oj.uz

Submission #299887

# Submission time Handle Problem Language Result Execution time Memory
299887 2020-09-15T23:16:34 Z YJU Meetings (JOI19_meetings) C++14
100 / 100
 1183 ms 1048 KB 
#include<bits/stdc++.h>
#include "meetings.h"
using namespace std;
typedef int ll;
typedef pair<ll,ll> pll;
typedef long double ld;
const ll MOD=1e9+7;
const ll N=2e3+5;
const ld pi=3.14159265359;
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(a) (ll)a.size()

vector<pll> ed;
vector<ll> dg[N];

/*
int Query(ll a,ll b,ll c);
void Bridge(ll a,ll b);
*/

void build(ll nl,ll nr,vector<ll> v){
	vector<ll> l,r,midr,midl,line;
	l.clear();r.clear();midr.clear();midl.clear();line.clear();
	ll id=N-1;
	for(ll i:v){
		ll x=Query(nl,nr,i);
		if(x==nl){
			l.pb(i);
		}else if(x==nr){
			r.pb(i);
		}else{
			if(x==i)line.pb(i);
			dg[x].pb(i);
			id=(SZ(dg[x])>SZ(dg[id])?x:id);
		}
	}
	if(SZ(line)==0){ed.pb(mp(nl,nr));}
	for(ll i:line){
		if(i==id){
			for(ll j:dg[i]){
				if(j!=i)midl.pb(j);
			}
			continue;
		}
		ll x=Query(nl,id,i);
		if(x==i){
			for(ll j:dg[i])midl.pb(j);
		}else{
			for(ll j:dg[i])midr.pb(j);
		}
	}
	for(ll i:line)dg[i].clear();
	random_shuffle(l.begin(),l.end());
	random_shuffle(r.begin(),r.end());
	ll ndl=(SZ(l)?l[0]:-1),ndr=(SZ(r)?r[0]:-1);
	if(SZ(r))r.erase(r.begin());
	if(SZ(l))l.erase(l.begin());
	if(ndl!=-1)build(ndl,nl,l);
	if(ndr!=-1)build(ndr,nr,r);
	if(SZ(line))build(nl,id,midl),build(id,nr,midr);
	return ;
}

void Solve(ll n){
	srand(clock());
	vector<ll> v;
	for(int i=2;i<n;i++)v.pb(i);
	build(0,1,v);
	for(auto i:ed){
		if(i.X>i.Y)swap(i.X,i.Y);
		Bridge(i.X,i.Y);
	}
}
/*
int main(){
	ll n;
	cin>>n;
	Solve(n);
	return 0;
}

int Query(ll a,ll b,ll c){
	cout<<"Q:"<<a<<" "<<b<<" "<<c<<"\n";
	ll y;
	cin>>y;
	return y;
}

void Bridge(ll a,ll b){
	cout<<a<<" "<<b<<"\n";
}
*/

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 0 ms 384 KB Output is correct
5 Correct 0 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 0 ms 384 KB Output is correct
8 Correct 0 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 0 ms 384 KB Output is correct
11 Correct 0 ms 384 KB Output is correct
12 Correct 0 ms 384 KB Output is correct
13 Correct 0 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 1 ms 384 KB Output is correct
17 Correct 1 ms 384 KB Output is correct
18 Correct 1 ms 384 KB Output is correct
19 Correct 1 ms 384 KB Output is correct
20 Correct 1 ms 384 KB Output is correct
21 Correct 1 ms 384 KB Output is correct
22 Correct 1 ms 384 KB Output is correct
23 Correct 1 ms 384 KB Output is correct
24 Correct 1 ms 384 KB Output is correct
25 Correct 1 ms 384 KB Output is correct
26 Correct 1 ms 384 KB Output is correct
27 Correct 8 ms 512 KB Output is correct
28 Correct 8 ms 512 KB Output is correct
29 Correct 9 ms 512 KB Output is correct
30 Correct 8 ms 512 KB Output is correct
31 Correct 8 ms 512 KB Output is correct
32 Correct 8 ms 512 KB Output is correct
33 Correct 13 ms 512 KB Output is correct
34 Correct 15 ms 512 KB Output is correct
35 Correct 13 ms 512 KB Output is correct
36 Correct 10 ms 512 KB Output is correct
37 Correct 13 ms 512 KB Output is correct
38 Correct 12 ms 512 KB Output is correct
39 Correct 20 ms 512 KB Output is correct

