Submission #237283

#	Time	Username	Problem	Language	Result	Execution time	Memory
237283		nikatamliani	Type Printer (IOI08_printer)	C++14	100 / 100	114 ms	52412 KiB

printer

#include <bits/stdc++.h>
using namespace std;
const int N = 1e6 + 100, M = 25005;
int codes[N][26], cntEnd[N * 26];
bool marked[N * 26];
int n, tries, maxLength, maxString;
string ans, s[M];
void add(string &s, bool mark){
	int code = 0;
	for(int i = 0; i < (int)s.size(); ++i){
		int c = s[i] - 'a'; 
		if(!codes[code][c]){
			codes[code][c] = ++tries;
		}
		code = codes[code][c];
		marked[code] = mark;
	}
	cntEnd[code] += !mark;
}
void findMinTime(int code){
	for(int i = 0; i < cntEnd[code]; ++i)ans += 'P';
	int last = -1;
	for(int i = 0; i < 26; ++i){
		if(!codes[code][i])continue;
		if(marked[codes[code][i]]){
			last = i;
		}else{
			ans += char(i + 'a');
			findMinTime(codes[code][i]);
			ans += '-';
		}
	}
	if(~last){
		ans += char(last + 'a');
		findMinTime(codes[code][last]);
		ans += '-';
	}
}
int main(){
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	cin >> n;
	for(int i = 1; i <= n; ++i){
		cin >> s[i];
		add(s[i], 0);
		if(maxLength < (int)s[i].size()){
			maxLength = (int)s[i].size();
			maxString = i;
		}
	}
	add(s[maxString], 1);
	findMinTime(0);
	int trash = (int)ans.size() - 1;
	while(ans[trash] == '-')trash--;
	ans = ans.substr(0, trash + 1);
	cout << (int)ans.size() << endl;
	for(int i = 0; i < (int)ans.size(); ++i){
		cout << ans[i] << '\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