oj.uz

Submission #238757

# Submission time Handle Problem Language Result Execution time Memory
238757 2020-06-12T16:00:15 Z DodgeBallMan Port Facility (JOI17_port_facility) C++14
100 / 100
 1492 ms 85460 KB 
#include <bits/stdc++.h>

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

using namespace std;

const int N = 2e6 + 10;

long long mod = 1e9 + 7;
vector<pii> vec;
int par[N], n;
map<int, int> mp;

int findroot( int now ) { return par[now] == now ? now : par[now] = findroot( par[now] ); }

int main()
{
    for( int i = 1 ; i < N ; i++ ) par[i] = i;
    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 l = mp.lower_bound( vec[i].x ), r = mp.upper_bound( vec[i].y );
        if( r != mp.begin() ) {
            for( ; l != r ; l++ ) {
                par[findroot(i)] = findroot( l->y + n );
                par[findroot(i+n)] = findroot( l->y );
                if( findroot(l->y) == findroot( prev(r)->y )) break;
            }
        }
        mp[vec[i].y] = i;   
    }
    for( int i = 0 ; i < n ; i++ ) if( findroot( i ) == findroot( i+n ) ) return !printf("0\n");
    long long ans = 1;
    for( int i = 0 ; i < n ; i++ ) if( findroot( i ) == i ) ans = ( ans * 2LL ) % mod;
    printf("%lld\n",ans);
    return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:21:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d",&n);
     ~~~~~^~~~~~~~~
port_facility.cpp:23:14: 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 10 ms 8192 KB Output is correct
2 Correct 10 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 10 ms 8192 KB Output is correct
5 Correct 9 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 10 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 10 ms 8192 KB Output is correct
10 Correct 9 ms 8192 KB Output is correct
11 Correct 9 ms 8192 KB Output is correct
12 Correct 10 ms 8192 KB Output is correct
13 Correct 9 ms 8192 KB Output is correct
14 Correct 11 ms 8192 KB Output is correct
15 Correct 10 ms 8192 KB Output is correct
16 Correct 10 ms 8192 KB Output is correct
17 Correct 10 ms 8192 KB Output is correct
18 Correct 9 ms 8192 KB Output is correct
19 Correct 10 ms 8192 KB Output is correct
20 Correct 9 ms 8192 KB Output is correct
21 Correct 9 ms 8192 KB Output is correct
22 Correct 9 ms 8192 KB Output is correct
23 Correct 9 ms 8192 KB Output is correct
24 Correct 9 ms 8192 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 8192 KB Output is correct
2 Correct 10 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 10 ms 8192 KB Output is correct
5 Correct 9 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 10 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 10 ms 8192 KB Output is correct
10 Correct 9 ms 8192 KB Output is correct
11 Correct 9 ms 8192 KB Output is correct
12 Correct 10 ms 8192 KB Output is correct
13 Correct 9 ms 8192 KB Output is correct
14 Correct 11 ms 8192 KB Output is correct
15 Correct 10 ms 8192 KB Output is correct
16 Correct 10 ms 8192 KB Output is correct
17 Correct 10 ms 8192 KB Output is correct
18 Correct 9 ms 8192 KB Output is correct
19 Correct 10 ms 8192 KB Output is correct
20 Correct 9 ms 8192 KB Output is correct
21 Correct 9 ms 8192 KB Output is correct
22 Correct 9 ms 8192 KB Output is correct
23 Correct 9 ms 8192 KB Output is correct
24 Correct 9 ms 8192 KB Output is correct
25 Correct 11 ms 8192 KB Output is correct
26 Correct 10 ms 8192 KB Output is correct
27 Correct 11 ms 8192 KB Output is correct
28 Correct 11 ms 8192 KB Output is correct
29 Correct 11 ms 8192 KB Output is correct
30 Correct 11 ms 8192 KB Output is correct
31 Correct 14 ms 8320 KB Output is correct
32 Correct 11 ms 8320 KB Output is correct
33 Correct 12 ms 8192 KB Output is correct
34 Correct 11 ms 8192 KB Output is correct
35 Correct 10 ms 8192 KB Output is correct
36 Correct 10 ms 8192 KB Output is correct
37 Correct 10 ms 8192 KB Output is correct
38 Correct 11 ms 8192 KB Output is correct
39 Correct 11 ms 8192 KB Output is correct
40 Correct 10 ms 8192 KB Output is correct
41 Correct 11 ms 8320 KB Output is correct
42 Correct 11 ms 8320 KB Output is correct
43 Correct 11 ms 8192 KB Output is correct
