oj.uz

Submission #363251

# Submission time Handle Problem Language Result Execution time Memory
363251 2021-02-05T11:42:42 Z denkendoemeer Port Facility (JOI17_port_facility) C++14
100 / 100
 1656 ms 93548 KB 
#include<bits/stdc++.h>
#define ll long long
const int inf=1e9;
#define mod 1000000007
using namespace std;
map<int,int>mp;
pair<int,int>v[1000005];
int t[2000005];
int findt(int nod)
{
    if (nod==t[nod])
        return nod;
    return t[nod]=findt(t[nod]);
}
int main()
{
    //freopen(".in","r",stdin);
    //freopen(".out","w",stdout);
    int n,i;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        scanf("%d%d",&v[i].first,&v[i].second);
    }
    sort(v+1,v+n+1);
    for(i=1;i<=2*n;i++)
        t[i]=i;
    for(i=1;i<=n;i++){
        auto a=mp.lower_bound(v[i].first);
        auto b=mp.upper_bound(v[i].second);
        if (b!=mp.begin()){
            for(;a!=b;a++){
                t[findt(i)]=findt(a->second+n);
                t[findt(i+n)]=findt(a->second);
                if (findt(a->second)==findt(prev(b)->second))
                    break;
            }
        }
        mp[v[i].second]=i;
    }
    for(i=1;i<=n;i++)
        if (findt(i)==findt(i+n)){
            printf("0\n");
            return 0;
        }
    ll ans=1;
    for(i=1;i<=n;i++)
        if (findt(i)==i)
            ans=ans*2%mod;
    printf("%lld\n",ans);
return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:20:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   20 |     scanf("%d",&n);
      |     ~~~~~^~~~~~~~~
port_facility.cpp:22:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   22 |         scanf("%d%d",&v[i].first,&v[i].second);
      |         ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 500 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 500 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 2 ms 492 KB Output is correct
26 Correct 2 ms 492 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 2 ms 492 KB Output is correct
29 Correct 2 ms 492 KB Output is correct
30 Correct 2 ms 492 KB Output is correct
31 Correct 2 ms 492 KB Output is correct
32 Correct 2 ms 492 KB Output is correct
33 Correct 2 ms 492 KB Output is correct
34 Correct 2 ms 492 KB Output is correct
35 Correct 2 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 2 ms 492 KB Output is correct
39 Correct 2 ms 492 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 2 ms 492 KB Output is correct
43 Correct 2 ms 492 KB Output is correct
44 Correct 2 ms 492 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 500 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 2 ms 492 KB Output is correct
26 Correct 2 ms 492 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 2 ms 492 KB Output is correct
29 Correct 2 ms 492 KB Output is correct
30 Correct 2 ms 492 KB Output is correct
31 Correct 2 ms 492 KB Output is correct
32 Correct 2 ms 492 KB Output is correct
33 Correct 2 ms 492 KB Output is correct
34 Correct 2 ms 492 KB Output is correct
35 Correct 2 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 2 ms 492 KB Output is correct
39 Correct 2 ms 492 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 2 ms 492 KB Output is correct
43 Correct 2 ms 492 KB Output is correct
44 Correct 2 ms 492 KB Output is correct
45 Correct 80 ms 7868 KB Output is correct
46 Correct 75 ms 7916 KB Output is correct
47 Correct 73 ms 7916 KB Output is correct
48 Correct 74 ms 7916 KB Output is correct
49 Correct 79 ms 7824 KB Output is correct
50 Correct 74 ms 7916 KB Output is correct
51 Correct 75 ms 7908 KB Output is correct
52 Correct 72 ms 7884 KB Output is correct
53 Correct 71 ms 7884 KB Output is correct
54 Correct 62 ms 7916 KB Output is correct
55 Correct 67 ms 7916 KB Output is correct
56 Correct 66 ms 7916 KB Output is correct
57 Correct 73 ms 7916 KB Output is correct
58 Correct 72 ms 7916 KB Output is correct
59 Correct 68 ms 7916 KB Output is correct
60 Correct 77 ms 7916 KB Output is correct
61 Correct 75 ms 7916 KB Output is correct
62 Correct 64 ms 7916 KB Output is correct
63 Correct 69 ms 7916 KB Output is correct
64 Correct 72 ms 7916 KB Output is correct
65 Correct 107 ms 7916 KB Output is correct
66 Correct 87 ms 7916 KB Output is correct
67 Correct 80 ms 9728 KB Output is correct
68 Correct 79 ms 9452 KB Output is correct
69 Correct 81 ms 8940 KB Output is correct
70 Correct 77 ms 8940 KB Output is correct
71 Correct 78 ms 9580 KB Output is correct
72 Correct 75 ms 9452 KB Output is correct
73 Correct 79 ms 8940 KB Output is correct
74 Correct 77 ms 8940 KB Output is correct
75 Correct 73 ms 7916 KB Output is correct
76 Correct 75 ms 7916 KB Output is correct
77 Correct 77 ms 7916 KB Output is correct
78 Correct 73 ms 7916 KB Output is correct
79 Correct 74 ms 7916 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 364 KB Output is correct
