correct
20 Correct 68 ms 125508 KB Output is correct
21 Correct 80 ms 125524 KB Output is correct
22 Correct 83 ms 125476 KB Output is correct
23 Correct 75 ms 125508 KB Output is correct
24 Correct 77 ms 125544 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 125532 KB Output is correct
2 Correct 84 ms 125508 KB Output is correct
3 Correct 74 ms 125452 KB Output is correct
4 Correct 74 ms 125540 KB Output is correct
5 Correct 73 ms 125460 KB Output is correct
6 Correct 70 ms 125472 KB Output is correct
7 Correct 71 ms 125456 KB Output is correct
8 Correct 79 ms 125492 KB Output is correct
9 Correct 75 ms 125540 KB Output is correct
10 Correct 72 ms 125564 KB Output is correct
11 Correct 78 ms 125468 KB Output is correct
12 Correct 72 ms 125668 KB Output is correct
13 Correct 74 ms 125488 KB Output is correct
14 Correct 70 ms 125508 KB Output is correct
15 Correct 70 ms 125508 KB Output is correct
16 Correct 81 ms 125508 KB Output is correct
17 Correct 70 ms 125452 KB Output is correct
18 Correct 82 ms 125512 KB Output is correct
19 Correct 72 ms 125512 KB Output is correct
20 Correct 68 ms 125508 KB Output is correct
21 Correct 80 ms 125524 KB Output is correct
22 Correct 83 ms 125476 KB Output is correct
23 Correct 75 ms 125508 KB Output is correct
24 Correct 77 ms 125544 KB Output is correct
25 Correct 74 ms 125736 KB Output is correct
26 Correct 81 ms 125636 KB Output is correct
27 Correct 75 ms 125708 KB Output is correct
28 Correct 73 ms 125712 KB Output is correct
29 Correct 76 ms 125832 KB Output is correct
30 Correct 71 ms 125672 KB Output is correct
31 Correct 82 ms 125740 KB Output is correct
32 Correct 75 ms 125764 KB Output is correct
33 Correct 79 ms 125508 KB Output is correct
34 Correct 77 ms 125556 KB Output is correct
35 Correct 82 ms 125544 KB Output is correct
36 Correct 74 ms 125740 KB Output is correct
37 Correct 72 ms 125536 KB Output is correct
38 Correct 69 ms 125508 KB Output is correct
39 Correct 76 ms 125668 KB Output is correct
40 Correct 75 ms 125584 KB Output is correct
41 Correct 74 ms 125764 KB Output is correct
42 Correct 72 ms 125764 KB Output is correct
43 Correct 75 ms 125636 KB Output is correct
44 Correct 72 ms 125792 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 125532 KB Output is correct
2 Correct 84 ms 125508 KB Output is correct
3 Correct 74 ms 125452 KB Output is correct
4 Correct 74 ms 125540 KB Output is correct
5 Correct 73 ms 125460 KB Output is correct
6 Correct 70 ms 125472 KB Output is correct
7 Correct 71 ms 125456 KB Output is correct
8 Correct 79 ms 125492 KB Output is correct
9 Correct 75 ms 125540 KB Output is correct
10 Correct 72 ms 125564 KB Output is correct
11 Correct 78 ms 125468 KB Output is correct
12 Correct 72 ms 125668 KB Output is correct
13 Correct 74 ms 125488 KB Output is correct
14 Correct 70 ms 125508 KB Output is correct
15 Correct 70 ms 125508 KB Output is correct
16 Correct 81 ms 125508 KB Output is correct
17 Correct 70 ms 125452 KB Output is correct
18 Correct 82 ms 125512 KB Output is correct
19 Correct 72 ms 125512 KB Output is correct
20 Correct 68 ms 125508 KB Output is correct
21 Correct 80 ms 125524 KB Output is correct
22 Correct 83 ms 125476 KB Output is correct
23 Correct 75 ms 125508 KB Output is correct
24 Correct 77 ms 125544 KB Output is correct
25 Correct 74 ms 125736 KB Output is correct
26 Correct 81 ms 125636 KB Output is correct
27 Correct 75 ms 125708 KB Output is correct
28 Correct 73 ms 125712 KB Output is correct
29 Correct 76 ms 125832 KB Output is correct
30 Correct 71 ms 125672 KB Output is correct
31 Correct 82 ms 125740 KB Output is correct
32 Correct 75 ms 125764 KB Output is correct
