Submission #954819

#	Time	Username	Problem	Language	Result	Execution time	Memory
954819		PieArmy	Type Printer (IOI08_printer)	C++17	100 / 100	112 ms	70080 KiB

printer

typedef long long ll;
ll pie(ll army){return (1ll<<army);}
#include <bits/stdc++.h>
#define fr first
#define sc second
#define pb push_back
#define endl '\n'
#define mid ((left+right)>>1)
const ll inf=2000000000000000005;
const int sonsuz=2000000005;
using namespace std;
ll fpow(ll x,ll y,ll m=0){if(y<0){cout<<"powError";return -1;}if(m)x%=m;ll res=1;while(y>0){if(y&1)res*=x;x*=x;if(m){x%=m;res%=m;}y>>=1;}return res;}

struct Node{
    int *a=new int[26];
    bool word=false;
    int deep=-1,depth=0;
};

vector<char>ans;
Node trie[500000];
int node_cnt=1;

void ekle(string word){
    int cur=0;
    for(char c:word){
        if(word.size()>trie[cur].depth){
            trie[cur].depth=word.size();
            trie[cur].deep=c-'a';
        }
        if(!trie[cur].a[c-'a']){
            trie[cur].a[c-'a']=node_cnt++;
        }
        cur=trie[cur].a[c-'a'];
    }
    trie[cur].word=true;
}

int main(){
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    int n;cin>>n;
    for(int i=0;i<n;i++){
        string s;cin>>s;
        ekle(s);
    }
    function<void(int)>f=[&](int pos)->void{
        if(trie[pos].word){
            ans.pb('P');
        }
        for(int i=0;i<26;i++){
            if(trie[pos].deep==i)continue;
            if(trie[pos].a[i]==0)continue;
            ans.pb(char('a'+i));
            f(trie[pos].a[i]);
        }
        if(trie[pos].deep!=-1){
            ans.pb(char('a'+trie[pos].deep));
            f(trie[pos].a[trie[pos].deep]);
        }
        ans.pb('-');
    };
    f(0);
    n=ans.size();
    while(ans[n-1]=='-')n--;
    cout<<n<<endl;
    for(int i=0;i<n;i++)
        cout<<ans[i]<<endl;
}

Compilation message (stderr)

printer.cpp: In function 'void ekle(std::string)':
printer.cpp:27:23: warning: comparison of integer expressions of different signedness: 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   27 |         if(word.size()>trie[cur].depth){
      |            ~~~~~~~~~~~^~~~~~~~~~~~~~~~

• 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