oj.uz

Submission #784714

# Submission time Handle Problem Language Result Execution time Memory
784714 2023-07-16T12:48:54 Z kshitij_sodani Park (JOI17_park) C++14
77 / 100
 184 ms 612 KB 
#include "park.h"
#include <bits/stdc++.h>
using namespace std;
#define a first
#define b second
#define pb push_back
typedef long long llo;
#define endl '\n'

int query(int x,int y,int Place[]){
	return Ask(min(x,y),max(x,y),Place);
}
static int cur[1501];
vector<int> adj[1501];
int vis[1501];
int par3[1501];
vector<int> ss;
void dfs(int no,int par=-1){
	ss.pb(no);
	for(auto j:adj[no]){
		if(j!=par){
			dfs(j,no);
		}
	}
}

int n;
vector<int> kk;
int xa;
bool cmp(int aa,int bb){
	if(aa==bb){
		return false;
	}
	for(int i=0;i<n;i++){
		cur[i]=0;
	}
	for(auto j:kk){
		cur[j]=1;
	}
	cur[xa]=1;
	cur[aa]=0;
	if(query(min(xa,bb),max(xa,bb),cur)==1){
		return false;
	}
	else{
		return true;
	}
}
int val[1501];
vector<int> ee;
void dfs3(int no,int par=-1){
	ee.pb(no);
	for(auto j:adj[no]){
		if(j!=par and val[j]==1){
			dfs3(j,no);
		}
	}
}
vector<pair<int,int>> ans;
void solve(int i,vector<int> tt){
	if(tt.size()==0){
		return;
	}
	for(int j=0;j<n;j++){
		val[j]=0;
	}
	for(auto j:tt){
		val[j]=1;
	}
	ee.clear();
	dfs3(tt[0]);
	for(int j=0;j<n;j++){
		cur[j]=0;
	}
	for(auto j:ee){
		cur[j]=1;
	}
	cur[i]=1;
	if(query(i,tt[0],cur)==1){
		int low=-1;
		for(int j=19;j>=0;j--){
			if(low+(1<<j)<ee.size()){
				for(int ii=0;ii<ee.size();ii++){
					if(ii<=(low+(1<<j))){
						cur[ss[ii]]=1;
					}
					else{
						cur[ss[ii]]=0;
					}
				}
				if(query(i,ee[0],cur)==0){
					low+=(1<<j);
				}
			}
		}
		low++;
		int x=ee[low];
		ans.pb({x,i});
		vector<int> mm;
		
		for(auto j:adj[x]){
			if(val[j]==1){
				mm.pb(j);
			}
		}
		val[x]=0;
		vector<vector<int>> za;
		for(auto j:mm){
			ee.clear();
			dfs3(j);
			za.pb(ee);
		}
		for(auto j:za){
			solve(i,j);
		}
	}
	else{
		return;
	}



}

void Detect(int t, int nn) {
	int i;
	n=nn;
	if(t==1){
		for(int i=0;i<n;i++){
			for(int j=i+1;j<n;j++){
				for(int x=0;x<n;x++){
					cur[x]=0;
				}
				cur[i]=1;
				cur[j]=1;
				if(query(i,j,cur)==1){
					Answer(i,j);
				}
			}
		}
		return;
	}
	vis[0]=1;
	for(int i=1;i<n;i++){
		if(vis[i]==0){
			ss.clear();
			dfs(0);
			for(int j=0;j<n;j++){
				cur[j]=1;
			}
			int low=-1;
			for(int j=19;j>=0;j--){
				if(low+(1<<j)<ss.size()){
					for(int ii=0;ii<ss.size();ii++){
						if(ii<=(low+(1<<j))){
							cur[ss[ii]]=1;
						}
						else{
							cur[ss[ii]]=0;
						}
					}
				/*	if(i==2 and low+(1<<j)==0){
						for(int jj=0;jj<n;jj++){
							cout<<cur[jj]<<",,";
						}
						cout<<endl;
						cout<<query(0,i,cur)<<endl;

					}*/
					if(query(0,i,cur)==0){
						low+=(1<<j);
					}
				}
			}
			low++;
			int x=ss[low];
		/*	for(auto  j:ss){
				cout<<j<<"::";
			}
			cout<<low<<"?"<<endl;
			cout<<endl;
*/
			vector<int> tt;
			vis[i]=1;
			for(int j=0;j<n;j++){
				if(vis[j]==0){
					tt.pb(j);
				}
			}
			for(int j=0;j<n;j++){
				cur[j]=0;
			}
			for(int j=0;j<=low;j++){
				cur[ss[j]]=1;
			}
			cur[i]=1;
			low=-1;
		//	cout<<22<<endl;


			
			kk.clear();
			

