oj.uz

Submission #428115

# Submission time Handle Problem Language Result Execution time Memory
428115 2021-06-15T08:09:43 Z errorgorn Chameleon's Love (JOI20_chameleon) C++17
100 / 100
 65 ms 476 KB 
#include "chameleon.h"

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define ii pair<ll,ll>
#define fi first
#define se second
#define endl '\n'

#define puf push_front
#define pof pop_front
#define pub push_back
#define pob pop_back

#define rep(x,s,e) for (auto x=s-(s>e);x!=e-(s>e);s<e?x++:x--)
#define all(x) (x).begin(),(x).end()
#define sz(x) (int) (x).size()

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int n;

vector<int> ind_set[4];

vector<int> same[1005];
int nxt[1005];

set<int> test(int i,int pos){
	set<int> res;
	while (true){
		vector<int> v;
		for (auto &it:ind_set[i]) if (!res.count(it)) v.pub(it);
		
		if (v.empty()) break;
		
		v.pub(pos);
		if (Query(v)==sz(v)) break;
		v.pob();
		
		while (sz(v)!=1){
			vector<int> l,r;
			
			rep(x,0,sz(v)/2) l.pub(v[x]);
			rep(x,sz(v)/2,sz(v)) r.pub(v[x]);
			
			l.pub(pos);
			int val=Query(l);
			l.pob();
			
			if (val==sz(l)+1) v=r;
			else v=l;
		}
		
		res.insert(v[0]);
	}
	
	return res;
}

void Solve(int N) {
	n=N;
	
	vector<int> proc;
	rep(x,1,2*n+1) proc.pub(x);
	
	rep(x,0,sz(proc)) swap(proc[x],proc[rng()%(x+1)]);
	
	for (auto &x:proc){
		bool ins=false;
		
		rep(y,0,4){
			auto temp=test(y,x);
			for (auto &it:temp){
				//cout<<x<<" "<<it<<endl;
				same[it].pub(x);
				same[x].pub(it);
			}
			
			if (temp.empty() && !ins){
				ind_set[y].pub(x);
				ins=true;
			}
		}
	}
	
	memset(nxt,-1,sizeof(nxt));
	
	rep(x,1,2*n+1) if (sz(same[x])==3){
		if (Query({x,same[x][0],same[x][1]})==1){
			nxt[x]=same[x][2];
		}
		else if (Query({x,same[x][0],same[x][2]})==1){
			nxt[x]=same[x][1];
		}
		else {
			nxt[x]=same[x][0];
		}
	}
	
	rep(x,1,2*n+1){
		if (sz(same[x])==1){
			//cout<<x<<" "<<same[x][0]<<endl;
			if (x<same[x][0]) Answer(x,same[x][0]);
		}
		else{
			for (auto &it:same[x]) if (nxt[it]!=x && nxt[x]!=it){
				//cout<<x<<" "<<it<<endl;
				if (x<it) Answer(x,it);
			}
		}
	}
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 29 ms 476 KB Output is correct
4 Correct 26 ms 328 KB Output is correct
5 Correct 31 ms 384 KB Output is correct
6 Correct 26 ms 328 KB Output is correct
7 Correct 27 ms 360 KB Output is correct
8 Correct 34 ms 328 KB Output is correct
9 Correct 26 ms 328 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 328 KB Output is correct

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 1 ms 328 KB Output is correct
4 Correct 1 ms 328 KB Output is correct
5 Correct 1 ms 328 KB Output is correct
6 Correct 1 ms 328 KB Output is correct
7 Correct 1 ms 328 KB Output is correct
8 Correct 1 ms 328 KB Output is correct
9 Correct 1 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 328 KB Output is correct
12 Correct 2 ms 328 KB Output is correct
13 Correct 2 ms 456 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 2 ms 328 KB Output is correct
18 Correct 1 ms 328 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 65 ms 328 KB Output is correct
4 Correct 53 ms 472 KB Output is correct
5 Correct 63 ms 360 KB Output is correct
6 Correct 53 ms 364 KB Output is correct
7 Correct 55 ms 360 KB Output is correct
8 Correct 53 ms 364 KB Output is correct
9 Correct 63 ms 328 KB Output is correct

Subtask #5
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 328 KB Output is correct
2 Correct 1 ms 328 KB Output is correct
3 Correct 29 ms 476 KB Output is correct
4 Correct 26 ms 328 KB Output is correct
5 Correct 31 ms 384 KB Output is correct
6 Correct 26 ms 328 KB Output is correct
7 Correct 27 ms 360 KB Output is correct
8 Correct 34 ms 328 KB Output is correct
9 Correct 26 ms 328 KB Output is correct
10 Correct 1 ms 328 KB Output is correct
11 Correct 1 ms 328 KB Output is correct
12 Correct 1 ms 328 KB Output is correct
13 Correct 1 ms 328 KB Output is correct
14 Correct 1 ms 328 KB Output is correct
15 Correct 1 ms 328 KB Output is correct
16 Correct 1 ms 328 KB Output is correct
17 Correct 1 ms 328 KB Output is correct
18 Correct 1 ms 328 KB Output is correct
19 Correct 1 ms 328 KB Output is correct
20 Correct 1 ms 328 KB Output is correct
21 Correct 2 ms 328 KB Output is correct
22 Correct 2 ms 456 KB Output is correct
23 Correct 1 ms 328 KB Output is correct
24 Correct 1 ms 328 KB Output is correct
25 Correct 1 ms 328 KB Output is correct
26 Correct 2 ms 328 KB Output is correct
27 Correct 1 ms 328 KB Output is correct
28 Correct 1 ms 328 KB Output is correct
29 Correct 1 ms 328 KB Output is correct
30 Correct 65 ms 328 KB Output is correct
31 Correct 53 ms 472 KB Output is correct
32 Correct 63 ms 360 KB Output is correct
33 Correct 53 ms 364 KB Output is correct
34 Correct 55 ms 360 KB Output is correct
35 Correct 53 ms 364 KB Output is correct
36 Correct 63 ms 328 KB Output is correct
37 Correct 54 ms 328 KB Output is correct
38 Correct 26 ms 328 KB Output is correct
39 Correct 58 ms 328 KB Output is correct
40 Correct 59 ms 356 KB Output is correct
41 Correct 55 ms 360 KB Output is correct
42 Correct 36 ms 356 KB Output is correct
43 Correct 54 ms 328 KB Output is correct
44 Correct 55 ms 368 KB Output is correct
45 Correct 54 ms 364 KB Output is correct