oj.uz

Submission #772064

# Submission time Handle Problem Language Result Execution time Memory
772064 2023-07-03T15:09:26 Z Ahmed57 Port Facility (JOI17_port_facility) C++17
100 / 100
 1249 ms 76748 KB 
#include <bits/stdc++.h>
using namespace std;
//DSU
int pr[2000001];
int gs[2000001];

int findleader(int x){
    if(pr[x]==x){
        return x;
    }
    return pr[x] = findleader(pr[x]);
}
bool samegroup(int x,int y){
    int led1 = findleader(x);
    int led2 = findleader(y);
    return led1==led2;
}
void mergegroup(int x,int y){
    int led1 = findleader(x);
    int led2 = findleader(y);
    if(led1==led2)return;
    if(gs[led1]>gs[led2]){
        pr[led2]=led1;
        gs[led1]+=gs[led2];
    }else{
        pr[led1]=led2;
        gs[led2]+=gs[led1];
    }
}
signed main(){
    int n;cin>>n;
    for(int i = 0;i<=2*n;i++)pr[i] = i , gs[i] = 1;
    vector<pair<int,int>> v(n);
    for(int i = 0;i<n;i++){
        cin>>v[i].first>>v[i].second;
    }
    sort(v.begin(),v.end());
    map<int,int> s;
    for(int i = 0;i<v.size();i++){
        auto it = s.lower_bound(v[i].first) , it2 = s.lower_bound(v[i].second);
        if(it!=it2&&it2!=s.begin()){
            it2--;
            while(it!=s.end()){
                mergegroup(i+n,it->second);
                mergegroup(i,it->second+n);
                if(it==it2||samegroup(it2->second,it->second))break;
                it++;
            }
        }
        s[v[i].second] = i;
    }
    long long ans = 1 , mod = 1000000007;
    for(int i = 0;i<n;i++){
        if(samegroup(i,i+n))ans = 0;
        if(findleader(i)==i||findleader(i)==i+n)ans=(ans*2)%mod;
    }
    cout<<ans<<endl;
    return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:39:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for(int i = 0;i<v.size();i++){
      |                   ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 308 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 308 KB Output is correct
17 Correct 0 ms 308 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 308 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 308 KB Output is correct
17 Correct 0 ms 308 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 2 ms 468 KB Output is correct
30 Correct 3 ms 468 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 2 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 452 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 308 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 308 KB Output is correct
17 Correct 0 ms 308 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 2 ms 468 KB Output is correct
30 Correct 3 ms 468 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 2 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 452 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 81 ms 8520 KB Output is correct
46 Correct 79 ms 8552 KB Output is correct
47 Correct 77 ms 8548 KB Output is correct
48 Correct 90 ms 8528 KB Output is correct
49 Correct 76 ms 8524 KB Output is correct
50 Correct 94 ms 8496 KB Output is correct
51 Correct 76 ms 8528 KB Output is correct
52 Correct 80 ms 8524 KB Output is correct
53 Correct 75 ms 8544 KB Output is correct
54 Correct 77 ms 8512 KB Output is correct
55 Correct 73 ms 8544 KB Output is correct
56 Correct 72 ms 8524 KB Output is correct
57 Correct 76 ms 8524 KB Output is correct
58 Correct 74 ms 8524 KB Output is correct
59 Correct 76 ms 8524 KB Output is correct
60 Correct 76 ms 8536 KB Output is correct
61 Correct 79 ms 8536 KB Output is correct
62 Correct 87 ms 8600 KB Output is correct
63 Correct 75 ms 8540 KB Output is correct
64 Correct 78 ms 8664 KB Output is correct
65 Correct 87 ms 8584 KB Output is correct
66 Correct 88 ms 8512 KB Output is correct
67 Correct 79 ms 8544 KB Output is correct
68 Correct 79 ms 8536 KB Output is correct
69 Correct 78 ms 8520 KB Output is correct
70 Correct 85 ms 8704 KB Output is correct
71 Correct 79 ms 8612 KB Output is correct
72 Correct 76 ms 8588 KB Output is correct
73 Correct 77 ms 8496 KB Output is correct
74 Correct 78 ms 8560 KB Output is correct
75 Correct 77 ms 8532 KB Output is correct
76 Correct 83 ms 8528 KB Output is correct
77 Correct 76 ms 8524 KB Output is correct
78 Correct 76 ms 8540 KB Output is correct
