Submission #850054

#	Time	Username	Problem	Language	Result	Execution time	Memory
850054		dshfjka	Type Printer (IOI08_printer)	C++14	100 / 100	998 ms	57788 KiB

printer

#include <bits/stdc++.h>
#define LL long long
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{
		
		int child[26];
	};
	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[s[depth]-'a']){
			t[pos].child[s[depth]-'a']=t.size();
			t.emplace_back();
		}
		insert(depth+1,t[pos].child[s[depth]-'a'],s);
		dp[pos]=max(dp[pos],dp[t[pos].child[s[depth]-'a']]+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,ket=-1;
		for(int i=0;i<cnt[pos];i++)v.push_back('P');
		if(status==1)
		{
			for(int a=0;a<26;a++)
			{
				if(t[pos].child[a])
				{
					if(dp[t[pos].child[a]]>maks)
					{
						maks=dp[t[pos].child[a]];
						ket=a;
					}
				}
			}
		}
	//	printf("maks=%d dan ket=%c\n",maks,ket+'a');
		for(int a=0;a<26;a++)
		{
			
			if(t[pos].child[a] && ket!=a)
			{
				masuk=1;
			//	printf("MASUK dengan %c \n",a+'a');
				masuk=1;
				v.push_back(a+'a');
				query(t[pos].child[a],0);
				v.push_back('-');
			}
			
		}
		if(status && ket!=-1)
		{
			masuk=1;
			v.push_back(ket+'a');
			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:20:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   20 |   if(depth==s.length())
      |      ~~~~~^~~~~~~~~~~~
printer.cpp: In member function 'void Trie::query(int, bool)':
printer.cpp:37:8: warning: variable 'masuk' set but not used [-Wunused-but-set-variable]
   37 |   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: 10 / 10