oj.uz

Submission #68309

# Submission time Handle Problem Language Result Execution time Memory
68309 2018-08-16T15:23:38 Z reality Port Facility (JOI17_port_facility) C++17
100 / 100
 2785 ms 585136 KB 
#include "bits/stdc++.h"
using namespace std;
#define fi first
#define se second
#define ll long long
#define dbg(v) cerr<<#v<<" = "<<v<<'\n'
#define vi vector<int>
#define vl vector <ll>
#define pii pair<int,int>
#define vii vector < pii >
#define mp make_pair
#define db long double
#define pb push_back
#define all(s) s.begin(),s.end()
template < class P , class Q > ostream& operator<<(ostream& stream, pair < P , Q > v){ stream << "(" << v.fi << ',' << v.se << ")"; return stream;}
template < class T > ostream& operator<<(ostream& stream, const vector<T> v){ stream << "[ "; for (int i=0; i<(int)v.size(); i++) stream << v[i] << " "; stream << "]"; return stream;}
template < class T > T smin(T &a,T b) {if (a > b) a = b;return a;}
template < class T > T smax(T &a,T b) {if (a < b) a = b;return a;}
const int N = 2e6 + 5;
const int mod = 1e9 + 7;
int n;
int color[N];
vi g[N];
int f[N];
int get(int k) {
    return f[k] == k ? k : f[k] = get(f[k]);
} 
int main(void) {
    ios_base::sync_with_stdio(0);
    cin>>n;
    int ans = 1;
    vii e(n);
    for (auto & it : e)
        cin>>it.fi>>it.se;
    sort(all(e));
    for (int i = 0;i < n + n;++i)
        f[i] = i;
    map < int , int > M;
    for (int i = 0;i < n;++i) {
        auto l = M.lower_bound(e[i].fi);
        auto r = M.lower_bound(e[i].se);
        if (!M.empty()) {
            int lst;
            if (r != M.begin()) {
                --r;
                lst = get(r->se);
                ++r;
            } else {
                lst = get(r->se);
            }
            while (l != r) {
                f[get(l->se + n)] = get(i);
                f[get(l->se)] = get(i + n);
                if (get(l->se) == get(lst))
                    break;
                ++l;
            }
        }
        M[e[i].se] = i;
    }
    set < int > ss;
    for (int i = 0;i < n;++i)
        if (get(i) == get(i + n))
            ans = 0;
    for (int i = 0;i < n + n;++i)
            ss.insert(get(i));
    for (int i = 0;i < ss.size();i += 2)
        ans = (ans * 2) % mod;
    cout << ans << '\n';
    return 0;
}

Compilation message

port_facility.cpp: In function 'int main()':
port_facility.cpp:67:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (int i = 0;i < ss.size();i += 2)
                    ~~^~~~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 47224 KB Output is correct
2 Correct 53 ms 47336 KB Output is correct
3 Correct 53 ms 47376 KB Output is correct
4 Correct 45 ms 47556 KB Output is correct
5 Correct 46 ms 47556 KB Output is correct
6 Correct 45 ms 47560 KB Output is correct
7 Correct 48 ms 47564 KB Output is correct
8 Correct 44 ms 47740 KB Output is correct
9 Correct 50 ms 47740 KB Output is correct
10 Correct 46 ms 47740 KB Output is correct
11 Correct 44 ms 47740 KB Output is correct
12 Correct 46 ms 47740 KB Output is correct
13 Correct 53 ms 47740 KB Output is correct
14 Correct 52 ms 47744 KB Output is correct
15 Correct 47 ms 47768 KB Output is correct
16 Correct 56 ms 47768 KB Output is correct
17 Correct 45 ms 47768 KB Output is correct
18 Correct 42 ms 47768 KB Output is correct
19 Correct 46 ms 47768 KB Output is correct
20 Correct 45 ms 47896 KB Output is correct
21 Correct 52 ms 47896 KB Output is correct
22 Correct 53 ms 47896 KB Output is correct
23 Correct 50 ms 47896 KB Output is correct
24 Correct 52 ms 47896 KB Output is correct

