oj.uz

Submission #244404

# Submission time Handle Problem Language Result Execution time Memory
244404 2020-07-03T21:16:30 Z Osama_Alkhodairy Port Facility (JOI17_port_facility) C++17
100 / 100
 1498 ms 76724 KB 
#include <bits/stdc++.h>
using namespace std;
#define finish(x) return cout << x << endl, 0
#define ll long long

const int N = 1000001;

int n, p[2 * N], mod = 1e9 + 7;
vector <pair <int, int> > a;

int find(int x){
    if(p[x] == x) return x;
    return p[x] = find(p[x]);
}
void merge(int x, int y){
    x = find(x);
    y = find(y);
    p[x] = y;
}
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    a.resize(n);
    for(auto &i : a){
        cin >> i.first >> i.second;
        i.first--; i.second--;
    }
    sort(a.begin(), a.end());
    for(int i = 0 ; i < 2 * n ; i++){
        p[i] = i;
    }
    map <int, int> mp;
    for(int i = 0 ; i < n ; i++){
        auto from = mp.lower_bound(a[i].first), to = mp.upper_bound(a[i].second);
        if(from != to && to != mp.begin()){
            to--;
            while(from != mp.end()){
                merge(i, from->second + n);
                merge(i + n, from->second);
                if(to == from || find(from->second) == find(to->second)) break;
                from++;
            }
        }
        mp[a[i].second] = i;
    }
    int ans = 1;
    for(int i = 0 ; i < n ; i++){
        if(find(i) == find(i + n)){
            finish(0);
        }
        if(find(i) == i){
            ans *= 2;
            if(ans >= mod) ans -= mod;
        }
    }
    cout << ans << endl;
}

