CSES - Datatähti 2018 alku - Results
Submission details
Task:Bittijono
Sender:SeveriK
Submission time:2017-10-09 21:50:19 +0300
Language:C++
Status:COMPILE ERROR

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:133:42: error: 'pow' was not declared in this scope
   unsigned long long int power = pow(k, k);
                                          ^

Code

/*
#include <iostream>
#include <fstream>
#include <string>
#include <vector>

using namespace std;

int main()
{
	string rows[10];
	for (int i = 0; i < 10; i++)
	{
		for (int o = 0; o < 10; o++)
		{
			int n = i + o;
			n = i + o;
			while (n > 9)
			{
				n -= 10;
			}
			rows[i] += to_string(n);

			if (i < 10 / 2)
			{
				n = o - i;
				while (n < 0)
				{
					n += 10;
				}
			}
			else
			{
				n = o - i + 1;
				while (n < 0)
				{
					n += 10;
				}
			}

			if (n == 0)
			{
				rows[i] += "A";
			}
			else if (n == 1)
			{
				rows[i] += "B";
			}
			else if (n == 2)
			{
				rows[i] += "C";
			}
			else if (n == 3)
			{
				rows[i] += "D";
			}
			else if (n == 4)
			{
				rows[i] += "E";
			}
			else if (n == 5)
			{
				rows[i] += "F";
			}
			else if (n == 6)
			{
				rows[i] += "G";
			}
			else if (n == 7)
			{
				rows[i] += "H";
			}
			else if (n == 8)
			{
				rows[i] += "I";
			}
			else if (n == 9)
			{
				rows[i] += "J";
			}
			if (o != 9)
			{
				rows[i] += " ";
			}
		}
		std::cout << rows[i] << "\n";
	}

	ofstream myfile;
	myfile.open("Eppapeli.txt");
	if (myfile.is_open())
	{
		for (int i = 0; i < 10; i++)
		{
			if (i != 10 - 1)
			{
				myfile << rows[i] + "\n";
			}
			else
			{
				myfile << rows[i];
			}
		}
		myfile.close();
	}

	int a;
	std::cin >> a;

	return 0;
}*/

#include <iostream>
#include <string>
#include <vector>
#include <bitset>

using namespace std;

int main()
{
	const int MAX_CHAR = 64;
	const int SEQUENCE_SIZE = 32;

	unsigned long long int subCount = 0;
	unsigned long long int i = 0;
	string bitSeq = "1";

	unsigned long long int k = 0;
	std::cin >> k;
	if (k > 10000)
	{
		unsigned long long int power = pow(k, k);
		cout << power;
	}
	if (k > 1000)
	{

		unsigned long long int l = 1;
		/*
		unsigned long int curK = 1;
		unsigned long long int lastAdd1 = 1;
		unsigned long long int lastAdd2 = 1;
		while (curK < k)
		{
			l++;
			unsigned long long int curAdd = lastAdd1 + lastAdd2;
			curK += curAdd;
			lastAdd2 = lastAdd1;
			lastAdd1 = curAdd;
		}
		bitSeq = "1";
		bitSeq += string(l - 1, '0');*/
		while (subCount < k)
		{
			if (l % 2)
			{
				bitSeq += '0';
			}
			else
			{
				bitSeq += '1';
			}
			l++;
			vector<unsigned long long int>last(MAX_CHAR, -1);

			const unsigned long long int n = bitSeq.length();

			unsigned long long int* dp = new unsigned long long int[n + 1];
			dp[0] = 1;

			for (unsigned long long int o = 1; o <= n; o++)
			{
				dp[o] = 2 * dp[o - 1];

				if (last[bitSeq[o - 1]] != (unsigned long long int) - 1)
				{
					dp[o] = dp[o] - dp[last[bitSeq[o - 1]]];
				}

				last[bitSeq[o - 1]] = (o - 1);
			}
			subCount = dp[n] - 1;
		}
		l = 1;
		while (subCount > k)
		{
			l++;
			if (bitSeq[l] == '1')
			{
				bitSeq[l] = '0';
			}
			vector<unsigned long long int>last(MAX_CHAR, -1);

			const unsigned long long int n = bitSeq.length();

			unsigned long long int* dp = new unsigned long long int[n + 1];
			dp[0] = 1;

			for (unsigned long long int o = 1; o <= n; o++)
			{
				dp[o] = 2 * dp[o - 1];

				if (last[bitSeq[o - 1]] != (unsigned long long int) - 1)
				{
					dp[o] = dp[o] - dp[last[bitSeq[o - 1]]];
				}

				last[bitSeq[o - 1]] = (o - 1);
			}
			subCount = dp[n] - 1;
		}

		i = stoi(bitSeq, nullptr, 2);
		subCount = 0;
	}

	while (subCount != k)
	{
		i++;
		const string inBits = bitset<SEQUENCE_SIZE>(i).to_string();
		bitSeq = inBits.substr(inBits.find("1", 0));

		vector<unsigned long long int>last(MAX_CHAR, -1);

		const unsigned long long int n = bitSeq.length();

		unsigned long long int* dp = new unsigned long long int[n + 1];
		dp[0] = 1;

		for (unsigned long long int o = 1; o <= n; o++)
		{
			dp[o] = 2 * dp[o - 1];

			if (last[bitSeq[o - 1]] != (unsigned long long int)-1)
			{
				dp[o] = dp[o] - dp[last[bitSeq[o - 1]]];
			}

			last[bitSeq[o - 1]] = (o - 1);
		}
		subCount = dp[n] - 1;
	}
	std::cout << bitSeq << "\n";

	int a = 0;
	std::cin >> a;
	return 0;
}