Submission #1065031

#	Time	Username	Problem	Language	Result	Execution time	Memory
1065031		YassirSalama	Type Printer (IOI08_printer)	C++17	100 / 100	113 ms	99016 KiB

printer

#include<bits/stdc++.h>
using namespace std;
struct Node{
    Node* c[26];
    int maxdepth=0;
    bool leaf=false;
    Node(){
        for(int i=0;i<26;i++) c[i]=nullptr;
    }
};
Node* root=new Node();
void insert(string s){
    Node* node=root;
    int n=s.length();
    for(int i=0;i<n;i++){
        if(node->c[s[i]-'a']==nullptr) node->c[s[i]-'a']=new Node();
        node=node->c[s[i]-'a'];
        node->maxdepth=max(node->maxdepth,n);
    }
    node->leaf=true;
}
int k;
vector<char> op;
void dfs(Node* node){
    int best=-1;
    int mx=-1;
    for(int i=0;i<26;i++){
        if(node->c[i]!=nullptr){
            if(node->c[i]->maxdepth>mx){
                mx=node->c[i]->maxdepth;
                best=i;
            }
        }
    }
    if(node->leaf){
        k--;
        op.push_back('P');
    }
    for(int j=0;j<26;j++){
        if(node->c[j]){
            if(j==best) continue;
            op.push_back(char('a'+j));
            dfs(node->c[j]);
            if(k!=0)
                op.push_back('-');
        }
    }
    if(best!=-1){
        op.push_back(char(best+'a'));
        dfs(node->c[best]);
        if(k!=0) op.push_back('-');
    }
}
signed main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);
    int n;
    cin>>n;
    k=n;
    string s;
    for(int i=0;i<n;i++){
        cin>>s;
        insert(s);
    }
    dfs(root);
    cout<<op.size()<<"\n";
    for(auto x:op){
        cout<<x<<"\n";
    }
}

• 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