2 Correct 1 ms 364 KB Output is correct
3 Correct 1 ms 364 KB Output is correct
4 Correct 1 ms 364 KB Output is correct
5 Correct 1 ms 364 KB Output is correct
6 Correct 1 ms 364 KB Output is correct
7 Correct 1 ms 364 KB Output is correct
8 Correct 1 ms 364 KB Output is correct
9 Correct 1 ms 364 KB Output is correct
10 Correct 1 ms 364 KB Output is correct
11 Correct 1 ms 364 KB Output is correct
12 Correct 1 ms 364 KB Output is correct
13 Correct 1 ms 364 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 1 ms 364 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 364 KB Output is correct
18 Correct 1 ms 364 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 364 KB Output is correct
21 Correct 1 ms 500 KB Output is correct
22 Correct 1 ms 364 KB Output is correct
23 Correct 1 ms 364 KB Output is correct
24 Correct 1 ms 364 KB Output is correct
25 Correct 2 ms 492 KB Output is correct
26 Correct 2 ms 492 KB Output is correct
27 Correct 2 ms 492 KB Output is correct
28 Correct 2 ms 492 KB Output is correct
29 Correct 2 ms 492 KB Output is correct
30 Correct 2 ms 492 KB Output is correct
31 Correct 2 ms 492 KB Output is correct
32 Correct 2 ms 492 KB Output is correct
33 Correct 2 ms 492 KB Output is correct
34 Correct 2 ms 492 KB Output is correct
35 Correct 2 ms 492 KB Output is correct
36 Correct 1 ms 492 KB Output is correct
37 Correct 1 ms 492 KB Output is correct
38 Correct 2 ms 492 KB Output is correct
39 Correct 2 ms 492 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 2 ms 640 KB Output is correct
42 Correct 2 ms 492 KB Output is correct
43 Correct 2 ms 492 KB Output is correct
44 Correct 2 ms 492 KB Output is correct
45 Correct 80 ms 7868 KB Output is correct
46 Correct 75 ms 7916 KB Output is correct
47 Correct 73 ms 7916 KB Output is correct
48 Correct 74 ms 7916 KB Output is correct
49 Correct 79 ms 7824 KB Output is correct
50 Correct 74 ms 7916 KB Output is correct
51 Correct 75 ms 7908 KB Output is correct
52 Correct 72 ms 7884 KB Output is correct
53 Correct 71 ms 7884 KB Output is correct
54 Correct 62 ms 7916 KB Output is correct
55 Correct 67 ms 7916 KB Output is correct
56 Correct 66 ms 7916 KB Output is correct
57 Correct 73 ms 7916 KB Output is correct
58 Correct 72 ms 7916 KB Output is correct
59 Correct 68 ms 7916 KB Output is correct
60 Correct 77 ms 7916 KB Output is correct
61 Correct 75 ms 7916 KB Output is correct
62 Correct 64 ms 7916 KB Output is correct
63 Correct 69 ms 7916 KB Output is correct
64 Correct 72 ms 7916 KB Output is correct
65 Correct 107 ms 7916 KB Output is correct
66 Correct 87 ms 7916 KB Output is correct
67 Correct 80 ms 9728 KB Output is correct
68 Correct 79 ms 9452 KB Output is correct
69 Correct 81 ms 8940 KB Output is correct
70 Correct 77 ms 8940 KB Output is correct
71 Correct 78 ms 9580 KB Output is correct
72 Correct 75 ms 9452 KB Output is correct
73 Correct 79 ms 8940 KB Output is correct
74 Correct 77 ms 8940 KB Output is correct
75 Correct 73 ms 7916 KB Output is correct
76 Correct 75 ms 7916 KB Output is correct
77 Correct 77 ms 7916 KB Output is correct
78 Correct 73 ms 7916 KB Output is correct
79 Correct 74 ms 7916 KB Output is correct
80 Correct 795 ms 77560 KB Output is correct
81 Correct 826 ms 77708 KB Output is correct
82 Correct 814 ms 77572 KB Output is correct
83 Correct 808 ms 77676 KB Output is correct
84 Correct 828 ms 77532 KB Output is correct
85 Correct 824 ms 77508 KB Output is correct
86 Correct 804 ms 77624 KB Output is correct
87 Correct 859 ms 77548 KB Output is correct
88 Correct 892 ms 77580 KB Output is correct
89 Correct 807 ms 77548 KB Output is correct
90 Correct 818 ms 77664 KB Output is correct
91 Correct 815 ms 77584 KB Output is correct
92 Correct 858 ms 77824 KB Output is correct
93 Correct 882 ms 77624 KB Output is correct
94 Correct 755 ms 77580 KB Output is correct
95 Correct 808 ms 77652 KB Output is correct
96 Correct 795 ms 77672 KB Output is correct
97 Correct 751 ms 77736 KB Output is correct
98 Correct 793 ms 77580 KB Output is correct
99 Correct 775 ms 77548 KB Output is correct
100 Correct 1633 ms 77804 KB Output is correct
101 Correct 1656 ms 77700 KB Output is correct
102 Correct 908 ms 93196 KB Output is correct
103 Correct 942 ms 93268 KB Output is correct
104 Correct 912 ms 88064 KB Output is correct
105 Correct 925 ms 88104 KB Output is correct
106 Correct 895 ms 93548 KB Output is correct
107 Correct 971 ms 93288 KB Output is correct
108 Correct 908 ms 88088 KB Output is correct
109 Correct 898 ms 88172 KB Output is correct
110 Correct 883 ms 77804 KB Output is correct
111 Correct 961 ms 77548 KB Output is correct
112 Correct 935 ms 77548 KB Output is correct
113 Correct 810 ms 77548 KB Output is correct
114 Correct 798 ms 77676 KB Output is correct