Submission #930251

#	Time	Username	Problem	Language	Result	Execution time	Memory
930251		Aiperiii	Type Printer (IOI08_printer)	C++14	100 / 100	135 ms	95684 KiB

printer

#include <bits/stdc++.h>
#define int long long
#define ff first
#define ss second
#define all(x) x.begin(),x.end()
#define pb push_back
using namespace std;
const int N=1e6;
struct Trie{
    int out=0,last=0;
    map <char,int> mp;
};
Trie t[N];
int cnt=0;
void insert(string s){
    int p=0;
    for(int i=0;i<s.size();i++){
        if(t[p].mp[s[i]]==0){
            cnt++;
            t[p].mp[s[i]]=cnt;
        }
        p=t[p].mp[s[i]];
    }
    t[p].out=1;
}
void mark_last(string s){
    int p=0;
    for(int i=0;i<s.size();i++){
        p=t[p].mp[s[i]];
        t[p].last=1;
    }
}
vector <char> ans;
void get(int p,char c){
    if(p!=0)ans.pb(c);
    if(t[p].out==1)ans.pb('P');
    for(auto i : t[p].mp){
        if(!t[i.ss].last)get(i.ss,i.ff);
    }
    for(auto i : t[p].mp){
        if(t[i.ss].last)get(i.ss,i.ff);
    }
    ans.pb('-');
}

signed main(){
    ios_base::sync_with_stdio();
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    vector <string> s(n);
    for(int i=0;i<n;i++){
        cin>>s[i];
    }
    string ls="";
    for(int i=0;i<s.size();i++){
        insert(s[i]);
        if(s[i].size()>ls.size()){
            ls=s[i];
        }
    }
    mark_last(ls);
    get(0,'S');
    while(ans.back()=='-')ans.pop_back();
    cout<<ans.size()<<"\n";
    for(auto x : ans){
        cout<<x<<"\n";
    }
}

/*

 */

Compilation message (stderr)

printer.cpp: In function 'void insert(std::string)':
printer.cpp:17:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   17 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
printer.cpp: In function 'void mark_last(std::string)':
printer.cpp:28:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~
printer.cpp: In function 'int main()':
printer.cpp:56:18: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::__cxx11::basic_string<char> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |     for(int i=0;i<s.size();i++){
      |                 ~^~~~~~~~~

• 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