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Submission #622382

# Submission time Handle Problem Language Result Execution time Memory
622382 2022-08-04T08:31:52 Z Hanksburger Port Facility (JOI17_port_facility) C++17
100 / 100
 1697 ms 89308 KB 
#include <bits/stdc++.h>
using namespace std;
const int mod=1e9+7;
pair<int, int> a[1000005];
set<pair<int, int> > s;
int p[2000005];
int f(int x)
{
    return p[x]==x?x:(p[x]=f(p[x]));
}
int main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n, ans=1;
    cin >> n;
    for (int i=1; i<=n; i++)
        cin >> a[i].first >> a[i].second;
    sort(a+1, a+n+1);
    for (int i=1; i<=n*2; i++)
        p[i]=i;
    for (int i=1; i<=n; i++)
    {
        auto itr1=s.lower_bound({a[i].first, 0}), itr2=s.lower_bound({a[i].second, 0});
        for (auto itr=itr1; itr!=itr2; itr++)
        {
            p[f(itr->second+n)]=f(i);
            p[f(itr->second)]=f(i+n);
            if (f(itr->second)==f(prev(itr2)->second))
                break;
        }
        s.insert({a[i].second, i});
    }
    for (int i=1; i<=n; i++)
    {
        if (f(i)==f(i+n))
        {
            cout << 0;
            return 0;
        }
    }
    for (int i=1; i<=n; i++)
        if (f(i)==i)
            ans=ans*2%mod;
    cout << ans;
    return 0;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 336 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 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 340 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 336 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 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 1 ms 476 KB Output is correct
27 Correct 2 ms 472 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 2 ms 488 KB Output is correct
31 Correct 2 ms 472 KB Output is correct
32 Correct 3 ms 468 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 476 KB Output is correct
36 Correct 2 ms 476 KB Output is correct
37 Correct 1 ms 480 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 340 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 340 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 336 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 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 1 ms 476 KB Output is correct
27 Correct 2 ms 472 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 2 ms 488 KB Output is correct
31 Correct 2 ms 472 KB Output is correct
32 Correct 3 ms 468 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 476 KB Output is correct
36 Correct 2 ms 476 KB Output is correct
37 Correct 1 ms 480 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 65 ms 7792 KB Output is correct
46 Correct 71 ms 7756 KB Output is correct
47 Correct 61 ms 7816 KB Output is correct
48 Correct 63 ms 7832 KB Output is correct
49 Correct 67 ms 7864 KB Output is correct
50 Correct 62 ms 7756 KB Output is correct
51 Correct 68 ms 7756 KB Output is correct
52 Correct 71 ms 7832 KB Output is correct
53 Correct 62 ms 7756 KB Output is correct
54 Correct 61 ms 7820 KB Output is correct
55 Correct 59 ms 7812 KB Output is correct
56 Correct 58 ms 7748 KB Output is correct
57 Correct 88 ms 7760 KB Output is correct
58 Correct 77 ms 7776 KB Output is correct
59 Correct 56 ms 7804 KB Output is correct
60 Correct 57 ms 7832 KB Output is correct
61 Correct 60 ms 7728 KB Output is correct
62 Correct 56 ms 8152 KB Output is correct
63 Correct 68 ms 7928 KB Output is correct
64 Correct 74 ms 7844 KB Output is correct
65 Correct 88 ms 7736 KB Output is correct
66 Correct 81 ms 7840 KB Output is correct
67 Correct 77 ms 7844 KB Output is correct
68 Correct 76 ms 7736 KB Output is correct
69 Correct 68 ms 7756 KB Output is correct
70 Correct 77 ms 7744 KB Output is correct
71 Correct 80 ms 8336 KB Output is correct
72 Correct 69 ms 8344 KB Output is correct
73 Correct 71 ms 8560 KB Output is correct
74 Correct 73 ms 8516 KB Output is correct
75 Correct 66 ms 8888 KB Output is correct
76 Correct 67 ms 9120 KB Output is correct
77 Correct 75 ms 8908 KB Output is correct
78 Correct 77 ms 7736 KB Output is correct
79 Correct 97 ms 7788 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 336 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 0 ms 340 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 0 ms 212 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 336 KB Output is correct
