oj.uz

Submission #210442

# Submission time Handle Problem Language Result Execution time Memory
210442 2020-03-17T11:22:31 Z dolphingarlic Port Facility (JOI17_port_facility) C++14
100 / 100
 1515 ms 77560 KB 
#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
typedef long long ll;
using namespace std;

const ll MOD = 1e9 + 7;

pair<int, int> a[1000000];
int cmp[2000000], n;

int find(int A) {
    while (A != cmp[A]) cmp[A] = cmp[cmp[A]], A = cmp[A];
    return A;
}

bool onion(int A, int B) { cmp[find(A)] = find(B); }

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n;
    FOR(i, 0, n) cin >> a[i].first >> a[i].second;
    sort(a, a + n);

    iota(cmp, cmp + 2 * n, 0);

    set<pair<int, int>> s;
    FOR(i, 0, n) {
        while (s.size() && (*s.begin()).first < a[i].first) s.erase(s.begin());

        auto ub = s.upper_bound({a[i].second, n});
        if (ub != s.begin())
            for (ub--;; ub--) {
                onion(i, (*ub).second + n);
                onion(i + n, (*ub).second);
                if (find((*ub).second) == find((*s.begin()).second)) break;
                if (ub == s.begin()) break;
            }
        s.insert({a[i].second, i});
    }

    FOR(i, 0, n) if (find(i) == find(i + n)) return cout << 0, 0;
    ll cnt = 0, ans = 1;
    FOR(i, 0, 2 * n) if (find(i) == i) cnt++;
    FOR(i, 0, cnt / 2) ans = (ans * 2) % MOD;
    cout << ans;
    return 0;
}

