Submission #850051

#	Time	Username	Problem	Language	Result	Execution time	Memory
850051		dshfjka	Type Printer (IOI08_printer)	C++14	90 / 100	1056 ms	91044 KiB

printer

#include <bits/stdc++.h>
#define LL long long
#define fi first
#define se second
using namespace std;
vector<char>v;
int dp[500001];
// kata terpanjang dimaksukin nanti aja bos
int cnt[500001];
struct Trie{
	int masuk=0;
	struct node{
		
		unordered_map<char,int>child;
	};
	vector<node>t;
	Trie(){
		t.emplace_back();
	}
	void insert(int depth ,int pos,const string& s)
	{
		if(depth==s.length())
		{
			cnt[pos]++;
			return;
		}
		if(!t[pos].child.count(s[depth])){
			t[pos].child[s[depth]]=t.size();
			t.emplace_back();
		}
		int jeje=t[pos].child[s[depth]];
		insert(depth+1,jeje,s);
		dp[pos]=max(dp[pos],dp[jeje]+1);
	//	t[pos].cnt++;
	}
	void query( int pos, bool status)
	{
//		if(++masuk ==60)exit(0);
	//	cout<<"pos :"<<pos<<"  status :"<<status<<endl;
		bool masuk=0;
		int maks=-1;
		char ket;
		for(int i=0;i<cnt[pos];i++)v.push_back('P');
		if(status==1)
		{
			for(pair<char,int>a:t[pos].child)
			{			
				if(dp[a.se]>maks)
				{
					maks=dp[a.se];
					ket=a.fi;
				}
			}
		}
	//	printf("maks=%d dan ket=%c\n",maks,ket+'a');
		for(pair<char,int>a:t[pos].child)
		{
			
			if(ket!=a.fi)
			{
			//	printf("MASUK dengan %c \n",a+'a');
				
				v.push_back(a.fi);
				query(a.se,0);
				v.push_back('-');
			}
			
		}
		if(status && maks!=-1)
		{
			
			v.push_back(ket);
			query(t[pos].child[ket],1);
		}
		
	}
};
int main()
{
	 ios::sync_with_stdio(false);
	 cin.tie(0);
	 cout.tie(0);
	int n;
	cin>>n;
	Trie trie;
	for(int a=1;a<=n;a++)
	{
		string x;
		cin>>x;
		trie.insert(0,0,x);
	}
	trie.query(0,1);
	cout<<v.size()<<endl;
	for(char a:v)cout<<a<<endl;
}

Compilation message (stderr)

printer.cpp: In member function 'void Trie::insert(int, int, const string&)':
printer.cpp:22:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |   if(depth==s.length())
      |      ~~~~~^~~~~~~~~~~~
printer.cpp: In member function 'void Trie::query(int, bool)':
printer.cpp:40:8: warning: unused variable 'masuk' [-Wunused-variable]
   40 |   bool masuk=0;
      |        ^~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 0 / 10