oj.uz

Submission #535645

# Submission time Handle Problem Language Result Execution time Memory
535645 2022-03-10T19:05:23 Z RaresFelix Meetings (JOI19_meetings) C++17
100 / 100
 887 ms 3192 KB 
#include "meetings.h"
#include <bits/stdc++.h>

using namespace std;

using vi = vector<int>;

map<tuple<int, int, int>, int> Bfq;

int query(int a, int b, int c) {
    if(a > b) return query(b, a, c);
    if(a > c) return query(c, b, a);
    if(b > c) return query(a, c, b);
    if(Bfq.count({a, b, c})) return Bfq[{a, b, c}];
    int v = Query(a, b, c);
    Bfq[{a, b, c}] = v;
    return v;
}
#define pb push_back
void bridge(int a, int b) {
    Bridge(min(a, b), max(a, b));
}
void solve(int root, const vi& U, mt19937 rng) {
    if(U.empty()) return;
    map<int, vi> Altii;
    vi lant;
    int pivot = U[uniform_int_distribution<int>(0, U.size() - 1)(rng)];
    lant.pb(pivot);
    for(auto it : U) {
        if(it == pivot) continue;
        int v = query(root, it, pivot);
        if(v == it) lant.pb(v);
        else Altii[v].pb(it);
    }
    sort(lant.begin(), lant.end(), [&](auto a, auto b) {
       return query(root, a, b) == a;
    });
    bridge(root, lant[0]);
    for(int i = 0; i < lant.size() - 1; ++i)
        bridge(lant[i], lant[i+1]);
    for(auto &[rn, Un] : Altii)
        solve(rn, Un, rng);
}

void Solve(int N) {
    Bfq.clear();
    mt19937 rng(2);
    vi E;
    for(int i = 1; i < N; ++i) E.pb(i);
    solve(0, E, rng);
}

Compilation message

meetings.cpp: In function 'void solve(int, const vi&, std::mt19937)':
meetings.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for(int i = 0; i < lant.size() - 1; ++i)
      |                    ~~^~~~~~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 464 KB Output is correct
21 Correct 1 ms 464 KB Output is correct
22 Correct 1 ms 464 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 336 KB Output is correct
2 Correct 0 ms 336 KB Output is correct
3 Correct 0 ms 336 KB Output is correct
4 Correct 0 ms 336 KB Output is correct
5 Correct 0 ms 336 KB Output is correct
6 Correct 0 ms 336 KB Output is correct
7 Correct 1 ms 336 KB Output is correct
8 Correct 0 ms 336 KB Output is correct
9 Correct 0 ms 336 KB Output is correct
10 Correct 1 ms 336 KB Output is correct
11 Correct 0 ms 336 KB Output is correct
12 Correct 0 ms 336 KB Output is correct
13 Correct 0 ms 336 KB Output is correct
14 Correct 1 ms 336 KB Output is correct
15 Correct 1 ms 336 KB Output is correct
16 Correct 1 ms 336 KB Output is correct
17 Correct 1 ms 336 KB Output is correct
18 Correct 1 ms 336 KB Output is correct
19 Correct 1 ms 336 KB Output is correct
20 Correct 1 ms 464 KB Output is correct
21 Correct 1 ms 464 KB Output is correct
22 Correct 1 ms 464 KB Output is correct
23 Correct 1 ms 336 KB Output is correct
24 Correct 1 ms 336 KB Output is correct
25 Correct 1 ms 336 KB Output is correct
26 Correct 1 ms 336 KB Output is correct
27 Correct 5 ms 496 KB Output is correct
28 Correct 4 ms 464 KB Output is correct
29 Correct 5 ms 464 KB Output is correct
30 Correct 4 ms 464 KB Output is correct
31 Correct 3 ms 464 KB Output is correct
32 Correct 5 ms 592 KB Output is correct
33 Correct 8 ms 720 KB Output is correct
34 Correct 13 ms 740 KB Output is correct
35 Correct 11 ms 720 KB Output is correct
36 Correct 4 ms 464 KB Output is correct
37 Correct 10 ms 508 KB Output is correct
38 Correct 10 ms 596 KB Output is correct
39 Correct 8 ms 464 KB Output is correct