Compilation message

port_facility.cpp: In function 'bool onion(int, int)':
port_facility.cpp:16:52: warning: no return statement in function returning non-void [-Wreturn-type]
 bool onion(int A, int B) { cmp[find(A)] = find(B); }
                                                    ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 248 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 380 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 248 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 380 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 6 ms 504 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 504 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 504 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 6 ms 380 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 6 ms 504 KB Output is correct
37 Correct 5 ms 504 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 6 ms 504 KB Output is correct
42 Correct 6 ms 504 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 248 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 380 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 6 ms 504 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 504 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 504 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 6 ms 380 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 6 ms 504 KB Output is correct
37 Correct 5 ms 504 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 6 ms 504 KB Output is correct
42 Correct 6 ms 504 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 95 ms 5472 KB Output is correct
46 Correct 149 ms 5488 KB Output is correct
47 Correct 77 ms 5496 KB Output is correct
48 Correct 151 ms 5496 KB Output is correct
49 Correct 84 ms 5496 KB Output is correct
50 Correct 143 ms 5496 KB Output is correct
51 Correct 91 ms 5500 KB Output is correct
52 Correct 43 ms 3152 KB Output is correct
53 Correct 67 ms 7928 KB Output is correct
54 Correct 72 ms 7928 KB Output is correct
55 Correct 69 ms 5496 KB Output is correct
56 Correct 70 ms 5496 KB Output is correct
57 Correct 42 ms 3192 KB Output is correct
58 Correct 43 ms 3192 KB Output is correct
59 Correct 58 ms 4728 KB Output is correct
60 Correct 60 ms 4784 KB Output is correct
61 Correct 60 ms 4716 KB Output is correct
62 Correct 51 ms 4728 KB Output is correct
63 Correct 56 ms 4728 KB Output is correct
64 Correct 60 ms 4728 KB Output is correct
65 Correct 84 ms 5476 KB Output is correct
66 Correct 83 ms 5496 KB Output is correct
67 Correct 68 ms 5516 KB Output is correct
68 Correct 66 ms 5496 KB Output is correct
69 Correct 68 ms 6264 KB Output is correct
70 Correct 69 ms 6264 KB Output is correct
71 Correct 71 ms 7800 KB Output is correct
72 Correct 69 ms 7928 KB Output is correct
73 Correct 68 ms 7800 KB Output is correct
74 Correct 69 ms 7928 KB Output is correct
75 Correct 43 ms 3192 KB Output is correct
76 Correct 47 ms 3196 KB Output is correct
77 Correct 45 ms 3192 KB Output is correct
78 Correct 143 ms 5496 KB Output is correct
79 Correct 99 ms 5496 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 376 KB Output is correct
2 Correct 5 ms 376 KB Output is correct
3 Correct 5 ms 376 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 5 ms 248 KB Output is correct
6 Correct 5 ms 376 KB Output is correct
7 Correct 5 ms 380 KB Output is correct
8 Correct 5 ms 376 KB Output is correct
9 Correct 5 ms 376 KB Output is correct
10 Correct 5 ms 376 KB Output is correct
11 Correct 5 ms 376 KB Output is correct
12 Correct 5 ms 376 KB Output is correct
13 Correct 5 ms 376 KB Output is correct
14 Correct 5 ms 376 KB Output is correct
15 Correct 5 ms 376 KB Output is correct
16 Correct 5 ms 376 KB Output is correct
17 Correct 5 ms 376 KB Output is correct
18 Correct 5 ms 376 KB Output is correct
19 Correct 5 ms 376 KB Output is correct
20 Correct 5 ms 380 KB Output is correct
21 Correct 5 ms 376 KB Output is correct
22 Correct 5 ms 376 KB Output is correct
23 Correct 5 ms 376 KB Output is correct
24 Correct 5 ms 376 KB Output is correct
25 Correct 6 ms 376 KB Output is correct
26 Correct 6 ms 504 KB Output is correct
27 Correct 6 ms 376 KB Output is correct
28 Correct 6 ms 504 KB Output is correct
29 Correct 6 ms 376 KB Output is correct
30 Correct 6 ms 504 KB Output is correct
31 Correct 6 ms 376 KB Output is correct
32 Correct 6 ms 380 KB Output is correct
33 Correct 6 ms 376 KB Output is correct
34 Correct 6 ms 376 KB Output is correct
35 Correct 5 ms 376 KB Output is correct
36 Correct 6 ms 504 KB Output is correct
37 Correct 5 ms 504 KB Output is correct
38 Correct 6 ms 376 KB Output is correct
39 Correct 5 ms 376 KB Output is correct
40 Correct 5 ms 376 KB Output is correct
41 Correct 6 ms 504 KB Output is correct
42 Correct 6 ms 504 KB Output is correct
43 Correct 5 ms 376 KB Output is correct
44 Correct 5 ms 376 KB Output is correct
45 Correct 95 ms 5472 KB Output is correct
46 Correct 149 ms 5488 KB Output is correct
47 Correct 77 ms 5496 KB Output is correct
48 Correct 151 ms 5496 KB Output is correct
49 Correct 84 ms 5496 KB Output is correct
50 Correct 143 ms 5496 KB Output is correct
51 Correct 91 ms 5500 KB Output is correct
52 Correct 43 ms 3152 KB Output is correct
53 Correct 67 ms 7928 KB Output is correct
54 Correct 72 ms 7928 KB Output is correct
55 Correct 69 ms 5496 KB Output is correct
56 Correct 70 ms 5496 KB Output is correct
57 Correct 42 ms 3192 KB Output is correct
58 Correct 43 ms 3192 KB Output is correct
59 Correct 58 ms 4728 KB Output is correct
60 Correct 60 ms 4784 KB Output is correct
61 Correct 60 ms 4716 KB Output is correct
62 Correct 51 ms 4728 KB Output is correct
63 Correct 56 ms 4728 KB Output is correct
64 Correct 60 ms 4728 KB Output is correct
65 Correct 84 ms 5476 KB Output is correct
66 Correct 83 ms 5496 KB Output is correct
67 Correct 68 ms 5516 KB Output is correct
68 Correct 66 ms 5496 KB Output is correct
69 Correct 68 ms 6264 KB Output is correct
70 Correct 69 ms 6264 KB Output is correct
71 Correct 71 ms 7800 KB Output is correct
72 Correct 69 ms 7928 KB Output is correct
73 Correct 68 ms 7800 KB Output is correct
74 Correct 69 ms 7928 KB Output is correct
75 Correct 43 ms 3192 KB Output is correct
76 Correct 47 ms 3196 KB Output is correct
77 Correct 45 ms 3192 KB Output is correct
78 Correct 143 ms 5496 KB Output is correct
79 Correct 99 ms 5496 KB Output is correct
80 Correct 1293 ms 54076 KB Output is correct
81 Correct 1396 ms 54008 KB Output is correct
82 Correct 798 ms 54008 KB Output is correct
83 Correct 1375 ms 54072 KB Output is correct
84 Correct 1423 ms 54092 KB Output is correct
85 Correct 899 ms 54008 KB Output is correct
86 Correct 1333 ms 54008 KB Output is correct
87 Correct 422 ms 30456 KB Output is correct
88 Correct 765 ms 77432 KB Output is correct
89 Correct 800 ms 77536 KB Output is correct
90 Correct 756 ms 53972 KB Output is correct
91 Correct 776 ms 53988 KB Output is correct
92 Correct 412 ms 30460 KB Output is correct
93 Correct 408 ms 30456 KB Output is correct
94 Correct 542 ms 46176 KB Output is correct
95 Correct 584 ms 46332 KB Output is correct
96 Correct 667 ms 46328 KB Output is correct
97 Correct 525 ms 46200 KB Output is correct
98 Correct 565 ms 46200 KB Output is correct
99 Correct 625 ms 46072 KB Output is correct
100 Correct 1515 ms 54136 KB Output is correct
101 Correct 1500 ms 54068 KB Output is correct
102 Correct 770 ms 54008 KB Output is correct
103 Correct 738 ms 54008 KB Output is correct
104 Correct 758 ms 61816 KB Output is correct
105 Correct 747 ms 62012 KB Output is correct
106 Correct 805 ms 77432 KB Output is correct
107 Correct 795 ms 77560 KB Output is correct
108 Correct 823 ms 77432 KB Output is correct
109 Correct 816 ms 77528 KB Output is correct
110 Correct 413 ms 30456 KB Output is correct
111 Correct 453 ms 30584 KB Output is correct
112 Correct 439 ms 30456 KB Output is correct
113 Correct 845 ms 54008 KB Output is correct
114 Correct 1404 ms 54004 KB Output is correct