Subtask #4
71.0 / 71.0

# Verdict Execution time Memory Grader output
1 Correct 591 ms 792 KB Output is correct
2 Correct 661 ms 760 KB Output is correct
3 Correct 679 ms 760 KB Output is correct
4 Correct 619 ms 888 KB Output is correct
5 Correct 687 ms 888 KB Output is correct
6 Correct 572 ms 1016 KB Output is correct
7 Correct 663 ms 892 KB Output is correct
8 Correct 725 ms 888 KB Output is correct
9 Correct 742 ms 760 KB Output is correct
10 Correct 675 ms 892 KB Output is correct
11 Correct 846 ms 980 KB Output is correct
12 Correct 950 ms 1016 KB Output is correct
13 Correct 720 ms 760 KB Output is correct
14 Correct 801 ms 912 KB Output is correct
15 Correct 762 ms 1020 KB Output is correct
16 Correct 798 ms 1016 KB Output is correct
17 Correct 652 ms 1016 KB Output is correct
18 Correct 727 ms 1048 KB Output is correct
19 Correct 634 ms 988 KB Output is correct
20 Correct 870 ms 760 KB Output is correct
21 Correct 905 ms 1016 KB Output is correct
22 Correct 719 ms 788 KB Output is correct
23 Correct 721 ms 760 KB Output is correct
24 Correct 758 ms 760 KB Output is correct
25 Correct 831 ms 760 KB Output is correct
26 Correct 798 ms 932 KB Output is correct
27 Correct 793 ms 760 KB Output is correct
28 Correct 793 ms 888 KB Output is correct
29 Correct 649 ms 888 KB Output is correct
30 Correct 698 ms 868 KB Output is correct
31 Correct 729 ms 888 KB Output is correct
32 Correct 1072 ms 1016 KB Output is correct
33 Correct 1183 ms 900 KB Output is correct
34 Correct 9 ms 512 KB Output is correct
35 Correct 7 ms 512 KB Output is correct
36 Correct 11 ms 512 KB Output is correct
37 Correct 7 ms 512 KB Output is correct
38 Correct 8 ms 512 KB Output is correct
39 Correct 8 ms 512 KB Output is correct
40 Correct 12 ms 512 KB Output is correct
41 Correct 14 ms 512 KB Output is correct
42 Correct 13 ms 512 KB Output is correct
43 Correct 8 ms 512 KB Output is correct
44 Correct 14 ms 512 KB Output is correct
45 Correct 16 ms 640 KB Output is correct
46 Correct 21 ms 512 KB Output is correct
47 Correct 1 ms 384 KB Output is correct
48 Correct 1 ms 384 KB Output is correct
49 Correct 1 ms 384 KB Output is correct
50 Correct 1 ms 384 KB Output is correct
51 Correct 1 ms 384 KB Output is correct
52 Correct 1 ms 384 KB Output is correct
53 Correct 1 ms 384 KB Output is correct
54 Correct 1 ms 384 KB Output is correct
55 Correct 1 ms 384 KB Output is correct
56 Correct 1 ms 384 KB Output is correct
57 Correct 1 ms 384 KB Output is correct
58 Correct 1 ms 384 KB Output is correct
59 Correct 1 ms 384 KB Output is correct
60 Correct 0 ms 384 KB Output is correct
61 Correct 1 ms 384 KB Output is correct
62 Correct 1 ms 384 KB Output is correct
63 Correct 0 ms 384 KB Output is correct
64 Correct 0 ms 384 KB Output is correct
65 Correct 0 ms 384 KB Output is correct
66 Correct 0 ms 384 KB Output is correct
67 Correct 0 ms 384 KB Output is correct
68 Correct 1 ms 384 KB Output is correct
69 Correct 1 ms 384 KB Output is correct
70 Correct 0 ms 384 KB Output is correct
71 Correct 1 ms 384 KB Output is correct
72 Correct 0 ms 384 KB Output is correct