Submission #1108350

#	Time	Username	Problem	Language	Result	Execution time	Memory
1108350		vjudge1	Type Printer (IOI08_printer)	C++17	100 / 100	142 ms	61444 KiB

printer

#include <bits/stdc++.h>
 
using namespace std;
 
#define int long long
#define ll long long
#define endl "\n"
#define F first
#define S second
#define pb push_back
#define eb emplace_back
#define rep(i, a, b) for(int i = a; i < b; i++)
#define tam(s) (int)s.size()
#define all(x) x.begin(), x.end()
#define fastio ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL);
 
typedef vector<int> vi;
typedef pair<int, char> pic;
typedef tuple<int, int, int> tii;
const int lim=500001;
int t[lim], fim[lim];

int32_t main(){
    fastio;
 
    int n, k=0, l;
    string s, ans="";
    cin >> n;
    map<char, int> m[lim];
    
    rep(i, 0, n){
        cin >> s;
        int j=0, p=0;
        for(char c: s){
            auto it = m[j].find(c);
            if(it == m[j].end()) m[j][c] = ++k, j=k;
            else j=m[j][c];
            t[j] = max(t[j], tam(s)-p);
            p++;
        }
        fim[j]++;
    }

    auto dfs=[&] (auto self, int i) -> void {
        while(fim[i]--){
            ans += 'P';
            l = tam(ans);
        }
        if(m[i].empty()) return;
        vector<pic> v;
        for(auto [a, b] : m[i]) v.eb(t[b], a);
        sort(all(v));
        for(auto [a, b] : v){
            ans += b;
            self(self, m[i][b]);
            ans += '-';
        }
    };
    dfs(dfs, 0);
    cout << l << endl;
    rep(i, 0, l) cout << ans[i] << endl;

    return 0;    
}

• 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