79 Correct 78 ms 8544 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 0 ms 212 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 0 ms 212 KB Output is correct
11 Correct 0 ms 308 KB Output is correct
12 Correct 1 ms 212 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 0 ms 308 KB Output is correct
17 Correct 0 ms 308 KB Output is correct
18 Correct 0 ms 300 KB Output is correct
19 Correct 0 ms 212 KB Output is correct
20 Correct 1 ms 212 KB Output is correct
21 Correct 0 ms 212 KB Output is correct
22 Correct 0 ms 212 KB Output is correct
23 Correct 0 ms 212 KB Output is correct
24 Correct 1 ms 212 KB Output is correct
25 Correct 2 ms 468 KB Output is correct
26 Correct 2 ms 468 KB Output is correct
27 Correct 2 ms 468 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 2 ms 468 KB Output is correct
30 Correct 3 ms 468 KB Output is correct
31 Correct 2 ms 468 KB Output is correct
32 Correct 2 ms 376 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 1 ms 468 KB Output is correct
36 Correct 1 ms 468 KB Output is correct
37 Correct 2 ms 468 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 1 ms 468 KB Output is correct
40 Correct 1 ms 452 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 2 ms 468 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 81 ms 8520 KB Output is correct
46 Correct 79 ms 8552 KB Output is correct
47 Correct 77 ms 8548 KB Output is correct
48 Correct 90 ms 8528 KB Output is correct
49 Correct 76 ms 8524 KB Output is correct
50 Correct 94 ms 8496 KB Output is correct
51 Correct 76 ms 8528 KB Output is correct
52 Correct 80 ms 8524 KB Output is correct
53 Correct 75 ms 8544 KB Output is correct
54 Correct 77 ms 8512 KB Output is correct
55 Correct 73 ms 8544 KB Output is correct
56 Correct 72 ms 8524 KB Output is correct
57 Correct 76 ms 8524 KB Output is correct
58 Correct 74 ms 8524 KB Output is correct
59 Correct 76 ms 8524 KB Output is correct
60 Correct 76 ms 8536 KB Output is correct
61 Correct 79 ms 8536 KB Output is correct
62 Correct 87 ms 8600 KB Output is correct
63 Correct 75 ms 8540 KB Output is correct
64 Correct 78 ms 8664 KB Output is correct
65 Correct 87 ms 8584 KB Output is correct
66 Correct 88 ms 8512 KB Output is correct
67 Correct 79 ms 8544 KB Output is correct
68 Correct 79 ms 8536 KB Output is correct
69 Correct 78 ms 8520 KB Output is correct
70 Correct 85 ms 8704 KB Output is correct
71 Correct 79 ms 8612 KB Output is correct
72 Correct 76 ms 8588 KB Output is correct
73 Correct 77 ms 8496 KB Output is correct
74 Correct 78 ms 8560 KB Output is correct
75 Correct 77 ms 8532 KB Output is correct
76 Correct 83 ms 8528 KB Output is correct
77 Correct 76 ms 8524 KB Output is correct
78 Correct 76 ms 8540 KB Output is correct
79 Correct 78 ms 8544 KB Output is correct
80 Correct 850 ms 76540 KB Output is correct
81 Correct 853 ms 76724 KB Output is correct
82 Correct 850 ms 76716 KB Output is correct
83 Correct 860 ms 76596 KB Output is correct
84 Correct 845 ms 76536 KB Output is correct
85 Correct 840 ms 76616 KB Output is correct
86 Correct 847 ms 76528 KB Output is correct
87 Correct 888 ms 76748 KB Output is correct
88 Correct 900 ms 76560 KB Output is correct
89 Correct 865 ms 76604 KB Output is correct
90 Correct 861 ms 76640 KB Output is correct
91 Correct 854 ms 76620 KB Output is correct
92 Correct 890 ms 76684 KB Output is correct
93 Correct 880 ms 76616 KB Output is correct
94 Correct 832 ms 76644 KB Output is correct
95 Correct 840 ms 76552 KB Output is correct
96 Correct 844 ms 76644 KB Output is correct
97 Correct 811 ms 76620 KB Output is correct
98 Correct 839 ms 76564 KB Output is correct
99 Correct 824 ms 76560 KB Output is correct
100 Correct 1249 ms 76700 KB Output is correct
101 Correct 1242 ms 76620 KB Output is correct
102 Correct 952 ms 76564 KB Output is correct
103 Correct 935 ms 76712 KB Output is correct
104 Correct 938 ms 76568 KB Output is correct
105 Correct 943 ms 76680 KB Output is correct
106 Correct 927 ms 76636 KB Output is correct
107 Correct 960 ms 76524 KB Output is correct
108 Correct 947 ms 76560 KB Output is correct
109 Correct 990 ms 76668 KB Output is correct
110 Correct 1020 ms 76728 KB Output is correct
111 Correct 1190 ms 76644 KB Output is correct
112 Correct 1062 ms 76560 KB Output is correct
113 Correct 860 ms 76616 KB Output is correct
114 Correct 848 ms 76592 KB Output is correct