33 Correct 79 ms 125508 KB Output is correct
34 Correct 77 ms 125556 KB Output is correct
35 Correct 82 ms 125544 KB Output is correct
36 Correct 74 ms 125740 KB Output is correct
37 Correct 72 ms 125536 KB Output is correct
38 Correct 69 ms 125508 KB Output is correct
39 Correct 76 ms 125668 KB Output is correct
40 Correct 75 ms 125584 KB Output is correct
41 Correct 74 ms 125764 KB Output is correct
42 Correct 72 ms 125764 KB Output is correct
43 Correct 75 ms 125636 KB Output is correct
44 Correct 72 ms 125792 KB Output is correct
45 Correct 217 ms 135852 KB Output is correct
46 Correct 194 ms 135808 KB Output is correct
47 Correct 175 ms 135836 KB Output is correct
48 Correct 185 ms 135832 KB Output is correct
49 Correct 180 ms 135984 KB Output is correct
50 Correct 157 ms 132972 KB Output is correct
51 Correct 132 ms 128356 KB Output is correct
52 Correct 121 ms 129476 KB Output is correct
53 Correct 169 ms 137360 KB Output is correct
54 Correct 114 ms 126288 KB Output is correct
55 Correct 103 ms 126356 KB Output is correct
56 Correct 102 ms 126256 KB Output is correct
57 Correct 126 ms 132624 KB Output is correct
58 Correct 122 ms 132548 KB Output is correct
59 Correct 169 ms 134552 KB Output is correct
60 Correct 167 ms 134980 KB Output is correct
61 Correct 177 ms 135320 KB Output is correct
62 Correct 121 ms 128436 KB Output is correct
63 Correct 182 ms 132008 KB Output is correct
64 Correct 165 ms 133224 KB Output is correct
65 Correct 104 ms 126320 KB Output is correct
66 Correct 112 ms 126464 KB Output is correct
67 Correct 250 ms 138884 KB Output is correct
68 Correct 205 ms 138988 KB Output is correct
69 Correct 204 ms 139172 KB Output is correct
70 Correct 228 ms 139040 KB Output is correct
71 Correct 171 ms 137668 KB Output is correct
72 Correct 167 ms 137708 KB Output is correct
73 Correct 178 ms 137740 KB Output is correct
74 Correct 172 ms 137856 KB Output is correct
75 Correct 134 ms 135660 KB Output is correct
76 Correct 124 ms 132128 KB Output is correct
77 Correct 129 ms 132160 KB Output is correct
78 Correct 176 ms 135860 KB Output is correct
79 Correct 176 ms 135916 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 74 ms 125532 KB Output is correct
2 Correct 84 ms 125508 KB Output is correct
3 Correct 74 ms 125452 KB Output is correct
4 Correct 74 ms 125540 KB Output is correct
5 Correct 73 ms 125460 KB Output is correct
6 Correct 70 ms 125472 KB Output is correct
7 Correct 71 ms 125456 KB Output is correct
8 Correct 79 ms 125492 KB Output is correct
9 Correct 75 ms 125540 KB Output is correct
10 Correct 72 ms 125564 KB Output is correct
11 Correct 78 ms 125468 KB Output is correct
12 Correct 72 ms 125668 KB Output is correct
13 Correct 74 ms 125488 KB Output is correct
14 Correct 70 ms 125508 KB Output is correct
15 Correct 70 ms 125508 KB Output is correct
16 Correct 81 ms 125508 KB Output is correct
17 Correct 70 ms 125452 KB Output is correct
18 Correct 82 ms 125512 KB Output is correct
19 Correct 72 ms 125512 KB Output is correct
20 Correct 68 ms 125508 KB Output is correct
21 Correct 80 ms 125524 KB Output is correct
22 Correct 83 ms 125476 KB Output is correct
23 Correct 75 ms 125508 KB Output is correct
24 Correct 77 ms 125544 KB Output is correct
25 Correct 74 ms 125736 KB Output is correct
26 Correct 81 ms 125636 KB Output is correct
27 Correct 75 ms 125708 KB Output is correct
28 Correct 73 ms 125712 KB Output is correct
29 Correct 76 ms 125832 KB Output is correct
30 Correct 71 ms 125672 KB Output is correct
31 Correct 82 ms 125740 KB Output is correct
32 Correct 75 ms 125764 KB Output is correct
33 Correct 79 ms 125508 KB Output is correct
34 Correct 77 ms 125556 KB Output is correct
