oj.uz

답안 #693717

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
693717 2023-02-03T07:23:29 Z amirhoseinfar1385 Swap (BOI16_swap) C++17
0 / 100
 0 ms 212 KB 
#include<bits/stdc++.h>
using namespace std;
vector<vector<int>>dp,mergy;
vector<int>all;
int n;

int calmina(int a,int b,int pi,int pii){
	int wi=upper_bound(mergy[pi].begin(),mergy[pi].end(),min(a,b))-mergy[pi].begin();
	int wii=upper_bound(mergy[pii].begin(),mergy[pii].end(),min(a,b))-mergy[pii].begin();
	if(dp[pi][wi]<dp[pii][wii]){
		if(b==min(a,b)){
			return dp[pi][wi];
		}
		else{
			int z=upper_bound(mergy[pii].begin(),mergy[pii].end(),b)-mergy[pii].begin();
			return dp[pii][z];
		}
	}	
	else{
		if(b==min(a,b)){
			return dp[pii][wii];
		}
		else{
			int z=upper_bound(mergy[pi].begin(),mergy[pi].end(),b)-mergy[pi].begin();
			return dp[pi][z];
		}
	}
}

vector<int>merge(vector<int>a,vector<int>b){
	int i=0,j=0;
	vector<int>ret;
	while(i<(int)a.size()&&j<(int)b.size()){
		if(a[i]<b[j]){
			ret.push_back(a[i]);
			i++;
		}
		else{
			ret.push_back(b[j]);
			j++;
		}
	}
	while(i<(int)a.size()){
		ret.push_back(a[i]);
		i++;
	}
	while(j<(int)b.size()){
		ret.push_back(b[j]);
		j++;
	}
	return ret;
}

void solve(int u){
	if(u==0){
		return ;
	}
	if(u*2>=n+1){
		dp[u]={u,u};
		mergy[u].push_back(u);
		return solve(u-1);
	}
	if(u*2==n)
	{
		mergy[u]=merge(mergy[(u<<1)],{u});
		dp[u].resize((int)mergy[u].size()+1);
		for(int j=0;j<(int)dp[u].size();j++){
			if(j==(int)dp[u].size()-1){
				dp[u][j]=dp[u*2][j-1];
			}
			else{
				if(mergy[u][j]<all[u*2]){
					dp[u][j]=u;
					continue;
				}
				int p=upper_bound(mergy[u*2].begin(),dp[u*2].end(),mergy[u][j])-mergy[u*2].begin();
				dp[u][j]=dp[u*2][p];
			}
		}
		return solve(u-1);
	}
	mergy[u]=merge(mergy[(u<<1)],{u});
	mergy[u]=merge(mergy[u],mergy[(u<<1)^1]);
	dp[u].resize((int)mergy[u].size()+1);
	for(int j=0;j<(int)dp[u].size();j++){
		if(j==(int)dp[u].size()-1){
			dp[u][j]=calmina(max(all[u*2+1],all[u*2]),mergy[u].back()+2,u*2,u*2+1);
		}
		else{
			if(mergy[u][j]-1<all[u*2]&&mergy[u][j]-1<all[u*2+1]){
				dp[u][j]=u;
				continue;
			}
			dp[u][j]=calmina(max(all[u*2],all[u*2+1]),mergy[u][j]-1,u*2,u*2+1);
		}
	}
	return solve(u-1);
}
vector<int>res;

void calres(int u){
	if(u>n){
		return ;
	}
	if(u*2>n){
		return calres(u+1);
	}
	if(u*2==n){
		if(all[u]<all[u*2]){
			return calres(u+1);
		}
		else{
			swap(all[u],all[u*2]);
			return calres(u+1);
		}
	}
	int p=upper_bound(mergy[u].begin(),mergy[u].end(),all[u])-mergy[u].begin();
	if(dp[u][p]==u){
		return calres(u+1);
	}
	int z=lower_bound(mergy[u*2].begin(),mergy[u*2].end(),dp[u][p])-mergy[u*2].begin();
	if(z!=(int)mergy[u*2].size()&&mergy[u*2][z]==dp[u][p]){
		swap(all[u],all[u*2]);
		if(all[u]>all[u*2+1]){
			swap(all[u],all[u*2+1]);
		}
		return calres(u+1);
	}
	swap(all[u],all[u*2+1]);
	return calres(u+1);
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	res.resize(n+1);
	all.resize(n+1);
	mergy.resize(n+1);
	dp.resize(n+1);
	for(int i=1;i<=n;i++){
		cin>>all[i];
	}
	solve(n);
	/*for(int i=1;i<=n;i++){
		for(auto x:dp[i]){
			cout<<x<<" ";
		}
		cout<<"\n";
	}
	cout<<"\n";*/
	calres(1);
	for(int i=1;i<=n;i++){
		cout<<all[i]<<" ";
	}
	cout<<"\n";
}

Subtask #1
0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 27.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 32.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 0 ms 212 KB Output isn't correct
2 Halted 0 ms 0 KB -