oj.uz

Submission #236585

# Submission time Handle Problem Language Result Execution time Memory
236585 2020-06-02T14:13:23 Z MvC Meetings (JOI19_meetings) C++14
100 / 100
 1946 ms 1028 KB 
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include<bits/stdc++.h>
#include "meetings.h"
#define fr first
#define sc second
#define vec vector
#define pb push_back
#define pii pair<int, int>
#define forn(x,y) for(int x = 1 ; x <= (int)y ; ++x)
#define all(x) (x).begin(),(x).end()
#define fast cin.tie(0);cout.tie(0);cin.sync_with_stdio(0);cout.sync_with_stdio(0);
 
using namespace std;
 
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
 
 
typedef long long ll;
typedef unsigned int uint;
typedef complex<int> point;
const int nmax = 100005;
const ll linf = 1e18;
const ll mod = 998244353;
const int inf = INT_MAX;
 
vec < pii > eds;
 
int find_center(vec <int> &asd){
	if(asd.size() <= 10)return asd[0];
	vec<int> cnt(asd.size());
	int tries = asd.size()/10;
	srand(time(0));
	while(tries --){
		int m = asd.size();
		int a, b, c;
		a = asd[rand()%m];
		b = asd[rand()%m];
		while(b == a) b = asd[rand()%m];
		c = asd[rand()%m];
		while(c == b || c == a)c = asd[rand()%m];
		// a,b,c - random din asd
		int p = Query(a,b,c);
		cnt[ lower_bound(all(asd),p) - asd.begin()]++;
	}
	int mx = 0;
	for(int i = 0; i < cnt.size() ; i++){
		if(cnt[mx] < cnt[i])mx = i;
	}
	cnt.clear();
	return asd[mx];
}
void solves(vec <int> &tb){
	if(tb.size() == 1)return ;
	int A = find_center(tb);
	int B = tb[0];
	if(B == A)B = tb[1];
	for(int i : tb){
		if(i != A && i != B && Query(A,B,i) == i) B = i;
	}
	eds.pb({A,B});
	vec < int > left;
	vec < int > right;
	for(int  i : tb){
		if(i != A && i != B){
			if(Query(A,B,i) == A){
				left.pb(i);
			}else{
				right.pb(i);
			}
		}
	}
	left.pb(A);
	sort(all(left));	
	solves(left);
	left.clear();
	right.pb(B);
	sort(all(right));
	solves(right);
	right.clear();
}
 
 
void Solve(int n){
	vec < int > asd;
	for(int i= 0; i <n ; i++)asd.pb(i);
	solves(asd);
	for(pii ed : eds){
		Bridge(min(ed.fr,ed.sc),max(ed.fr,ed.sc));
	}
	asd.clear();
}

Compilation message

meetings.cpp: In function 'int find_center(std::vector<int>&)':
meetings.cpp:47:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0; i < cnt.size() ; i++){
                 ~~^~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

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

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 4 ms 384 KB Output is correct
3 Correct 4 ms 384 KB Output is correct
4 Correct 4 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 4 ms 384 KB Output is correct
7 Correct 4 ms 384 KB Output is correct
8 Correct 4 ms 384 KB Output is correct
9 Correct 4 ms 384 KB Output is correct
10 Correct 5 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 4 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 6 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 5 ms 384 KB Output is correct
24 Correct 5 ms 384 KB Output is correct
25 Correct 5 ms 384 KB Output is correct
26 Correct 5 ms 384 KB Output is correct
27 Correct 19 ms 384 KB Output is correct
28 Correct 19 ms 384 KB Output is correct
29 Correct 24 ms 384 KB Output is correct
30 Correct 20 ms 384 KB Output is correct
31 Correct 19 ms 384 KB Output is correct
32 Correct 25 ms 384 KB Output is correct
33 Correct 33 ms 384 KB Output is correct
34 Correct 40 ms 456 KB Output is correct
35 Correct 37 ms 384 KB Output is correct
36 Correct 22 ms 384 KB Output is correct
37 Correct 19 ms 384 KB Output is correct
38 Correct 20 ms 384 KB Output is correct
39 Correct 23 ms 384 KB Output is correct