			while(true){
				for(int j=19;j>=0;j--){
					if(low+(1<<j)<tt.size()){
						for(int ii=0;ii<tt.size();ii++){
							if(ii<=(low+(1<<j))){
								cur[tt[ii]]=0;
							}
							else{
								cur[tt[ii]]=1;
							}
						}
						for(auto ii:kk){
							cur[ii]=1;
						}
					/*	cout<<33<<endl;
						for(int jj=0;jj<n;jj++){
							cout<<cur[jj]<<":";
						}
						cout<<endl;*/
						if(query(0,i,cur)==1){
							low+=(1<<j);
						}
					}
				}
				//from prev to low nothing is there
				//low+1 is there
				if(low+1==tt.size()){
					break;
				}
				low++;
				kk.pb(tt[low]);
				//low+1 must be there
			}
		//	cout<<44<<endl;
			//you need to sort elements of kk between x and i
			for(auto j:kk){
				vis[j]=1;
			}
			xa=x;
			sort(kk.begin(),kk.end(),cmp);
			
			kk.pb(i);
		/*	cout<<x<<",";
			for(auto  j:kk){
				cout<<j<<",";
			}
			cout<<endl;*/
			for(auto j:kk){
				adj[x].pb(j);
				par3[j]=x;
				adj[j].pb(x);
				x=j;
			}
		}
	}
	for(int i=1;i<n;i++){
		for(auto j:adj[par3[i]]){
			if(j==i){
				continue;
			}
			ss.clear();
			dfs(j,par3[i]);
			solve(i,ss);
		}
	}
	for(int i=0;i<n;i++){
		for(auto j:adj[i]){
			if(i>j){
				continue;
			}
			//cout<<i<<":"<<j<<endl;
			Answer(min(i,j),max(i,j));
		}
	}
	for(auto j:ans){
	//	cout<<j.a<<"::"<<j.b<<endl;
		Answer(min(j.a,j.b),max(j.a,j.b));
	}

}

Compilation message

park.cpp: In function 'void solve(int, std::vector<int>)':
park.cpp:82:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |    if(low+(1<<j)<ee.size()){
      |       ~~~~~~~~~~^~~~~~~~~~
park.cpp:83:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   83 |     for(int ii=0;ii<ee.size();ii++){
      |                  ~~^~~~~~~~~~
park.cpp: In function 'void Detect(int, int)':
park.cpp:153:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  153 |     if(low+(1<<j)<ss.size()){
      |        ~~~~~~~~~~^~~~~~~~~~
park.cpp:154:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  154 |      for(int ii=0;ii<ss.size();ii++){
      |                   ~~^~~~~~~~~~
park.cpp:207:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  207 |      if(low+(1<<j)<tt.size()){
      |         ~~~~~~~~~~^~~~~~~~~~
park.cpp:208:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  208 |       for(int ii=0;ii<tt.size();ii++){
      |                    ~~^~~~~~~~~~
park.cpp:231:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  231 |     if(low+1==tt.size()){
      |        ~~~~~^~~~~~~~~~~
park.cpp:126:6: warning: unused variable 'i' [-Wunused-variable]
  126 |  int i;
      |      ^

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 4 ms 340 KB Output is correct
3 Correct 5 ms 340 KB Output is correct
4 Correct 5 ms 376 KB Output is correct
5 Correct 4 ms 340 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 118 ms 520 KB Output is correct
2 Correct 114 ms 536 KB Output is correct
3 Correct 111 ms 540 KB Output is correct
4 Correct 143 ms 524 KB Output is correct
5 Correct 136 ms 612 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 139 ms 468 KB Output is correct
2 Correct 158 ms 468 KB Output is correct
3 Correct 152 ms 600 KB Output is correct
4 Correct 140 ms 468 KB Output is correct
5 Correct 150 ms 480 KB Output is correct
6 Correct 160 ms 468 KB Output is correct
7 Correct 142 ms 496 KB Output is correct
8 Correct 147 ms 464 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 72 ms 456 KB Output is correct
2 Correct 184 ms 504 KB Output is correct
3 Correct 171 ms 592 KB Output is correct
4 Correct 151 ms 504 KB Output is correct
5 Correct 155 ms 472 KB Output is correct
6 Correct 148 ms 504 KB Output is correct
7 Correct 112 ms 560 KB Output is correct
8 Correct 142 ms 584 KB Output is correct
9 Correct 143 ms 512 KB Output is correct
10 Correct 142 ms 476 KB Output is correct
11 Correct 159 ms 476 KB Output is correct
12 Correct 150 ms 612 KB Output is correct
13 Correct 136 ms 484 KB Output is correct
14 Correct 151 ms 496 KB Output is correct
15 Correct 119 ms 524 KB Output is correct
16 Correct 149 ms 456 KB Output is correct
17 Correct 161 ms 548 KB Output is correct
18 Correct 136 ms 500 KB Output is correct
19 Correct 133 ms 468 KB Output is correct
20 Correct 158 ms 512 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 124 ms 480 KB Wrong Answer[4]
2 Halted 0 ms 0 KB -