44 Correct 11 ms 8192 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 8192 KB Output is correct
2 Correct 10 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 10 ms 8192 KB Output is correct
5 Correct 9 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 10 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 10 ms 8192 KB Output is correct
10 Correct 9 ms 8192 KB Output is correct
11 Correct 9 ms 8192 KB Output is correct
12 Correct 10 ms 8192 KB Output is correct
13 Correct 9 ms 8192 KB Output is correct
14 Correct 11 ms 8192 KB Output is correct
15 Correct 10 ms 8192 KB Output is correct
16 Correct 10 ms 8192 KB Output is correct
17 Correct 10 ms 8192 KB Output is correct
18 Correct 9 ms 8192 KB Output is correct
19 Correct 10 ms 8192 KB Output is correct
20 Correct 9 ms 8192 KB Output is correct
21 Correct 9 ms 8192 KB Output is correct
22 Correct 9 ms 8192 KB Output is correct
23 Correct 9 ms 8192 KB Output is correct
24 Correct 9 ms 8192 KB Output is correct
25 Correct 11 ms 8192 KB Output is correct
26 Correct 10 ms 8192 KB Output is correct
27 Correct 11 ms 8192 KB Output is correct
28 Correct 11 ms 8192 KB Output is correct
29 Correct 11 ms 8192 KB Output is correct
30 Correct 11 ms 8192 KB Output is correct
31 Correct 14 ms 8320 KB Output is correct
32 Correct 11 ms 8320 KB Output is correct
33 Correct 12 ms 8192 KB Output is correct
34 Correct 11 ms 8192 KB Output is correct
35 Correct 10 ms 8192 KB Output is correct
36 Correct 10 ms 8192 KB Output is correct
37 Correct 10 ms 8192 KB Output is correct
38 Correct 11 ms 8192 KB Output is correct
39 Correct 11 ms 8192 KB Output is correct
40 Correct 10 ms 8192 KB Output is correct
41 Correct 11 ms 8320 KB Output is correct
42 Correct 11 ms 8320 KB Output is correct
43 Correct 11 ms 8192 KB Output is correct
44 Correct 11 ms 8192 KB Output is correct
45 Correct 90 ms 13656 KB Output is correct
46 Correct 91 ms 13672 KB Output is correct
47 Correct 90 ms 13800 KB Output is correct
48 Correct 88 ms 13676 KB Output is correct
49 Correct 88 ms 13676 KB Output is correct
50 Correct 85 ms 13712 KB Output is correct
51 Correct 85 ms 13676 KB Output is correct
52 Correct 89 ms 13680 KB Output is correct
53 Correct 88 ms 13676 KB Output is correct
54 Correct 77 ms 13672 KB Output is correct
55 Correct 79 ms 13676 KB Output is correct
56 Correct 79 ms 13672 KB Output is correct
57 Correct 89 ms 13672 KB Output is correct
58 Correct 87 ms 13676 KB Output is correct
59 Correct 82 ms 13672 KB Output is correct
60 Correct 87 ms 13672 KB Output is correct
61 Correct 87 ms 13672 KB Output is correct
62 Correct 78 ms 13672 KB Output is correct
63 Correct 83 ms 13676 KB Output is correct
64 Correct 84 ms 13680 KB Output is correct
65 Correct 100 ms 13672 KB Output is correct
66 Correct 113 ms 13672 KB Output is correct
67 Correct 90 ms 14444 KB Output is correct
68 Correct 89 ms 14444 KB Output is correct
69 Correct 87 ms 14188 KB Output is correct
70 Correct 88 ms 14184 KB Output is correct
71 Correct 88 ms 14440 KB Output is correct
72 Correct 88 ms 14444 KB Output is correct
73 Correct 88 ms 14160 KB Output is correct
74 Correct 88 ms 14188 KB Output is correct
75 Correct 91 ms 13676 KB Output is correct
76 Correct 91 ms 13620 KB Output is correct
77 Correct 90 ms 13676 KB Output is correct
78 Correct 87 ms 13736 KB Output is correct
79 Correct 88 ms 13676 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 8192 KB Output is correct
2 Correct 10 ms 8192 KB Output is correct
3 Correct 9 ms 8192 KB Output is correct
4 Correct 10 ms 8192 KB Output is correct
5 Correct 9 ms 8192 KB Output is correct
6 Correct 9 ms 8192 KB Output is correct
7 Correct 10 ms 8192 KB Output is correct
8 Correct 9 ms 8192 KB Output is correct
9 Correct 10 ms 8192 KB Output is correct
10 Correct 9 ms 8192 KB Output is correct
11 Correct 9 ms 8192 KB Output is correct
12 Correct 10 ms 8192 KB Output is correct
13 Correct 9 ms 8192 KB Output is correct
14 Correct 11 ms 8192 KB Output is correct
15 Correct 10 ms 8192 KB Output is correct
16 Correct 10 ms 8192 KB Output is correct
17 Correct 10 ms 8192 KB Output is correct
18 Correct 9 ms 8192 KB Output is correct
19 Correct 10 ms 8192 KB Output is correct