Subtask #4
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 1668 ms 760 KB Output is correct
2 Correct 1713 ms 756 KB Output is correct
3 Correct 1737 ms 780 KB Output is correct
4 Correct 1868 ms 1028 KB Output is correct
5 Correct 1347 ms 632 KB Output is correct
6 Correct 1212 ms 640 KB Output is correct
7 Correct 1516 ms 900 KB Output is correct
8 Correct 1644 ms 888 KB Output is correct
9 Correct 1714 ms 936 KB Output is correct
10 Correct 1606 ms 892 KB Output is correct
11 Correct 1782 ms 888 KB Output is correct
12 Correct 1348 ms 760 KB Output is correct
13 Correct 1289 ms 760 KB Output is correct
14 Correct 1548 ms 764 KB Output is correct
15 Correct 1404 ms 792 KB Output is correct
16 Correct 1606 ms 760 KB Output is correct
17 Correct 1701 ms 736 KB Output is correct
18 Correct 1429 ms 924 KB Output is correct
19 Correct 1493 ms 920 KB Output is correct
20 Correct 1737 ms 1028 KB Output is correct
21 Correct 1754 ms 888 KB Output is correct
22 Correct 1792 ms 904 KB Output is correct
23 Correct 1705 ms 632 KB Output is correct
24 Correct 1688 ms 760 KB Output is correct
25 Correct 1758 ms 736 KB Output is correct
26 Correct 1733 ms 764 KB Output is correct
27 Correct 1763 ms 756 KB Output is correct
28 Correct 1946 ms 796 KB Output is correct
29 Correct 1555 ms 888 KB Output is correct
30 Correct 1521 ms 820 KB Output is correct
31 Correct 1731 ms 892 KB Output is correct
32 Correct 1442 ms 888 KB Output is correct
33 Correct 1743 ms 1008 KB Output is correct
34 Correct 20 ms 384 KB Output is correct
35 Correct 19 ms 384 KB Output is correct
36 Correct 21 ms 432 KB Output is correct
37 Correct 19 ms 384 KB Output is correct
38 Correct 19 ms 464 KB Output is correct
39 Correct 25 ms 384 KB Output is correct
40 Correct 34 ms 464 KB Output is correct
41 Correct 40 ms 504 KB Output is correct
42 Correct 37 ms 468 KB Output is correct
43 Correct 17 ms 384 KB Output is correct
44 Correct 20 ms 512 KB Output is correct
45 Correct 22 ms 464 KB Output is correct
46 Correct 22 ms 508 KB Output is correct
47 Correct 5 ms 384 KB Output is correct
48 Correct 5 ms 384 KB Output is correct
49 Correct 5 ms 384 KB Output is correct
50 Correct 5 ms 384 KB Output is correct
51 Correct 5 ms 384 KB Output is correct
52 Correct 5 ms 384 KB Output is correct
53 Correct 5 ms 384 KB Output is correct
54 Correct 5 ms 384 KB Output is correct
55 Correct 5 ms 384 KB Output is correct
56 Correct 5 ms 384 KB Output is correct
57 Correct 5 ms 384 KB Output is correct
58 Correct 5 ms 384 KB Output is correct
59 Correct 5 ms 512 KB Output is correct
60 Correct 4 ms 384 KB Output is correct
61 Correct 4 ms 384 KB Output is correct
62 Correct 5 ms 432 KB Output is correct
63 Correct 5 ms 384 KB Output is correct
64 Correct 4 ms 384 KB Output is correct
65 Correct 4 ms 384 KB Output is correct
66 Correct 5 ms 384 KB Output is correct
67 Correct 5 ms 384 KB Output is correct
68 Correct 5 ms 384 KB Output is correct
69 Correct 4 ms 384 KB Output is correct
70 Correct 4 ms 384 KB Output is correct
71 Correct 5 ms 384 KB Output is correct
72 Correct 4 ms 384 KB Output is correct