Submission #1290114

#	Time	Username	Problem	Language	Result	Execution time	Memory
1290114		Faisal_Saqib	Type Printer (IOI08_printer)	C++20	100 / 100	609 ms	49976 KiB

printer

/* 
    VENI VIDI VICI
*/
// #ifdef ONLINE_JUDGE
#include <bits/stdc++.h>

using namespace std;

#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(),x.end()
#define rall(x) x.rbegin(),x.rend()

mt19937 RNG(chrono::steady_clock::now().time_since_epoch().count());  

using i128 = __int128;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
using str = string;
using pi = pair<int, int>;
using pl = pair<ll, ll>;

using vi = vector<int>;
using vl = vector<ll>;
using vpi = vector<pair<int, int>>;
using vvi = vector<vi>;
using sll = set<ll>;

template<class T>
istream& operator>>(istream& is, vector<T>& v) {
    for(auto &i:v) is>>i;
    return is;
}
template<class T1,class T2>
istream& operator>>(istream& is, pair<T1,T2>& p) {
    is>>p.fi>>p.se;
    return is;
}
template<class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
    for(const auto &i:v) os<<i<<' ';
    return os;
}
template<class T1,class T2>
ostream& operator<<(ostream& os, const pair<T1,T2>& p) {
    os<<p.fi<<' '<<p.se; return os;
}
void pyn(bool x)
{
    cout<<(x?"YES":"NO")<<endl;
}
void pYN(bool x)
{
    cout<<(x?"Yes":"No")<<endl;
}
void pAB(bool x)
{
    cout<<(x?"Alice":"Bob")<<endl;
}
ll powmod(ll a,ll b,ll modulo)
{
  if(b==0){
    return 1;
  }
  ll temp=powmod(a,b/2,modulo);
  if(b%2==0){
    return (temp*temp)%modulo;
  }
  else{
    return (a*((temp*temp)%modulo))%modulo;
  }
}
bool Prime(ll n){
    for (ll i = 2; i*i <= n; i++)
        if (n % i == 0)
            return false;
    return (n>1);
}
void readIO() {
    // freopen("input.txt", "r", stdin);
    // freopen("output.txt", "w", stdout);
}
// #endif
void solve();
int main() {
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);

    readIO();

    int uwu=1;

    // cin>>uwu;

    for(int tc=1;tc<=uwu;tc++) {
        // cout<<"Case #"<<tc<<": ";
        solve();
    }
    return 0;
}
const int N=1e6+100;
int nxt[N][26],lst=0,h[N];
bool ed[N];
void add(string s)
{
    // cout<<"insert "<<s<<endl;
    int rt=0;
    for(int i=0;i<s.size();i++)
    {
        int j=s[i]-'a';
        if(nxt[rt][j]==0)
        {
            nxt[rt][j]=++lst;
        }
        // cout<<rt<<' ';
        rt=nxt[rt][j];
        h[rt]=max(h[rt],(int)s.size()-i);
    }
    ed[rt]=1;
    // cout<<rt<<endl;
}
vector<char> ans;
void print(int rt,bool keep)
{
    // cout<<"At "<<rt<<endl;
    if(ed[rt])
    {
        // cout<<'P'<<endl;
        ans.pb(char('P'));

    }
    int mx=0,v=-1;
    for(int j=0;j<26;j++)
    {
        if(h[nxt[rt][j]]>mx and nxt[rt][j]!=0)
        {
            mx=h[nxt[rt][j]];
            v=j;
        }
    }
    if(v==-1)return;
    // cout<<"At "<<rt<<' '<<keep<<' '<<mx<<' '<<v<<endl;
    for(int j=0;j<26;j++)
    {
        if(h[nxt[rt][j]]>0 and nxt[rt][j]!=0 and j!=v)
        {
            // cout<<char('a'+j)<<endl;
            ans.pb(char('a'+j));
            print(nxt[rt][j],0);
            ans.pb('-');
            // cout<<'-'<<endl;
        }
    }
    ans.pb(char('a'+v));
    // cout<<char('a'+v)<<endl;
    print(nxt[rt][v],keep);
    if(!keep)
    {
        ans.pb('-');
        // cout<<'-'<<endl;
    }
}
void solve()
{
    int n;
    cin>>n;
    int len=0,mx=0;
    for(int i=0;i<n;i++)
    {
        string s;
        cin>>s;
        len+=2*s.size()+1;
        mx=max(mx,(int)s.size());
        // cout<<"cur "<<s<<endl;
        add(s);
    }
    print(0,1);
    cout<<ans.size()<<endl;
    for(auto x:ans)cout<<x<<endl;
}

• 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