Submission #282939

#	Time	Username	Problem	Language	Result	Execution time	Memory
282939		tinjyu	Mechanical Doll (IOI18_doll)	C++14	0 / 100	139 ms	262148 KiB

doll

#include <iostream>
#include <vector>
#include "doll.h"
using namespace std;
int l[1000005],r[1000005],num[25],d[1000005],b[1000005],x1[1000005],x2[1000005],X[1000005],p=0,Y[1000005];
int qs(int s,int e){
	//cout<<s<<" "<<e<<endl;
	int l=s,r=e,mid=(d[l]+d[r])/2;
	while(l<=r)
	{
		while(d[l]<mid)l++;
		while(d[r]>mid)r--;
		if(l<=r)
		{
			swap(d[l],d[r]);
			swap(b[l],b[r]);
			l++;
			r--;
		}
	}
	if(s<r)qs(s,r);
	if(l<e)qs(l,e);
}
int find(int x){
	if(x==0)return 0;
	if(x<0)return 1;
	if(find(l[x])==0 && find(r[x])==0)
	{
		//cout<<"0 "<<l[x]<<" "<<r[x]<<endl;
		return 0;
	}
	else if(find(l[x])==0 && find(r[x])==1)
	{
		//cout<<"1 "<<l[x]<<" "<<r[x]<<endl;
		l[x]=0;
	}
	return 1;
 
}
int solve(int t){
	int e=p;
	//cout<<t<<" "<<p<<" "<<l[t]<<" "<<r[t]<<endl;
	if(l[t]>=1)
	{
		p++;
		x1[e]=p;
		solve(l[t]);
	}
	else x1[e]=l[t];
	if(r[t]>=1)
	{
		p++;
		x2[e]=p;
		solve(r[t]);
	}
	else x2[e]=r[t];
	//cout<<e<<" "<<x1[e]<<" "<<x2[e]<<endl;
	
	//for(int i=0;i<=p;i++)cout<<x1[i]<<" ";
	//cout<<endl;
	//for(int i=0;i<=p;i++)cout<<x2[i]<<" ";
	//cout<<endl;
}
void create_circuit(int M, std::vector<int> A) {
  int n = A.size(); 
  n++;
  A[n-1]=1;
  int t=1;
	while(t<n)
	{
		t*=2;
		p++;
	}
  std::vector<int> C(M + 1);
  C[0] = -1;
  for (int i = 1; i <= M; ++i) {
    C[i] = 1;
  }
  
	num[1]=-1;
	for(int i=1;i<=t+1;i++)
	{
		num[1]++;
		for(int j=1;j<=p+1;j++)
		{
			if(num[j]==2)
			{
				num[j]=0;
				num[j+1]++;
			}
			else break;
		}
		int q=1;
		for(int j=p;j>=1;j--)
		{
			d[i]+=q*num[j];
			q*=2;
		}
	}
	for(int i=t;i>=t-n+1;i--)b[i]=i-1;
	//for(int i=t-n+1;i<=t;i++)cout<<d[i]<<" "<<b[i]<<endl;
	//cout<<endl;
	qs(t-n+1,t);
	//for(int i=t-n+1;i<=t;i++)cout<<d[i]<<" "<<b[i]<<endl;
	for(int i=1;i<=t-1;i++)
	{
		l[i]=(i*2);
		r[i]=(i*2+1);
		if(i*2>t-1)l[i]=0;
		if(i*2+1>t-1)r[i]=0;
	}
	for(int i=t-n+1;i<=t;i++)
	{
		//cout<<(t+b[i])/2<<" ";
		if(b[i]%2==1)r[(t+b[i])/2]=A[i-(t-n)-1]*-1;
		else l[(t+b[i])/2]=A[i-(t-n)-1]*-1;
	}
	//cout<<endl;
	//for(int i=t/2;i<=t-1;i++)cout<<l[i]<<" "<<r[i]<<" ";
	//cout<<endl;
	find(1);
	//cout<<endl;
	//for(int i=1;i<t;i++)cout<<l[i]<<" "<<r[i]<<endl;
	//cout<<endl;
	p=1;
	solve(1);
	C[0]=-1;
	for(int i=0;i<=M;i++)C[i]=-1;
	//Y[t-1]=0;
	//for(int i=0;i<=p;i++)X[i]*=-1;
	//for(int i=0;i<=p;i++)Y[i]*=-1;
	std::vector<int> X(p), Y(p);
	for(int i=0;i<p;i++)
	{
		X[i]=x1[i+1]*-1;
		if(X[i]==0)X[i]=-1;
	}
	//cout<<endl;
	for(int i=0;i<p;i++)
	{
		Y[i]=x2[i+1]*-1;
		if(Y[i]==0)Y[i]=-1;
	}
	//cout<<endl;
	//cout<<p<<endl;
	Y[p-1]=0;
	//for(int i=0;i<p;i++)cout<<X[i]<<" ";
	//cout<<endl;
	//for(int i=0;i<p;i++)cout<<Y[i]<<" ";
	//cout<<endl;
	
	answer(C, X, Y);
}

Compilation message (stderr)

doll.cpp: In function 'int qs(int, int)':
doll.cpp:23:1: warning: no return statement in function returning non-void [-Wreturn-type]
   23 | }
      | ^
doll.cpp: In function 'int solve(int)':
doll.cpp:63:1: warning: no return statement in function returning non-void [-Wreturn-type]
   63 | }
      | ^

• Subtask 1: 0 / 2
• Subtask 2: 0 / 4
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 18
• Subtask 6: 0 / 56