Submission #123704

# Submission time Handle Problem Language Result Execution time Memory
123704 2019-07-02T05:08:14 Z 이온조(#3029) Meetings (JOI19_meetings) C++14
100 / 100
1491 ms 16828 KB
#include "meetings.h"
#include <bits/stdc++.h>
using namespace std;
using tiii = tuple<int, int, int>;

int query(int u, int v, int w) {
	if(u == v) return u;
	if(v == w) return v;
	if(w == u) return w;
	return Query(u, v, w);
}

void bridge(int u, int v) {
	if(u > v) swap(u, v);
	// printf("%d <---> %d\n", u, v);
	Bridge(u, v);
}

int D[2009][2009];

void go(vector<int> &S, int u) {
	int N = S.size();
	if(N == 1) return;
	if(N == 2) {
		bridge(S[0], S[1]);
		return;
	}
	int tmp;
	while(1) {
		tmp = S[rand() % N];
		if(tmp != u) break;
	}
	int v = tmp;
	// printf("u: %d, v: %d\n", u, v);

	vector<bool> chk(N, 0);
	map<int, vector<int> > mp;
	vector<int> T, U, V;
	for(auto& it: S) {
		int Q = query(u, v, it);
		mp[Q].push_back(it);
		if(Q != u && Q != v) T.push_back(Q);
	}

	if(T.size()) {
		sort(T.begin(), T.end(), [&](int X, int Y) {
			if(D[X][Y] != -1) return D[X][Y];
			int f = (query(u, X, Y) == X);
			D[X][Y] = f; D[Y][X] = !f;
			return f;
		});
		T.resize(unique(T.begin(), T.end()) - T.begin());
		for(int i=1; i<T.size(); i++) bridge(T[i-1], T[i]);
		bridge(u, T[0]); bridge(T.back(), v);
	}
	else bridge(u, v);

	for(auto& it: mp) go(it.second, it.first);
}

void Solve(int N) {
	srand(190702);
	vector<int> S;
	for(int i=0; i<N; i++) S.push_back(i);
	for(int i=0; i<N; i++) {
		for(int j=0; j<N; j++) {
			if(i == j) D[i][j] = 0;
			else D[i][j] = -1;
		}
	}
	go(S, 0);
}

