oj.uz

Submission #135639

# Submission time Handle Problem Language Result Execution time Memory
135639 2019-07-24T09:13:30 Z PeppaPig Port Facility (JOI17_port_facility) C++14
100 / 100
 1839 ms 85524 KB 
#include <bits/stdc++.h>

#define long long long
#define pii pair<int, int>
#define x first
#define y second

using namespace std;

const int N = 1e6+5;
const int M = 1e9+7;

int par[N << 1];

int find(int x) { return par[x] = x == par[x] ? x : find(par[x]); }

int n;
vector<pii> vec;
map<int, int> mp;

int main() {
    iota(par, par + (N << 1), 0);

    scanf("%d", &n);
    for(int i = 1, x, y; i <= n; i++) {
        scanf("%d %d", &x, &y);
        vec.emplace_back(x, y);
    }
    sort(vec.begin(), vec.end());
    for(int i = 0; i < n; i++) {
        auto st = mp.lower_bound(vec[i].x), en = mp.upper_bound(vec[i].y);
        if(en != mp.begin()) for( ; st != en; st++) {
            par[find(i)] = find(st->y + n);
            par[find(i + n)] = find(st->y);
            if(find(st->y) == find(prev(en)->y)) break;
        }
        mp[vec[i].y] = i;
    }
    for(int i = 0; i < n; i++) if(find(i) == find(i + n)) return !printf("0\n");
    long ans = 1;
    for(int i = 0; i < n; i++) if(find(i) == i) ans = ans * 2 % M;
    printf("%lld\n", ans);