20 Correct 9 ms 8192 KB Output is correct
21 Correct 9 ms 8192 KB Output is correct
22 Correct 9 ms 8192 KB Output is correct
23 Correct 9 ms 8192 KB Output is correct
24 Correct 9 ms 8192 KB Output is correct
25 Correct 11 ms 8192 KB Output is correct
26 Correct 10 ms 8192 KB Output is correct
27 Correct 11 ms 8192 KB Output is correct
28 Correct 11 ms 8192 KB Output is correct
29 Correct 11 ms 8192 KB Output is correct
30 Correct 11 ms 8192 KB Output is correct
31 Correct 14 ms 8320 KB Output is correct
32 Correct 11 ms 8320 KB Output is correct
33 Correct 12 ms 8192 KB Output is correct
34 Correct 11 ms 8192 KB Output is correct
35 Correct 10 ms 8192 KB Output is correct
36 Correct 10 ms 8192 KB Output is correct
37 Correct 10 ms 8192 KB Output is correct
38 Correct 11 ms 8192 KB Output is correct
39 Correct 11 ms 8192 KB Output is correct
40 Correct 10 ms 8192 KB Output is correct
41 Correct 11 ms 8320 KB Output is correct
42 Correct 11 ms 8320 KB Output is correct
43 Correct 11 ms 8192 KB Output is correct
44 Correct 11 ms 8192 KB Output is correct
45 Correct 90 ms 13656 KB Output is correct
46 Correct 91 ms 13672 KB Output is correct
47 Correct 90 ms 13800 KB Output is correct
48 Correct 88 ms 13676 KB Output is correct
49 Correct 88 ms 13676 KB Output is correct
50 Correct 85 ms 13712 KB Output is correct
51 Correct 85 ms 13676 KB Output is correct
52 Correct 89 ms 13680 KB Output is correct
53 Correct 88 ms 13676 KB Output is correct
54 Correct 77 ms 13672 KB Output is correct
55 Correct 79 ms 13676 KB Output is correct
56 Correct 79 ms 13672 KB Output is correct
57 Correct 89 ms 13672 KB Output is correct
58 Correct 87 ms 13676 KB Output is correct
59 Correct 82 ms 13672 KB Output is correct
60 Correct 87 ms 13672 KB Output is correct
61 Correct 87 ms 13672 KB Output is correct
62 Correct 78 ms 13672 KB Output is correct
63 Correct 83 ms 13676 KB Output is correct
64 Correct 84 ms 13680 KB Output is correct
65 Correct 100 ms 13672 KB Output is correct
66 Correct 113 ms 13672 KB Output is correct
67 Correct 90 ms 14444 KB Output is correct
68 Correct 89 ms 14444 KB Output is correct
69 Correct 87 ms 14188 KB Output is correct
70 Correct 88 ms 14184 KB Output is correct
71 Correct 88 ms 14440 KB Output is correct
72 Correct 88 ms 14444 KB Output is correct
73 Correct 88 ms 14160 KB Output is correct
74 Correct 88 ms 14188 KB Output is correct
75 Correct 91 ms 13676 KB Output is correct
76 Correct 91 ms 13620 KB Output is correct
77 Correct 90 ms 13676 KB Output is correct
78 Correct 87 ms 13736 KB Output is correct
79 Correct 88 ms 13676 KB Output is correct
80 Correct 857 ms 63056 KB Output is correct
81 Correct 867 ms 77620 KB Output is correct
82 Correct 859 ms 77648 KB Output is correct
83 Correct 866 ms 77476 KB Output is correct
84 Correct 861 ms 77676 KB Output is correct
85 Correct 849 ms 77520 KB Output is correct
86 Correct 846 ms 77648 KB Output is correct
87 Correct 935 ms 77520 KB Output is correct
88 Correct 935 ms 77520 KB Output is correct
89 Correct 832 ms 77644 KB Output is correct
90 Correct 843 ms 77520 KB Output is correct
91 Correct 850 ms 77868 KB Output is correct
92 Correct 937 ms 77648 KB Output is correct
93 Correct 957 ms 77648 KB Output is correct
94 Correct 826 ms 77776 KB Output is correct
95 Correct 849 ms 77568 KB Output is correct
96 Correct 863 ms 77520 KB Output is correct
97 Correct 799 ms 77520 KB Output is correct
98 Correct 831 ms 77620 KB Output is correct
99 Correct 819 ms 77776 KB Output is correct
100 Correct 1461 ms 77648 KB Output is correct
101 Correct 1492 ms 77648 KB Output is correct
102 Correct 1000 ms 85440 KB Output is correct
103 Correct 1008 ms 85324 KB Output is correct
104 Correct 982 ms 82920 KB Output is correct
105 Correct 1006 ms 82844 KB Output is correct
106 Correct 984 ms 85460 KB Output is correct
107 Correct 1006 ms 85336 KB Output is correct
108 Correct 1006 ms 82660 KB Output is correct
109 Correct 1016 ms 82640 KB Output is correct
110 Correct 949 ms 77624 KB Output is correct
111 Correct 1004 ms 77748 KB Output is correct
112 Correct 990 ms 77772 KB Output is correct
113 Correct 858 ms 77776 KB Output is correct
114 Correct 856 ms 77648 KB Output is correct