Subtask #4
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 315 ms 1572 KB Output is correct
2 Correct 292 ms 1556 KB Output is correct
3 Correct 357 ms 1632 KB Output is correct
4 Correct 349 ms 1692 KB Output is correct
5 Correct 270 ms 1280 KB Output is correct
6 Correct 235 ms 1464 KB Output is correct
7 Correct 389 ms 2308 KB Output is correct
8 Correct 489 ms 2844 KB Output is correct
9 Correct 524 ms 3100 KB Output is correct
10 Correct 499 ms 3044 KB Output is correct
11 Correct 570 ms 3012 KB Output is correct
12 Correct 352 ms 1452 KB Output is correct
13 Correct 230 ms 1392 KB Output is correct
14 Correct 325 ms 1884 KB Output is correct
15 Correct 308 ms 1852 KB Output is correct
16 Correct 366 ms 1860 KB Output is correct
17 Correct 733 ms 3060 KB Output is correct
18 Correct 444 ms 1924 KB Output is correct
19 Correct 443 ms 1840 KB Output is correct
20 Correct 399 ms 1804 KB Output is correct
21 Correct 406 ms 2004 KB Output is correct
22 Correct 452 ms 1824 KB Output is correct
23 Correct 410 ms 1796 KB Output is correct
24 Correct 420 ms 1816 KB Output is correct
25 Correct 613 ms 1876 KB Output is correct
26 Correct 484 ms 1872 KB Output is correct
27 Correct 526 ms 1872 KB Output is correct
28 Correct 605 ms 3048 KB Output is correct
29 Correct 508 ms 3192 KB Output is correct
30 Correct 518 ms 3016 KB Output is correct
31 Correct 499 ms 2912 KB Output is correct
32 Correct 887 ms 2212 KB Output is correct
33 Correct 791 ms 1764 KB Output is correct
34 Correct 5 ms 464 KB Output is correct
35 Correct 5 ms 492 KB Output is correct
36 Correct 9 ms 460 KB Output is correct
37 Correct 4 ms 464 KB Output is correct
38 Correct 5 ms 464 KB Output is correct
39 Correct 6 ms 596 KB Output is correct
40 Correct 9 ms 720 KB Output is correct
41 Correct 10 ms 756 KB Output is correct
42 Correct 17 ms 780 KB Output is correct
43 Correct 4 ms 464 KB Output is correct
44 Correct 15 ms 476 KB Output is correct
45 Correct 15 ms 596 KB Output is correct
46 Correct 8 ms 464 KB Output is correct
47 Correct 1 ms 336 KB Output is correct
48 Correct 1 ms 336 KB Output is correct
49 Correct 1 ms 336 KB Output is correct
50 Correct 1 ms 336 KB Output is correct
51 Correct 1 ms 336 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 464 KB Output is correct
54 Correct 1 ms 464 KB Output is correct
55 Correct 1 ms 464 KB Output is correct
56 Correct 1 ms 336 KB Output is correct
57 Correct 1 ms 336 KB Output is correct
58 Correct 1 ms 464 KB Output is correct
59 Correct 1 ms 336 KB Output is correct
60 Correct 1 ms 336 KB Output is correct
61 Correct 0 ms 336 KB Output is correct
62 Correct 1 ms 336 KB Output is correct
63 Correct 0 ms 336 KB Output is correct
64 Correct 0 ms 336 KB Output is correct
65 Correct 0 ms 336 KB Output is correct
66 Correct 0 ms 336 KB Output is correct
67 Correct 0 ms 336 KB Output is correct
68 Correct 0 ms 336 KB Output is correct
69 Correct 1 ms 336 KB Output is correct
70 Correct 0 ms 336 KB Output is correct
71 Correct 1 ms 336 KB Output is correct
72 Correct 1 ms 336 KB Output is correct