Submission #855092

#	Time	Username	Problem	Language	Result	Execution time	Memory
855092		vjudge1	Type Printer (IOI08_printer)	C++14	100 / 100	1000 ms	56888 KiB

printer

#include<bits/stdc++.h>
#define _for(i,a,b) for(int i=a;i<=b;i++)
using namespace std;
const int N=5e5+5,M=31;
int A[N][M],num=0,maxn=0;
bool B[N];
string maxs;
void jr(string &s)
{
	int l=s.size(),now=0;
	_for(i,0,l-1)
	{
		char x=s[i];
		if(!A[now][x-'a'])A[now][x-'a']=++num;
		now=A[now][x-'a'];
	}
	B[now]=1;
}
void ss(int now,string &ans,int d,bool pd)
{
	if(B[now])ans+='P';
	char x=maxs[d];
	_for(i,0,25)
	{
		if(pd&&i+'a'==x)continue;
		if(A[now][i])
		{
			ans+=(char)(i+'a');
			ss(A[now][i],ans,d+1,0);
			ans+='-';
		}
	}
	if(pd&&A[now][x-'a'])
	{
		ans+=x;
		ss(A[now][x-'a'],ans,d+1,1);
		ans+='-';
	}
}
int main()
{
	ios::sync_with_stdio(false),cin.tie(0);
	int n;
	cin>>n;
	_for(i,1,n)
	{
		string x;
		cin>>x;
		if(x.size()>maxn)maxn=x.size(),maxs=x;
		jr(x);
	}
	string ans="";
	ss(0,ans,0,1);
	int r=ans.size()-1;
	while(ans[r]=='-')r--;
	cout<<r+1<<endl;
	_for(i,0,r)cout<<ans[i]<<endl;
	return 0;
}

Compilation message (stderr)

printer.cpp: In function 'int main()':
printer.cpp:49:14: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   49 |   if(x.size()>maxn)maxn=x.size(),maxs=x;
      |      ~~~~~~~~^~~~~

• 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