    return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:24:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &n);
     ~~~~~^~~~~~~~~~
port_facility.cpp:26:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d %d", &x, &y);
         ~~~~~^~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8184 KB Output is correct
2 Correct 9 ms 8184 KB Output is correct
3 Correct 9 ms 8316 KB Output is correct
4 Correct 9 ms 8184 KB Output is correct
5 Correct 9 ms 8140 KB Output is correct
6 Correct 9 ms 8188 KB Output is correct
7 Correct 9 ms 8184 KB Output is correct
8 Correct 9 ms 8184 KB Output is correct
9 Correct 9 ms 8184 KB Output is correct
10 Correct 9 ms 8184 KB Output is correct
11 Correct 9 ms 8184 KB Output is correct
12 Correct 9 ms 8184 KB Output is correct
13 Correct 9 ms 8184 KB Output is correct
14 Correct 9 ms 8184 KB Output is correct
15 Correct 9 ms 8184 KB Output is correct
16 Correct 9 ms 8184 KB Output is correct
17 Correct 9 ms 8184 KB Output is correct
18 Correct 11 ms 8184 KB Output is correct
19 Correct 9 ms 8184 KB Output is correct
20 Correct 9 ms 8184 KB Output is correct
21 Correct 9 ms 8184 KB Output is correct
22 Correct 9 ms 8184 KB Output is correct
23 Correct 9 ms 8184 KB Output is correct
24 Correct 9 ms 8184 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8184 KB Output is correct
2 Correct 9 ms 8184 KB Output is correct
3 Correct 9 ms 8316 KB Output is correct
4 Correct 9 ms 8184 KB Output is correct
5 Correct 9 ms 8140 KB Output is correct
6 Correct 9 ms 8188 KB Output is correct
7 Correct 9 ms 8184 KB Output is correct
8 Correct 9 ms 8184 KB Output is correct
9 Correct 9 ms 8184 KB Output is correct
10 Correct 9 ms 8184 KB Output is correct
11 Correct 9 ms 8184 KB Output is correct
12 Correct 9 ms 8184 KB Output is correct
13 Correct 9 ms 8184 KB Output is correct
14 Correct 9 ms 8184 KB Output is correct
15 Correct 9 ms 8184 KB Output is correct
16 Correct 9 ms 8184 KB Output is correct
17 Correct 9 ms 8184 KB Output is correct
18 Correct 11 ms 8184 KB Output is correct
19 Correct 9 ms 8184 KB Output is correct
20 Correct 9 ms 8184 KB Output is correct
21 Correct 9 ms 8184 KB Output is correct
22 Correct 9 ms 8184 KB Output is correct
23 Correct 9 ms 8184 KB Output is correct
24 Correct 9 ms 8184 KB Output is correct
25 Correct 10 ms 8312 KB Output is correct
26 Correct 10 ms 8312 KB Output is correct
27 Correct 10 ms 8312 KB Output is correct
28 Correct 10 ms 8312 KB Output is correct
29 Correct 10 ms 8312 KB Output is correct
30 Correct 10 ms 8312 KB Output is correct
31 Correct 11 ms 8312 KB Output is correct
32 Correct 10 ms 8312 KB Output is correct
33 Correct 10 ms 8312 KB Output is correct
34 Correct 10 ms 8312 KB Output is correct
35 Correct 10 ms 8312 KB Output is correct
36 Correct 10 ms 8312 KB Output is correct
37 Correct 10 ms 8316 KB Output is correct
38 Correct 10 ms 8312 KB Output is correct
39 Correct 10 ms 8312 KB Output is correct
40 Correct 10 ms 8360 KB Output is correct
41 Correct 10 ms 8312 KB Output is correct
42 Correct 10 ms 8312 KB Output is correct
43 Correct 10 ms 8312 KB Output is correct
44 Correct 10 ms 8312 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8184 KB Output is correct
2 Correct 9 ms 8184 KB Output is correct
3 Correct 9 ms 8316 KB Output is correct
4 Correct 9 ms 8184 KB Output is correct
5 Correct 9 ms 8140 KB Output is correct
6 Correct 9 ms 8188 KB Output is correct
7 Correct 9 ms 8184 KB Output is correct
8 Correct 9 ms 8184 KB Output is correct
9 Correct 9 ms 8184 KB Output is correct
10 Correct 9 ms 8184 KB Output is correct
11 Correct 9 ms 8184 KB Output is correct
12 Correct 9 ms 8184 KB Output is correct
13 Correct 9 ms 8184 KB Output is correct
14 Correct 9 ms 8184 KB Output is correct
15 Correct 9 ms 8184 KB Output is correct
16 Correct 9 ms 8184 KB Output is correct
17 Correct 9 ms 8184 KB Output is correct