35 Correct 82 ms 125544 KB Output is correct
36 Correct 74 ms 125740 KB Output is correct
37 Correct 72 ms 125536 KB Output is correct
38 Correct 69 ms 125508 KB Output is correct
39 Correct 76 ms 125668 KB Output is correct
40 Correct 75 ms 125584 KB Output is correct
41 Correct 74 ms 125764 KB Output is correct
42 Correct 72 ms 125764 KB Output is correct
43 Correct 75 ms 125636 KB Output is correct
44 Correct 72 ms 125792 KB Output is correct
45 Correct 217 ms 135852 KB Output is correct
46 Correct 194 ms 135808 KB Output is correct
47 Correct 175 ms 135836 KB Output is correct
48 Correct 185 ms 135832 KB Output is correct
49 Correct 180 ms 135984 KB Output is correct
50 Correct 157 ms 132972 KB Output is correct
51 Correct 132 ms 128356 KB Output is correct
52 Correct 121 ms 129476 KB Output is correct
53 Correct 169 ms 137360 KB Output is correct
54 Correct 114 ms 126288 KB Output is correct
55 Correct 103 ms 126356 KB Output is correct
56 Correct 102 ms 126256 KB Output is correct
57 Correct 126 ms 132624 KB Output is correct
58 Correct 122 ms 132548 KB Output is correct
59 Correct 169 ms 134552 KB Output is correct
60 Correct 167 ms 134980 KB Output is correct
61 Correct 177 ms 135320 KB Output is correct
62 Correct 121 ms 128436 KB Output is correct
63 Correct 182 ms 132008 KB Output is correct
64 Correct 165 ms 133224 KB Output is correct
65 Correct 104 ms 126320 KB Output is correct
66 Correct 112 ms 126464 KB Output is correct
67 Correct 250 ms 138884 KB Output is correct
68 Correct 205 ms 138988 KB Output is correct
69 Correct 204 ms 139172 KB Output is correct
70 Correct 228 ms 139040 KB Output is correct
71 Correct 171 ms 137668 KB Output is correct
72 Correct 167 ms 137708 KB Output is correct
73 Correct 178 ms 137740 KB Output is correct
74 Correct 172 ms 137856 KB Output is correct
75 Correct 134 ms 135660 KB Output is correct
76 Correct 124 ms 132128 KB Output is correct
77 Correct 129 ms 132160 KB Output is correct
78 Correct 176 ms 135860 KB Output is correct
79 Correct 176 ms 135916 KB Output is correct
80 Correct 1251 ms 234940 KB Output is correct
81 Correct 1313 ms 234832 KB Output is correct
82 Correct 1301 ms 235876 KB Output is correct
83 Correct 1357 ms 234776 KB Output is correct
84 Correct 1302 ms 234912 KB Output is correct
85 Correct 774 ms 171512 KB Output is correct
86 Correct 588 ms 148752 KB Output is correct
87 Correct 590 ms 164676 KB Output is correct
88 Correct 1138 ms 256712 KB Output is correct
89 Correct 405 ms 133316 KB Output is correct
90 Correct 414 ms 133316 KB Output is correct
91 Correct 418 ms 133380 KB Output is correct
92 Correct 652 ms 195976 KB Output is correct
93 Correct 691 ms 195972 KB Output is correct
94 Correct 1069 ms 221944 KB Output is correct
95 Correct 1214 ms 226072 KB Output is correct
96 Correct 1233 ms 227744 KB Output is correct
97 Correct 545 ms 157176 KB Output is correct
98 Correct 510 ms 153412 KB Output is correct
99 Correct 649 ms 160580 KB Output is correct
100 Correct 397 ms 133316 KB Output is correct
101 Correct 428 ms 147960 KB Output is correct
102 Correct 1755 ms 287868 KB Output is correct
103 Correct 1721 ms 287932 KB Output is correct
104 Correct 1626 ms 287976 KB Output is correct
105 Correct 1727 ms 288008 KB Output is correct
106 Correct 1197 ms 275024 KB Output is correct
107 Correct 1253 ms 275116 KB Output is correct
108 Correct 1191 ms 275236 KB Output is correct
109 Correct 1212 ms 275200 KB Output is correct
110 Correct 680 ms 241796 KB Output is correct
111 Correct 675 ms 206616 KB Output is correct
112 Correct 675 ms 206640 KB Output is correct
113 Correct 1244 ms 250204 KB Output is correct
114 Correct 1287 ms 249184 KB Output is correct