Submission #437996

#	Time	Username	Problem	Language	Result	Execution time	Memory
437996		dutch	Type Printer (IOI08_printer)	C++17	100 / 100	146 ms	48836 KiB

printer

#include <bits/stdc++.h>
using namespace std;

const int LIM = 20 * 25000;

array<int, 26> g[LIM];
int a[LIM], toEnd = 0;
bitset<LIM> bad;
pair<int, string> mx = {0, ""};

void dfs(int u){
	while(a[u]--) cout << "P\n";
	if(u == toEnd) exit(0);
	for(int i=0; i<26; ++i){
		if(!g[u][i] || bad[g[u][i]]) continue;
		cout << char('a' + i) << '\n';
		dfs(g[u][i]);
		cout << "-\n";
	}
	for(int i=0; i<26; ++i){
		if(!g[u][i] || !bad[g[u][i]]) continue;
		cout << char('a' + i) << '\n';
		dfs(g[u][i]);
		cout << "-\n";
	}
}

signed main(){
	cin.tie(0)->sync_with_stdio(0);
	int n, cnt = 0; cin >> n;
	for(int i=0; i<n; ++i){
		string s; cin >> s;
		mx = max(mx, {s.size(), s});
		int u = 0;
		for(char c : s){
			if(!g[u][c-'a']) g[u][c-'a'] = ++cnt;
			u = g[u][c-'a'];
		}
		++a[u];
	}
	for(char c : mx.second){
		bad[toEnd = g[toEnd][c-'a']] = 1;
	}
	cout << 2*cnt - mx.first + n << '\n';
	dfs(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