Submission #1026291

#	Time	Username	Problem	Language	Result	Execution time	Memory
1026291		fv3	Type Printer (IOI08_printer)	C++14	10 / 100	25 ms	2296 KiB

printer

#include <bits/stdc++.h>

using namespace std;
typedef long long ll;
ll INF = 1ll << 60ll;

vector<int> order(26);

bool compare(string a, string b)
{
	for (int i = 0; i < min(a.size(), b.size()); i++)
	{
		if (order[a[i]-'a'] > order[b[i]-'a']) return true;
		if (order[a[i]-'a'] < order[b[i]-'a']) return false;
	}

	return a.size() < b.size();
}

string printSolution(vector<string>&bestPerm)
{
	string res = "";
	string lastWord = "";
	for (auto w : bestPerm)
	{
		int i = 0;
		for (; i < min(lastWord.size(), w.size()); i++)
		{
			if (w[i] != lastWord[i])
				break;
		}

		for (int j = 0; j < lastWord.size() - i; j++)
			res += "-";

		for (; i < w.size(); i++)
			res += w[i];
		res += "P";

		lastWord = w;
	}

	return res;
}

int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);

	int N;
	cin >> N;

	vector<string> words(N);

	string longest = "";

	for (int i = 0; i < N; i++)
	{
		cin >> words[i];

		if (words[i].size() > longest.size())
			longest = words[i];
	}

	int x = 1;
	for (auto c : longest)
	{
		if (order[c-'a']) continue;
		order[c-'a'] = x++;
	}

	for (int i = 0; i < 26; i++)
	{
		if (order[i] == 0) 
			order[i] = x++;
	}

	sort(words.begin(), words.end(), compare);
	
	string res = printSolution(words);
	cout << res.size() << '\n';
	for (auto c : res)
	{
		cout << c << '\n';
	}
	return 0;
}

Compilation message (stderr)

printer.cpp: In function 'bool compare(std::string, std::string)':
printer.cpp:11:20: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
   11 |  for (int i = 0; i < min(a.size(), b.size()); i++)
      |                  ~~^~~~~~~~~~~~~~~~~~~~~~~~~
printer.cpp: In function 'std::string printSolution(std::vector<std::__cxx11::basic_string<char> >&)':
printer.cpp:27:12: warning: comparison of integer expressions of different signedness: 'int' and 'const long unsigned int' [-Wsign-compare]
   27 |   for (; i < min(lastWord.size(), w.size()); i++)
      |          ~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
printer.cpp:33:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |   for (int j = 0; j < lastWord.size() - i; j++)
      |                   ~~^~~~~~~~~~~~~~~~~~~~~
printer.cpp:36:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |   for (; i < w.size(); i++)
      |          ~~^~~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10