Compilation message

meetings.cpp: In function 'void go(std::vector<int>&, int)':
meetings.cpp:53:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=1; i<T.size(); i++) bridge(T[i-1], T[i]);
                ~^~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 252 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 252 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 508 KB Output is correct
15 Correct 2 ms 632 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 632 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 632 KB Output is correct
21 Correct 2 ms 508 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 632 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 252 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 2 ms 376 KB Output is correct
6 Correct 2 ms 376 KB Output is correct
7 Correct 2 ms 376 KB Output is correct
8 Correct 2 ms 376 KB Output is correct
9 Correct 2 ms 376 KB Output is correct
10 Correct 2 ms 376 KB Output is correct
11 Correct 2 ms 376 KB Output is correct
12 Correct 2 ms 376 KB Output is correct
13 Correct 2 ms 376 KB Output is correct
14 Correct 2 ms 508 KB Output is correct
15 Correct 2 ms 632 KB Output is correct
16 Correct 2 ms 504 KB Output is correct
17 Correct 2 ms 632 KB Output is correct
18 Correct 2 ms 632 KB Output is correct
19 Correct 2 ms 632 KB Output is correct
20 Correct 2 ms 632 KB Output is correct
21 Correct 2 ms 508 KB Output is correct
22 Correct 2 ms 632 KB Output is correct
23 Correct 2 ms 504 KB Output is correct
24 Correct 2 ms 504 KB Output is correct
25 Correct 2 ms 504 KB Output is correct
26 Correct 2 ms 632 KB Output is correct
27 Correct 8 ms 2040 KB Output is correct
28 Correct 8 ms 1912 KB Output is correct
29 Correct 8 ms 1912 KB Output is correct
30 Correct 7 ms 1912 KB Output is correct
31 Correct 7 ms 2044 KB Output is correct
32 Correct 10 ms 1968 KB Output is correct
33 Correct 15 ms 1952 KB Output is correct
34 Correct 19 ms 2040 KB Output is correct
35 Correct 18 ms 2040 KB Output is correct
36 Correct 7 ms 1908 KB Output is correct
37 Correct 12 ms 2040 KB Output is correct
38 Correct 13 ms 2040 KB Output is correct
39 Correct 9 ms 2040 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 706 ms 16464 KB Output is correct
2 Correct 692 ms 16548 KB Output is correct
3 Correct 735 ms 16424 KB Output is correct
4 Correct 682 ms 16560 KB Output is correct
5 Correct 338 ms 16328 KB Output is correct
6 Correct 353 ms 16296 KB Output is correct
7 Correct 686 ms 16512 KB Output is correct
8 Correct 782 ms 16428 KB Output is correct
9 Correct 927 ms 16488 KB Output is correct
10 Correct 820 ms 16492 KB Output is correct
11 Correct 937 ms 16668 KB Output is correct
12 Correct 528 ms 16548 KB Output is correct
13 Correct 278 ms 16464 KB Output is correct
14 Correct 516 ms 16472 KB Output is correct
15 Correct 472 ms 16632 KB Output is correct
16 Correct 524 ms 16516 KB Output is correct
17 Correct 878 ms 16680 KB Output is correct
18 Correct 461 ms 16636 KB Output is correct
19 Correct 486 ms 16424 KB Output is correct
20 Correct 554 ms 16468 KB Output is correct
21 Correct 537 ms 16460 KB Output is correct
22 Correct 586 ms 16436 KB Output is correct
23 Correct 568 ms 16448 KB Output is correct
24 Correct 531 ms 16436 KB Output is correct
25 Correct 531 ms 16380 KB Output is correct
26 Correct 533 ms 16504 KB Output is correct
27 Correct 529 ms 16664 KB Output is correct
28 Correct 1002 ms 16508 KB Output is correct
29 Correct 778 ms 16524 KB Output is correct
30 Correct 796 ms 16504 KB Output is correct
31 Correct 842 ms 16376 KB Output is correct
32 Correct 1491 ms 16828 KB Output is correct
33 Correct 1010 ms 16704 KB Output is correct
34 Correct 8 ms 1912 KB Output is correct
35 Correct 8 ms 1912 KB Output is correct
36 Correct 8 ms 1912 KB Output is correct
37 Correct 7 ms 1912 KB Output is correct
38 Correct 7 ms 1912 KB Output is correct
39 Correct 10 ms 1912 KB Output is correct
40 Correct 14 ms 2040 KB Output is correct
41 Correct 18 ms 1916 KB Output is correct
42 Correct 17 ms 1912 KB Output is correct
43 Correct 7 ms 1912 KB Output is correct
44 Correct 12 ms 1912 KB Output is correct
45 Correct 13 ms 1912 KB Output is correct
46 Correct 9 ms 1912 KB Output is correct
47 Correct 2 ms 548 KB Output is correct
48 Correct 2 ms 504 KB Output is correct
49 Correct 2 ms 632 KB Output is correct
50 Correct 2 ms 504 KB Output is correct
51 Correct 2 ms 504 KB Output is correct
52 Correct 2 ms 504 KB Output is correct
53 Correct 2 ms 504 KB Output is correct
54 Correct 2 ms 504 KB Output is correct
55 Correct 2 ms 632 KB Output is correct
56 Correct 2 ms 632 KB Output is correct
57 Correct 2 ms 504 KB Output is correct
58 Correct 2 ms 504 KB Output is correct
59 Correct 2 ms 504 KB Output is correct
60 Correct 2 ms 376 KB Output is correct
61 Correct 2 ms 376 KB Output is correct
62 Correct 2 ms 380 KB Output is correct
63 Correct 2 ms 376 KB Output is correct
64 Correct 2 ms 376 KB Output is correct
65 Correct 2 ms 376 KB Output is correct
66 Correct 2 ms 376 KB Output is correct
67 Correct 2 ms 376 KB Output is correct
68 Correct 2 ms 376 KB Output is correct
69 Correct 2 ms 376 KB Output is correct
70 Correct 2 ms 376 KB Output is correct
71 Correct 2 ms 376 KB Output is correct
72 Correct 2 ms 376 KB Output is correct