Subtask #2
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 47224 KB Output is correct
2 Correct 53 ms 47336 KB Output is correct
3 Correct 53 ms 47376 KB Output is correct
4 Correct 45 ms 47556 KB Output is correct
5 Correct 46 ms 47556 KB Output is correct
6 Correct 45 ms 47560 KB Output is correct
7 Correct 48 ms 47564 KB Output is correct
8 Correct 44 ms 47740 KB Output is correct
9 Correct 50 ms 47740 KB Output is correct
10 Correct 46 ms 47740 KB Output is correct
11 Correct 44 ms 47740 KB Output is correct
12 Correct 46 ms 47740 KB Output is correct
13 Correct 53 ms 47740 KB Output is correct
14 Correct 52 ms 47744 KB Output is correct
15 Correct 47 ms 47768 KB Output is correct
16 Correct 56 ms 47768 KB Output is correct
17 Correct 45 ms 47768 KB Output is correct
18 Correct 42 ms 47768 KB Output is correct
19 Correct 46 ms 47768 KB Output is correct
20 Correct 45 ms 47896 KB Output is correct
21 Correct 52 ms 47896 KB Output is correct
22 Correct 53 ms 47896 KB Output is correct
23 Correct 50 ms 47896 KB Output is correct
24 Correct 52 ms 47896 KB Output is correct
25 Correct 54 ms 47912 KB Output is correct
26 Correct 58 ms 47936 KB Output is correct
27 Correct 53 ms 48068 KB Output is correct
28 Correct 47 ms 48200 KB Output is correct
29 Correct 47 ms 48200 KB Output is correct
30 Correct 47 ms 48200 KB Output is correct
31 Correct 45 ms 48200 KB Output is correct
32 Correct 47 ms 48200 KB Output is correct
33 Correct 45 ms 48200 KB Output is correct
34 Correct 47 ms 48200 KB Output is correct
35 Correct 43 ms 48328 KB Output is correct
36 Correct 48 ms 48476 KB Output is correct
37 Correct 54 ms 48476 KB Output is correct
38 Correct 54 ms 48476 KB Output is correct
39 Correct 46 ms 48476 KB Output is correct
40 Correct 48 ms 48572 KB Output is correct
41 Correct 45 ms 48572 KB Output is correct
42 Correct 47 ms 48572 KB Output is correct
43 Correct 54 ms 48572 KB Output is correct
44 Correct 52 ms 48572 KB Output is correct

