oj.uz

Submission #594571

# Submission time Handle Problem Language Result Execution time Memory
594571 2022-07-12T17:02:32 Z Koosha_mv Park (JOI17_park) C++14
67 / 100
 387 ms 736 KB 
#include "park.h"
#include <bits/stdc++.h>
using namespace std;
#define dbgv(v) cout<<#v<<" = "; f(i,0,v.size()) cout<<v[i]<<" "; cout<<endl
#define dbga(a,x,y) cout<<#a<<" = "; f(i,x,y) cout<<a[i]<<" "; cout<<endl
#define erorp(x) cout<<#x<<"={"<<x.F<<" , "<<x.S<<"}"<<endl
#define eror(x) cout<<#x<<'='<<(x)<<endl
#define f_(i,a,b) for(int i=a;i>=b;i--)
#define f(i,a,b) for(int i=a;i<b;i++)
#define nb(x) __builtin_popcount(x)
#define all(v) v.begin(),v.end()
#define bit(n,k) (((n)>>(k))&1)
#define Add(x,y) x=(x+y)%mod
#define maxm(a,b) a=max(a,b)
#define minm(a,b) a=min(a,b)
#define lst(x) x[x.size()-1]
#define sz(x) int(x.size())
#define mp make_pair
#define ll long long
#define pb push_back
#define S second
#define F first

const int N=1505;

mt19937 rng(time(nullptr));

int n,mark[N],place[N];
vector<int> g[N];

void reset(){
	f(i,0,n) place[i]=0;
}
int rand(int l,int r){
	uniform_int_distribution<int> rnd(l,r-1);
	return rnd(rng);
}
int ask(int s,int t){
	if(s>t) swap(s,t);
	int res=Ask(s,t,place);
	return res;
}
void path(int s,int t,vector<int> vec){
	if(vec.size()==0){
		if(s>t) swap(s,t);
		//cout<<s<<" -> "<<t<<endl;
		Answer(s,t);
		g[s].pb(t);
		g[t].pb(s);
		return ;
	}
	int id=vec[rand(0,vec.size())];
	reset();
	place[s]=place[t]=1;
	for(auto x : vec){
		place[x]=1;
	}
	vector<int> L,R;
	for(auto x : vec){
		if(x==id) continue ;
		place[x]=0;
		if(ask(s,id)==0) L.pb(x);
		else R.pb(x);
		place[x]=1;
	}
	path(s,id,L);
	path(id,t,R);
}
void dfs1(int u,int p,vector<int> &vec){
	vec.pb(u);
	for(auto v : g[u]){
		if(v==p) continue ;
		dfs1(v,u,vec);
	}
}
void Detect(int T, int _n) {
	n=_n;
	mark[0]=1;
	vector<int> B(1);
	f(i,1,n){
		if(mark[i]) continue ;
		vector<int> vec,A;
		mark[i]=1;
		f(j,0,n) if(!mark[j]) A.pb(j);
		int l=-1,r=A.size();
		while(1){
			while(l+1<r){
				int mid=(l+r)>>1;
				reset();
				vector<int> p;
				dfs1(0,0,p);
				place[0]=place[i]=1;
				for(auto x : p) place[x]=1;
				f(j,0,mid) place[A[j]]=1;
				f(j,mid,A.size()) place[A[j]]=mark[A[j]];
				if(ask(0,i)==0){
					l=mid;
				}
				else{
					r=mid;
				}
				//cout<<l<<" "<<r<<endl;
			}
			if(l==-1) break;
			mark[A[l]]=1;
			vec.pb(A[l]);
			r=l,l=-1;
		}
		reset();
		vector<int> p;
		dfs1(0,0,p);
		place[i]=1;
		for(auto x : vec) place[x]=1;
		l=0,r=p.size();
		while(l+1<r){
			int mid=(l+r)>>1;
			f(j,0,p.size()) place[p[j]]=(j<mid);
			if(ask(0,i)==0) l=mid;
			else r=mid;
		}
		//cout<<endl<<i<<" -> "<<endl;
		//eror(p[l]);
		//dbgv(p);
		//dbgv(vec);
		path(p[l],i,vec);
	}
}
/*
1
5 4
0 3
3 4
3 1
0 2

1 
7 6
0 3
0 5
3 4
3 1
5 2
5 6

*/

Compilation message

park.cpp: In function 'void Detect(int, int)':
park.cpp:9:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 | #define f(i,a,b) for(int i=a;i<b;i++)
......
   95 |     f(j,mid,A.size()) place[A[j]]=mark[A[j]];
      |       ~~~~~~~~~~~~~~           
park.cpp:95:5: note: in expansion of macro 'f'
   95 |     f(j,mid,A.size()) place[A[j]]=mark[A[j]];
      |     ^
park.cpp:9:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    9 | #define f(i,a,b) for(int i=a;i<b;i++)
......
  117 |    f(j,0,p.size()) place[p[j]]=(j<mid);
      |      ~~~~~~~~~~~~              
park.cpp:117:4: note: in expansion of macro 'f'
  117 |    f(j,0,p.size()) place[p[j]]=(j<mid);
      |    ^

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 340 KB Wrong Answer[6]
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 247 ms 540 KB Output is correct
2 Correct 277 ms 672 KB Output is correct
3 Correct 235 ms 576 KB Output is correct
4 Correct 220 ms 524 KB Output is correct
5 Correct 228 ms 588 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 337 ms 564 KB Output is correct
2 Correct 348 ms 468 KB Output is correct
3 Correct 353 ms 504 KB Output is correct
4 Correct 347 ms 496 KB Output is correct
5 Correct 360 ms 472 KB Output is correct
6 Correct 341 ms 468 KB Output is correct
7 Correct 348 ms 476 KB Output is correct
8 Correct 349 ms 496 KB Output is correct

Subtask #4
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 175 ms 436 KB Output is correct
2 Correct 363 ms 468 KB Output is correct
3 Correct 375 ms 472 KB Output is correct
4 Correct 321 ms 472 KB Output is correct
5 Correct 348 ms 648 KB Output is correct
6 Correct 306 ms 564 KB Output is correct
7 Correct 278 ms 728 KB Output is correct
8 Correct 343 ms 504 KB Output is correct
9 Correct 318 ms 712 KB Output is correct
10 Correct 326 ms 532 KB Output is correct
11 Correct 333 ms 544 KB Output is correct
12 Correct 345 ms 588 KB Output is correct
13 Correct 272 ms 520 KB Output is correct
14 Correct 365 ms 612 KB Output is correct
15 Correct 270 ms 596 KB Output is correct
16 Correct 362 ms 736 KB Output is correct
17 Correct 178 ms 604 KB Output is correct
18 Correct 329 ms 532 KB Output is correct
19 Correct 273 ms 624 KB Output is correct
20 Correct 341 ms 488 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Incorrect 387 ms 468 KB Wrong Answer[6]
2 Halted 0 ms 0 KB -