18 Correct 11 ms 8184 KB Output is correct
19 Correct 9 ms 8184 KB Output is correct
20 Correct 9 ms 8184 KB Output is correct
21 Correct 9 ms 8184 KB Output is correct
22 Correct 9 ms 8184 KB Output is correct
23 Correct 9 ms 8184 KB Output is correct
24 Correct 9 ms 8184 KB Output is correct
25 Correct 10 ms 8312 KB Output is correct
26 Correct 10 ms 8312 KB Output is correct
27 Correct 10 ms 8312 KB Output is correct
28 Correct 10 ms 8312 KB Output is correct
29 Correct 10 ms 8312 KB Output is correct
30 Correct 10 ms 8312 KB Output is correct
31 Correct 11 ms 8312 KB Output is correct
32 Correct 10 ms 8312 KB Output is correct
33 Correct 10 ms 8312 KB Output is correct
34 Correct 10 ms 8312 KB Output is correct
35 Correct 10 ms 8312 KB Output is correct
36 Correct 10 ms 8312 KB Output is correct
37 Correct 10 ms 8316 KB Output is correct
38 Correct 10 ms 8312 KB Output is correct
39 Correct 10 ms 8312 KB Output is correct
40 Correct 10 ms 8360 KB Output is correct
41 Correct 10 ms 8312 KB Output is correct
42 Correct 10 ms 8312 KB Output is correct
43 Correct 10 ms 8312 KB Output is correct
44 Correct 10 ms 8312 KB Output is correct
45 Correct 96 ms 14932 KB Output is correct
46 Correct 106 ms 14852 KB Output is correct
47 Correct 106 ms 14824 KB Output is correct
48 Correct 95 ms 14956 KB Output is correct
49 Correct 95 ms 14956 KB Output is correct
50 Correct 92 ms 14824 KB Output is correct
51 Correct 91 ms 14824 KB Output is correct
52 Correct 103 ms 14852 KB Output is correct
53 Correct 102 ms 14828 KB Output is correct
54 Correct 93 ms 14956 KB Output is correct
55 Correct 91 ms 14828 KB Output is correct
56 Correct 92 ms 14924 KB Output is correct
57 Correct 103 ms 14828 KB Output is correct
58 Correct 100 ms 14952 KB Output is correct
59 Correct 91 ms 14828 KB Output is correct
60 Correct 94 ms 14940 KB Output is correct
61 Correct 95 ms 14828 KB Output is correct
62 Correct 83 ms 14824 KB Output is correct
63 Correct 88 ms 14828 KB Output is correct
64 Correct 91 ms 14828 KB Output is correct
65 Correct 113 ms 14824 KB Output is correct
66 Correct 112 ms 14828 KB Output is correct
67 Correct 105 ms 15724 KB Output is correct
68 Correct 105 ms 15632 KB Output is correct
69 Correct 102 ms 15464 KB Output is correct
70 Correct 110 ms 15356 KB Output is correct
71 Correct 111 ms 15720 KB Output is correct
72 Correct 111 ms 15720 KB Output is correct
73 Correct 120 ms 15468 KB Output is correct
74 Correct 110 ms 15360 KB Output is correct
75 Correct 115 ms 14968 KB Output is correct
76 Correct 113 ms 14928 KB Output is correct
77 Correct 108 ms 14952 KB Output is correct
78 Correct 95 ms 14956 KB Output is correct
79 Correct 96 ms 14860 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8184 KB Output is correct
2 Correct 9 ms 8184 KB Output is correct
3 Correct 9 ms 8316 KB Output is correct
4 Correct 9 ms 8184 KB Output is correct
5 Correct 9 ms 8140 KB Output is correct
6 Correct 9 ms 8188 KB Output is correct
7 Correct 9 ms 8184 KB Output is correct
8 Correct 9 ms 8184 KB Output is correct
9 Correct 9 ms 8184 KB Output is correct
10 Correct 9 ms 8184 KB Output is correct
11 Correct 9 ms 8184 KB Output is correct
12 Correct 9 ms 8184 KB Output is correct
13 Correct 9 ms 8184 KB Output is correct
14 Correct 9 ms 8184 KB Output is correct
15 Correct 9 ms 8184 KB Output is correct
16 Correct 9 ms 8184 KB Output is correct
17 Correct 9 ms 8184 KB Output is correct
18 Correct 11 ms 8184 KB Output is correct
19 Correct 9 ms 8184 KB Output is correct
20 Correct 9 ms 8184 KB Output is correct
21 Correct 9 ms 8184 KB Output is correct
22 Correct 9 ms 8184 KB Output is correct
23 Correct 9 ms 8184 KB Output is correct
24 Correct 9 ms 8184 KB Output is correct
25 Correct 10 ms 8312 KB Output is correct
26 Correct 10 ms 8312 KB Output is correct
27 Correct 10 ms 8312 KB Output is correct