Subtask #3
56.0 / 56.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 47224 KB Output is correct
2 Correct 53 ms 47336 KB Output is correct
3 Correct 53 ms 47376 KB Output is correct
4 Correct 45 ms 47556 KB Output is correct
5 Correct 46 ms 47556 KB Output is correct
6 Correct 45 ms 47560 KB Output is correct
7 Correct 48 ms 47564 KB Output is correct
8 Correct 44 ms 47740 KB Output is correct
9 Correct 50 ms 47740 KB Output is correct
10 Correct 46 ms 47740 KB Output is correct
11 Correct 44 ms 47740 KB Output is correct
12 Correct 46 ms 47740 KB Output is correct
13 Correct 53 ms 47740 KB Output is correct
14 Correct 52 ms 47744 KB Output is correct
15 Correct 47 ms 47768 KB Output is correct
16 Correct 56 ms 47768 KB Output is correct
17 Correct 45 ms 47768 KB Output is correct
18 Correct 42 ms 47768 KB Output is correct
19 Correct 46 ms 47768 KB Output is correct
20 Correct 45 ms 47896 KB Output is correct
21 Correct 52 ms 47896 KB Output is correct
22 Correct 53 ms 47896 KB Output is correct
23 Correct 50 ms 47896 KB Output is correct
24 Correct 52 ms 47896 KB Output is correct
25 Correct 54 ms 47912 KB Output is correct
26 Correct 58 ms 47936 KB Output is correct
27 Correct 53 ms 48068 KB Output is correct
28 Correct 47 ms 48200 KB Output is correct
29 Correct 47 ms 48200 KB Output is correct
30 Correct 47 ms 48200 KB Output is correct
31 Correct 45 ms 48200 KB Output is correct
32 Correct 47 ms 48200 KB Output is correct
33 Correct 45 ms 48200 KB Output is correct
34 Correct 47 ms 48200 KB Output is correct
35 Correct 43 ms 48328 KB Output is correct
36 Correct 48 ms 48476 KB Output is correct
37 Correct 54 ms 48476 KB Output is correct
38 Correct 54 ms 48476 KB Output is correct
39 Correct 46 ms 48476 KB Output is correct
40 Correct 48 ms 48572 KB Output is correct
41 Correct 45 ms 48572 KB Output is correct
42 Correct 47 ms 48572 KB Output is correct
43 Correct 54 ms 48572 KB Output is correct
44 Correct 52 ms 48572 KB Output is correct
45 Correct 173 ms 57840 KB Output is correct
46 Correct 164 ms 58980 KB Output is correct
47 Correct 207 ms 60264 KB Output is correct
48 Correct 169 ms 61584 KB Output is correct
49 Correct 174 ms 62784 KB Output is correct
50 Correct 174 ms 64072 KB Output is correct
51 Correct 155 ms 65312 KB Output is correct
52 Correct 199 ms 74112 KB Output is correct
53 Correct 213 ms 75248 KB Output is correct
54 Correct 138 ms 75248 KB Output is correct
55 Correct 135 ms 75248 KB Output is correct
56 Correct 149 ms 75248 KB Output is correct
57 Correct 222 ms 75568 KB Output is correct
58 Correct 196 ms 81564 KB Output is correct
59 Correct 163 ms 82056 KB Output is correct
60 Correct 176 ms 82056 KB Output is correct
61 Correct 150 ms 82056 KB Output is correct
62 Correct 229 ms 83540 KB Output is correct
63 Correct 156 ms 83540 KB Output is correct
64 Correct 153 ms 83540 KB Output is correct
65 Correct 171 ms 83540 KB Output is correct
66 Correct 190 ms 83540 KB Output is correct
67 Correct 165 ms 83556 KB Output is correct
68 Correct 139 ms 84900 KB Output is correct
69 Correct 147 ms 86132 KB Output is correct
70 Correct 140 ms 87332 KB Output is correct
71 Correct 139 ms 89460 KB Output is correct
72 Correct 150 ms 90696 KB Output is correct
73 Correct 144 ms 92208 KB Output is correct
74 Correct 138 ms 93556 KB Output is correct
75 Correct 151 ms 95232 KB Output is correct
76 Correct 161 ms 96536 KB Output is correct
77 Correct 151 ms 97940 KB Output is correct
78 Correct 159 ms 99504 KB Output is correct
79 Correct 151 ms 100936 KB Output is correct

