oj.uz

Submission #423940

# Submission time Handle Problem Language Result Execution time Memory
423940 2021-06-11T14:19:34 Z errorgorn Chameleon's Love (JOI20_chameleon) C++17
0 / 100
 0 ms 328 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> same[1005];
int nxt[1005];

void Solve(int N) {
	n=N;
	
	//ok we just need to find stuff in the same arrays quickly
	//since we know where the males are, we can bsta the females
	
	rep(x,0,n){
		while (true){
			vector<int> v;
			rep(y,n,2*n){
				bool can=true;
				for (auto &it:same[x]) if (y==it) can=false;
				if (can) v.pub(y);
			}
			
			v.pub(x);
			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(x);
				if (Query(l)==sz(l)) v=r;
				else v=l;
			}
			
			same[x].pub(v[0]);
		}
	}
	
	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];
		}
		if (Query({x,same[x][0],same[x][2]})==1){
			nxt[x]=same[x][1];
		}
		if (Query({x,same[x][1],same[x][2]})==1){
			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
0 / 4.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 328 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 328 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -

Subtask #3
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 328 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 328 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -

Subtask #5
0 / 36.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 328 KB Wrong Answer [1]
2 Halted 0 ms 0 KB -