Subtask #1
10.0 / 10.0

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

Subtask #2
12.0 / 12.0

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

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 6 ms 512 KB Output is correct
27 Correct 6 ms 512 KB Output is correct
28 Correct 6 ms 512 KB Output is correct
29 Correct 6 ms 512 KB Output is correct
30 Correct 6 ms 512 KB Output is correct
31 Correct 6 ms 512 KB Output is correct
32 Correct 6 ms 432 KB Output is correct
33 Correct 6 ms 512 KB Output is correct
34 Correct 7 ms 512 KB Output is correct
35 Correct 6 ms 512 KB Output is correct
36 Correct 5 ms 512 KB Output is correct
37 Correct 5 ms 512 KB Output is correct
38 Correct 6 ms 512 KB Output is correct
39 Correct 6 ms 512 KB Output is correct
40 Correct 5 ms 512 KB Output is correct
41 Correct 5 ms 512 KB Output is correct
42 Correct 5 ms 512 KB Output is correct
43 Correct 6 ms 512 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 78 ms 6776 KB Output is correct
46 Correct 76 ms 6648 KB Output is correct
47 Correct 77 ms 6864 KB Output is correct
48 Correct 75 ms 6776 KB Output is correct
49 Correct 76 ms 6648 KB Output is correct
50 Correct 75 ms 6648 KB Output is correct
51 Correct 73 ms 6652 KB Output is correct
52 Correct 80 ms 6652 KB Output is correct
53 Correct 79 ms 6648 KB Output is correct
54 Correct 69 ms 6648 KB Output is correct
55 Correct 69 ms 6776 KB Output is correct
56 Correct 74 ms 6648 KB Output is correct
57 Correct 78 ms 6648 KB Output is correct
58 Correct 75 ms 6664 KB Output is correct
59 Correct 72 ms 6776 KB Output is correct
60 Correct 74 ms 6648 KB Output is correct
61 Correct 80 ms 6816 KB Output is correct
62 Correct 65 ms 6776 KB Output is correct
63 Correct 71 ms 6652 KB Output is correct
64 Correct 75 ms 6776 KB Output is correct
65 Correct 90 ms 6648 KB Output is correct
66 Correct 89 ms 6776 KB Output is correct
67 Correct 86 ms 7544 KB Output is correct
68 Correct 80 ms 8696 KB Output is correct
69 Correct 82 ms 8440 KB Output is correct
70 Correct 81 ms 8352 KB Output is correct
71 Correct 81 ms 8672 KB Output is correct
72 Correct 86 ms 8696 KB Output is correct
73 Correct 85 ms 8440 KB Output is correct
74 Correct 79 ms 8444 KB Output is correct
75 Correct 79 ms 7928 KB Output is correct
76 Correct 79 ms 7928 KB Output is correct
77 Correct 78 ms 7928 KB Output is correct
78 Correct 76 ms 7928 KB Output is correct
79 Correct 77 ms 7932 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 5 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 5 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 4 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 4 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 6 ms 512 KB Output is correct
26 Correct 6 ms 512 KB Output is correct
27 Correct 6 ms 512 KB Output is correct
28 Correct 6 ms 512 KB Output is correct
29 Correct 6 ms 512 KB Output is correct
30 Correct 6 ms 512 KB Output is correct
31 Correct 6 ms 512 KB Output is correct
32 Correct 6 ms 432 KB Output is correct
33 Correct 6 ms 512 KB Output is correct
34 Correct 7 ms 512 KB Output is correct
35 Correct 6 ms 512 KB Output is correct
36 Correct 5 ms 512 KB Output is correct
37 Correct 5 ms 512 KB Output is correct
38 Correct 6 ms 512 KB Output is correct
39 Correct 6 ms 512 KB Output is correct
40 Correct 5 ms 512 KB Output is correct
41 Correct 5 ms 512 KB Output is correct
42 Correct 5 ms 512 KB Output is correct
43 Correct 6 ms 512 KB Output is correct
44 Correct 5 ms 384 KB Output is correct
45 Correct 78 ms 6776 KB Output is correct
46 Correct 76 ms 6648 KB Output is correct
47 Correct 77 ms 6864 KB Output is correct
48 Correct 75 ms 6776 KB Output is correct
49 Correct 76 ms 6648 KB Output is correct
50 Correct 75 ms 6648 KB Output is correct
51 Correct 73 ms 6652 KB Output is correct
52 Correct 80 ms 6652 KB Output is correct
53 Correct 79 ms 6648 KB Output is correct
54 Correct 69 ms 6648 KB Output is correct
55 Correct 69 ms 6776 KB Output is correct
56 Correct 74 ms 6648 KB Output is correct
57 Correct 78 ms 6648 KB Output is correct
58 Correct 75 ms 6664 KB Output is correct
59 Correct 72 ms 6776 KB Output is correct
60 Correct 74 ms 6648 KB Output is correct
61 Correct 80 ms 6816 KB Output is correct
62 Correct 65 ms 6776 KB Output is correct
63 Correct 71 ms 6652 KB Output is correct
64 Correct 75 ms 6776 KB Output is correct
65 Correct 90 ms 6648 KB Output is correct
66 Correct 89 ms 6776 KB Output is correct
67 Correct 86 ms 7544 KB Output is correct
68 Correct 80 ms 8696 KB Output is correct
69 Correct 82 ms 8440 KB Output is correct
70 Correct 81 ms 8352 KB Output is correct
71 Correct 81 ms 8672 KB Output is correct
72 Correct 86 ms 8696 KB Output is correct
73 Correct 85 ms 8440 KB Output is correct
74 Correct 79 ms 8444 KB Output is correct
75 Correct 79 ms 7928 KB Output is correct
76 Correct 79 ms 7928 KB Output is correct
77 Correct 78 ms 7928 KB Output is correct
78 Correct 76 ms 7928 KB Output is correct
79 Correct 77 ms 7932 KB Output is correct
80 Correct 802 ms 76536 KB Output is correct
81 Correct 806 ms 76684 KB Output is correct
82 Correct 793 ms 76388 KB Output is correct
83 Correct 797 ms 76536 KB Output is correct
84 Correct 805 ms 76464 KB Output is correct
85 Correct 788 ms 76476 KB Output is correct
86 Correct 762 ms 76472 KB Output is correct
87 Correct 896 ms 76408 KB Output is correct
88 Correct 912 ms 76724 KB Output is correct
89 Correct 842 ms 76024 KB Output is correct
90 Correct 844 ms 75832 KB Output is correct
91 Correct 821 ms 75800 KB Output is correct
92 Correct 909 ms 75944 KB Output is correct
93 Correct 889 ms 76060 KB Output is correct
94 Correct 771 ms 76060 KB Output is correct
95 Correct 828 ms 75940 KB Output is correct
96 Correct 789 ms 75836 KB Output is correct
97 Correct 735 ms 75936 KB Output is correct
98 Correct 783 ms 75736 KB Output is correct
99 Correct 775 ms 76024 KB Output is correct
100 Correct 1478 ms 74408 KB Output is correct
101 Correct 1498 ms 65912 KB Output is correct
102 Correct 948 ms 73728 KB Output is correct
103 Correct 963 ms 73848 KB Output is correct
104 Correct 950 ms 71192 KB Output is correct
105 Correct 945 ms 71160 KB Output is correct
106 Correct 970 ms 73848 KB Output is correct
107 Correct 974 ms 73744 KB Output is correct
108 Correct 977 ms 71160 KB Output is correct
109 Correct 945 ms 71252 KB Output is correct
110 Correct 901 ms 66088 KB Output is correct
111 Correct 899 ms 66092 KB Output is correct
112 Correct 892 ms 66168 KB Output is correct
113 Correct 855 ms 66144 KB Output is correct
114 Correct 780 ms 66168 KB Output is correct