Subtask #4
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 47224 KB Output is correct
2 Correct 53 ms 47336 KB Output is correct
3 Correct 53 ms 47376 KB Output is correct
4 Correct 45 ms 47556 KB Output is correct
5 Correct 46 ms 47556 KB Output is correct
6 Correct 45 ms 47560 KB Output is correct
7 Correct 48 ms 47564 KB Output is correct
8 Correct 44 ms 47740 KB Output is correct
9 Correct 50 ms 47740 KB Output is correct
10 Correct 46 ms 47740 KB Output is correct
11 Correct 44 ms 47740 KB Output is correct
12 Correct 46 ms 47740 KB Output is correct
13 Correct 53 ms 47740 KB Output is correct
14 Correct 52 ms 47744 KB Output is correct
15 Correct 47 ms 47768 KB Output is correct
16 Correct 56 ms 47768 KB Output is correct
17 Correct 45 ms 47768 KB Output is correct
18 Correct 42 ms 47768 KB Output is correct
19 Correct 46 ms 47768 KB Output is correct
20 Correct 45 ms 47896 KB Output is correct
21 Correct 52 ms 47896 KB Output is correct
22 Correct 53 ms 47896 KB Output is correct
23 Correct 50 ms 47896 KB Output is correct
24 Correct 52 ms 47896 KB Output is correct
25 Correct 54 ms 47912 KB Output is correct
26 Correct 58 ms 47936 KB Output is correct
27 Correct 53 ms 48068 KB Output is correct
28 Correct 47 ms 48200 KB Output is correct
29 Correct 47 ms 48200 KB Output is correct
30 Correct 47 ms 48200 KB Output is correct
31 Correct 45 ms 48200 KB Output is correct
32 Correct 47 ms 48200 KB Output is correct
33 Correct 45 ms 48200 KB Output is correct
34 Correct 47 ms 48200 KB Output is correct
35 Correct 43 ms 48328 KB Output is correct
36 Correct 48 ms 48476 KB Output is correct
37 Correct 54 ms 48476 KB Output is correct
38 Correct 54 ms 48476 KB Output is correct
39 Correct 46 ms 48476 KB Output is correct
40 Correct 48 ms 48572 KB Output is correct
41 Correct 45 ms 48572 KB Output is correct
42 Correct 47 ms 48572 KB Output is correct
43 Correct 54 ms 48572 KB Output is correct
44 Correct 52 ms 48572 KB Output is correct
45 Correct 173 ms 57840 KB Output is correct
46 Correct 164 ms 58980 KB Output is correct
47 Correct 207 ms 60264 KB Output is correct
48 Correct 169 ms 61584 KB Output is correct
49 Correct 174 ms 62784 KB Output is correct
50 Correct 174 ms 64072 KB Output is correct
51 Correct 155 ms 65312 KB Output is correct
52 Correct 199 ms 74112 KB Output is correct
53 Correct 213 ms 75248 KB Output is correct
54 Correct 138 ms 75248 KB Output is correct
55 Correct 135 ms 75248 KB Output is correct
56 Correct 149 ms 75248 KB Output is correct
57 Correct 222 ms 75568 KB Output is correct
58 Correct 196 ms 81564 KB Output is correct
59 Correct 163 ms 82056 KB Output is correct
60 Correct 176 ms 82056 KB Output is correct
61 Correct 150 ms 82056 KB Output is correct
62 Correct 229 ms 83540 KB Output is correct
63 Correct 156 ms 83540 KB Output is correct
64 Correct 153 ms 83540 KB Output is correct
65 Correct 171 ms 83540 KB Output is correct
66 Correct 190 ms 83540 KB Output is correct
67 Correct 165 ms 83556 KB Output is correct
68 Correct 139 ms 84900 KB Output is correct
69 Correct 147 ms 86132 KB Output is correct
70 Correct 140 ms 87332 KB Output is correct
71 Correct 139 ms 89460 KB Output is correct
72 Correct 150 ms 90696 KB Output is correct
73 Correct 144 ms 92208 KB Output is correct
74 Correct 138 ms 93556 KB Output is correct
75 Correct 151 ms 95232 KB Output is correct
76 Correct 161 ms 96536 KB Output is correct
77 Correct 151 ms 97940 KB Output is correct
78 Correct 159 ms 99504 KB Output is correct
79 Correct 151 ms 100936 KB Output is correct
80 Correct 1287 ms 189532 KB Output is correct
81 Correct 1247 ms 203928 KB Output is correct
82 Correct 1242 ms 217668 KB Output is correct
83 Correct 1283 ms 231336 KB Output is correct
84 Correct 1488 ms 244964 KB Output is correct
85 Correct 1391 ms 258696 KB Output is correct
86 Correct 1406 ms 271552 KB Output is correct
87 Correct 2572 ms 350784 KB Output is correct
88 Correct 2213 ms 364116 KB Output is correct
89 Correct 1293 ms 364116 KB Output is correct
90 Correct 1306 ms 364116 KB Output is correct
91 Correct 1327 ms 364116 KB Output is correct
92 Correct 2335 ms 374000 KB Output is correct
93 Correct 2592 ms 424564 KB Output is correct
94 Correct 1548 ms 424564 KB Output is correct
95 Correct 1558 ms 424564 KB Output is correct
96 Correct 1336 ms 424564 KB Output is correct
97 Correct 1448 ms 445000 KB Output is correct
98 Correct 1350 ms 445000 KB Output is correct
99 Correct 1287 ms 445000 KB Output is correct
100 Correct 2675 ms 445000 KB Output is correct
101 Correct 2785 ms 445000 KB Output is correct
102 Correct 1525 ms 453148 KB Output is correct
103 Correct 1752 ms 463572 KB Output is correct
104 Correct 1568 ms 474028 KB Output is correct
105 Correct 1620 ms 484220 KB Output is correct
106 Correct 1797 ms 499992 KB Output is correct
107 Correct 1877 ms 510076 KB Output is correct
108 Correct 1656 ms 521696 KB Output is correct
109 Correct 1700 ms 531424 KB Output is correct
110 Correct 1662 ms 544588 KB Output is correct
111 Correct 1585 ms 553988 KB Output is correct
112 Correct 1637 ms 563676 KB Output is correct
113 Correct 1258 ms 575748 KB Output is correct
114 Correct 1326 ms 585136 KB Output is correct