12 Correct 0 ms 212 KB Output is correct
13 Correct 1 ms 336 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 336 KB Output is correct
16 Correct 1 ms 212 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 1 ms 340 KB Output is correct
21 Correct 1 ms 340 KB Output is correct
22 Correct 1 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 1 ms 476 KB Output is correct
27 Correct 2 ms 472 KB Output is correct
28 Correct 2 ms 468 KB Output is correct
29 Correct 1 ms 468 KB Output is correct
30 Correct 2 ms 488 KB Output is correct
31 Correct 2 ms 472 KB Output is correct
32 Correct 3 ms 468 KB Output is correct
33 Correct 2 ms 468 KB Output is correct
34 Correct 2 ms 468 KB Output is correct
35 Correct 2 ms 476 KB Output is correct
36 Correct 2 ms 476 KB Output is correct
37 Correct 1 ms 480 KB Output is correct
38 Correct 2 ms 468 KB Output is correct
39 Correct 2 ms 468 KB Output is correct
40 Correct 1 ms 468 KB Output is correct
41 Correct 1 ms 468 KB Output is correct
42 Correct 1 ms 340 KB Output is correct
43 Correct 2 ms 468 KB Output is correct
44 Correct 1 ms 468 KB Output is correct
45 Correct 65 ms 7792 KB Output is correct
46 Correct 71 ms 7756 KB Output is correct
47 Correct 61 ms 7816 KB Output is correct
48 Correct 63 ms 7832 KB Output is correct
49 Correct 67 ms 7864 KB Output is correct
50 Correct 62 ms 7756 KB Output is correct
51 Correct 68 ms 7756 KB Output is correct
52 Correct 71 ms 7832 KB Output is correct
53 Correct 62 ms 7756 KB Output is correct
54 Correct 61 ms 7820 KB Output is correct
55 Correct 59 ms 7812 KB Output is correct
56 Correct 58 ms 7748 KB Output is correct
57 Correct 88 ms 7760 KB Output is correct
58 Correct 77 ms 7776 KB Output is correct
59 Correct 56 ms 7804 KB Output is correct
60 Correct 57 ms 7832 KB Output is correct
61 Correct 60 ms 7728 KB Output is correct
62 Correct 56 ms 8152 KB Output is correct
63 Correct 68 ms 7928 KB Output is correct
64 Correct 74 ms 7844 KB Output is correct
65 Correct 88 ms 7736 KB Output is correct
66 Correct 81 ms 7840 KB Output is correct
67 Correct 77 ms 7844 KB Output is correct
68 Correct 76 ms 7736 KB Output is correct
69 Correct 68 ms 7756 KB Output is correct
70 Correct 77 ms 7744 KB Output is correct
71 Correct 80 ms 8336 KB Output is correct
72 Correct 69 ms 8344 KB Output is correct
73 Correct 71 ms 8560 KB Output is correct
74 Correct 73 ms 8516 KB Output is correct
75 Correct 66 ms 8888 KB Output is correct
76 Correct 67 ms 9120 KB Output is correct
77 Correct 75 ms 8908 KB Output is correct
78 Correct 77 ms 7736 KB Output is correct
79 Correct 97 ms 7788 KB Output is correct
80 Correct 804 ms 72288 KB Output is correct
81 Correct 718 ms 76936 KB Output is correct
82 Correct 801 ms 77384 KB Output is correct
83 Correct 753 ms 77408 KB Output is correct
84 Correct 745 ms 77444 KB Output is correct
85 Correct 671 ms 77444 KB Output is correct
86 Correct 666 ms 77492 KB Output is correct
87 Correct 741 ms 77556 KB Output is correct
88 Correct 726 ms 77396 KB Output is correct
89 Correct 710 ms 77388 KB Output is correct
90 Correct 694 ms 77404 KB Output is correct
91 Correct 713 ms 77440 KB Output is correct
92 Correct 747 ms 77456 KB Output is correct
93 Correct 746 ms 77424 KB Output is correct
94 Correct 610 ms 77504 KB Output is correct
95 Correct 657 ms 77488 KB Output is correct
96 Correct 682 ms 77384 KB Output is correct
97 Correct 578 ms 79332 KB Output is correct
98 Correct 608 ms 78164 KB Output is correct
99 Correct 658 ms 77972 KB Output is correct
100 Correct 1593 ms 77408 KB Output is correct
101 Correct 1697 ms 77576 KB Output is correct
102 Correct 865 ms 77436 KB Output is correct
103 Correct 832 ms 77464 KB Output is correct
104 Correct 866 ms 77400 KB Output is correct
105 Correct 920 ms 77360 KB Output is correct
106 Correct 885 ms 83224 KB Output is correct
107 Correct 947 ms 83320 KB Output is correct
108 Correct 956 ms 85208 KB Output is correct
109 Correct 893 ms 85260 KB Output is correct
110 Correct 779 ms 89120 KB Output is correct
111 Correct 845 ms 89308 KB Output is correct
112 Correct 861 ms 88852 KB Output is correct
113 Correct 705 ms 77208 KB Output is correct
114 Correct 739 ms 77432 KB Output is correct