Submission #477856

#	Time	Username	Problem	Language	Result	Execution time	Memory
477856		starplat	Type Printer (IOI08_printer)	C++14	0 / 100	1098 ms	86504 KiB

printer

#include <bits/stdc++.h>
using namespace std;
vector<string> tmp,v,u;
vector<char> order,ans;
int n,mxlen,ct,vis[5000005];
string s,mxs;
struct node{
	int word,ac[30];
}trie[5000005];
void add(string x)
{
	int curr=0;
	for (int i=0;i<x.length();i++){
		if (!trie[curr].ac[s[i]-'a']) trie[curr].ac[s[i]-'a']=++ct;
		curr=trie[curr].ac[s[i]-'a'];
	}
	trie[curr].word=1;
}
void dfs(int curr,char c)
{
	if (curr==0) dfs(trie[curr].ac[c-'a'],c);
	else {
		ans.push_back(c);
		if (trie[curr].word) ans.push_back('P');
		for (int i=0;i<26;i++){
			if (trie[curr].ac[i]){
				dfs(trie[curr].ac[i],char(i+'a'));
			}
		}
		ans.push_back('-');
	}
}
void final(int curr,char c,int lvl,bool ok=0)
{
	//cout<<curr<<" "<<c<<" "<<lvl<<" "<<ok<<"\n";
	if (curr==0) final(trie[curr].ac[c-'a'],c,lvl+1,0);
	else {
		ans.push_back(c);
		vis[curr]=1;
		if (trie[curr].word) ans.push_back('P');
		for (int i=0;i<26;i++){
			if (vis[trie[curr].ac[i]]) continue;
			if (!trie[curr].ac[i]) continue;
			if (ok) final(trie[curr].ac[i],char(i+'a'),lvl+1,1);
			else {
				if (!ok&&mxs[lvl]==char(i+'a')) continue;
				final(trie[curr].ac[i],char(i+'a'),lvl+1,1);
			}
		}
		if (mxs[lvl]!=' '&&!ok) {
			//cout<<c<<" "<<lvl<<"\n";
			if (!vis[trie[curr].ac[mxs[lvl]-'a']])
			final(trie[curr].ac[mxs[lvl]-'a'],mxs[lvl],lvl+1,0);
		}
		ans.push_back('-');
	}
}
int main()
{
	cin>>n;
	for (int i=0;i<n;i++){
		cin>>s;
		if (s.length()>mxlen) mxlen=s.length(),mxs=s;
		add(s);
		tmp.push_back(s);
	}
	//cout<<ct<<"\n";
	mxs+=' ';
	for (string i:tmp) if (i[0]!=mxs[0]) order.push_back(i[0]);
	dfs(0,order[0]);
	for (int i=1;i<order.size();i++) if (order[i]!=order[i-1]) dfs(0,order[i]);
	final(0,mxs[0],0);
	cout<<ans.size()-mxlen<<"\n";
	for (int i=0;i<ans.size()-mxlen;i++) cout<<ans[i]<<"\n";
}

Compilation message (stderr)

printer.cpp: In function 'void add(std::string)':
printer.cpp:13:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |  for (int i=0;i<x.length();i++){
      |               ~^~~~~~~~~~~
printer.cpp: In function 'int main()':
printer.cpp:63:17: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   63 |   if (s.length()>mxlen) mxlen=s.length(),mxs=s;
      |       ~~~~~~~~~~^~~~~~
printer.cpp:71:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   71 |  for (int i=1;i<order.size();i++) if (order[i]!=order[i-1]) dfs(0,order[i]);
      |               ~^~~~~~~~~~~~~
printer.cpp:74:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   74 |  for (int i=0;i<ans.size()-mxlen;i++) cout<<ans[i]<<"\n";
      |               ~^~~~~~~~~~~~~~~~~

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