28 Correct 10 ms 8312 KB Output is correct
29 Correct 10 ms 8312 KB Output is correct
30 Correct 10 ms 8312 KB Output is correct
31 Correct 11 ms 8312 KB Output is correct
32 Correct 10 ms 8312 KB Output is correct
33 Correct 10 ms 8312 KB Output is correct
34 Correct 10 ms 8312 KB Output is correct
35 Correct 10 ms 8312 KB Output is correct
36 Correct 10 ms 8312 KB Output is correct
37 Correct 10 ms 8316 KB Output is correct
38 Correct 10 ms 8312 KB Output is correct
39 Correct 10 ms 8312 KB Output is correct
40 Correct 10 ms 8360 KB Output is correct
41 Correct 10 ms 8312 KB Output is correct
42 Correct 10 ms 8312 KB Output is correct
43 Correct 10 ms 8312 KB Output is correct
44 Correct 10 ms 8312 KB Output is correct
45 Correct 96 ms 14932 KB Output is correct
46 Correct 106 ms 14852 KB Output is correct
47 Correct 106 ms 14824 KB Output is correct
48 Correct 95 ms 14956 KB Output is correct
49 Correct 95 ms 14956 KB Output is correct
50 Correct 92 ms 14824 KB Output is correct
51 Correct 91 ms 14824 KB Output is correct
52 Correct 103 ms 14852 KB Output is correct
53 Correct 102 ms 14828 KB Output is correct
54 Correct 93 ms 14956 KB Output is correct
55 Correct 91 ms 14828 KB Output is correct
56 Correct 92 ms 14924 KB Output is correct
57 Correct 103 ms 14828 KB Output is correct
58 Correct 100 ms 14952 KB Output is correct
59 Correct 91 ms 14828 KB Output is correct
60 Correct 94 ms 14940 KB Output is correct
61 Correct 95 ms 14828 KB Output is correct
62 Correct 83 ms 14824 KB Output is correct
63 Correct 88 ms 14828 KB Output is correct
64 Correct 91 ms 14828 KB Output is correct
65 Correct 113 ms 14824 KB Output is correct
66 Correct 112 ms 14828 KB Output is correct
67 Correct 105 ms 15724 KB Output is correct
68 Correct 105 ms 15632 KB Output is correct
69 Correct 102 ms 15464 KB Output is correct
70 Correct 110 ms 15356 KB Output is correct
71 Correct 111 ms 15720 KB Output is correct
72 Correct 111 ms 15720 KB Output is correct
73 Correct 120 ms 15468 KB Output is correct
74 Correct 110 ms 15360 KB Output is correct
75 Correct 115 ms 14968 KB Output is correct
76 Correct 113 ms 14928 KB Output is correct
77 Correct 108 ms 14952 KB Output is correct
78 Correct 95 ms 14956 KB Output is correct
79 Correct 96 ms 14860 KB Output is correct
80 Correct 970 ms 77520 KB Output is correct
81 Correct 970 ms 77464 KB Output is correct
82 Correct 1027 ms 77524 KB Output is correct
83 Correct 1006 ms 77664 KB Output is correct
84 Correct 1000 ms 77664 KB Output is correct
85 Correct 948 ms 77520 KB Output is correct
86 Correct 957 ms 77528 KB Output is correct
87 Correct 1240 ms 77660 KB Output is correct
88 Correct 1235 ms 77540 KB Output is correct
89 Correct 1135 ms 77776 KB Output is correct
90 Correct 1119 ms 77708 KB Output is correct
91 Correct 1116 ms 77708 KB Output is correct
92 Correct 1260 ms 77548 KB Output is correct
93 Correct 1238 ms 77724 KB Output is correct
94 Correct 927 ms 77580 KB Output is correct
95 Correct 962 ms 77620 KB Output is correct
96 Correct 959 ms 77656 KB Output is correct
97 Correct 891 ms 77564 KB Output is correct
98 Correct 923 ms 77612 KB Output is correct
99 Correct 929 ms 77656 KB Output is correct
100 Correct 1793 ms 77612 KB Output is correct
101 Correct 1839 ms 77648 KB Output is correct
102 Correct 1352 ms 85328 KB Output is correct
103 Correct 1442 ms 85524 KB Output is correct
104 Correct 1394 ms 82896 KB Output is correct
105 Correct 1363 ms 82768 KB Output is correct
106 Correct 1468 ms 85332 KB Output is correct
107 Correct 1429 ms 85328 KB Output is correct
108 Correct 1391 ms 82896 KB Output is correct
109 Correct 1390 ms 82896 KB Output is correct
110 Correct 1285 ms 77488 KB Output is correct
111 Correct 1302 ms 77520 KB Output is correct
112 Correct 1299 ms 77524 KB Output is correct
113 Correct 969 ms 77660 KB Output is correct
114 Correct 972 ms 77520 KB Output is correct