CSES - Putka Open 2020 – 2/5

CSES - Putka Open 2020 – 2/5 - Results

Submission details
Task:	Summat
Sender:	FooBat
Submission time:	2020-09-27 19:06:34 +0300
Language:	C++ (C++11)
Status:	READY
Result:	0

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0
#3	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.01 s	1, 2, 3	details
#2	WRONG ANSWER	0.01 s	1, 2, 3	details
#3	ACCEPTED	0.01 s	1, 2, 3	details
#4	WRONG ANSWER	0.01 s	1, 2, 3	details
#5	WRONG ANSWER	0.01 s	1, 2, 3	details
#6	ACCEPTED	0.01 s	2, 3	details
#7	WRONG ANSWER	0.01 s	2, 3	details
#8	ACCEPTED	0.01 s	2, 3	details
#9	WRONG ANSWER	0.01 s	2, 3	details
#10	WRONG ANSWER	0.01 s	2, 3	details
#11	ACCEPTED	0.01 s	3	details
#12	WRONG ANSWER	0.01 s	3	details
#13	ACCEPTED	0.01 s	3	details
#14	WRONG ANSWER	0.03 s	3	details
#15	WRONG ANSWER	0.07 s	3	details

Code

#include <iostream>
#include <vector>
#include <algorithm>

void print(const std::vector<int>& vals) 
{
	for (unsigned i = 0; i < vals.size(); i++)
	{
		std::cout << vals[i];
		if (i < vals.size()-1)
			std::cout << " ";
	}
	std::cout << "\n";
}

std::vector<int> pairs(const std::vector<int>& numbers) 
{
	std::vector<int> results;
	for (unsigned i = 0; i < numbers.size()-1; i++) 
	{
		for (unsigned j = i + 1; j < numbers.size(); j++)
		{
			results.emplace_back(numbers[i] + numbers[j]);
		}
	}
	std::sort(results.begin(), results.end());
	return results;
}

int test(int idx, int value, const std::vector<int>& numbers, std::vector<bool>& used) 
{
	for (unsigned i = idx; i < numbers.size(); i++) 
	{
		if (used[i])
			continue;

		if (value < numbers[i])
			return 0;
		if (value == numbers[i]) 
		{
			return i;
		}
	}

	return 0;
}



std::vector<int> solve(unsigned n, const std::vector<int>& numbers) 
{
	std::vector<bool> used;
	used.resize(numbers.size());
	std::vector<int> solved;
	solved.resize(numbers.size());
	int min_unused = 2;
	int a_max = numbers[0];
	std::vector<int> tests;

	auto testAndMark = [&](int idx, int value) -> bool
	{
		for (unsigned i = idx; i < solved.size(); i++)
		{
			int val = solved[i] + value;
			int foundIdx = test(min_unused, val, numbers, used);
			if (!foundIdx)
			{
				for (int f : tests)
					used[f] = false;
				return false;
			}
			used[foundIdx] = true;
			tests.emplace_back(foundIdx);
		}
		return true;
	};
	auto testFirst = [&](int b, int c) 
	{
		int val = b + c;

		for (unsigned i = 1; i < numbers.size(); i++)
		{
			
			if (val < numbers[i])
				return false;
			if (val == numbers[i])
			{
				return true;
			}
		}

		return false;
	};

	for (int a = 1; a < a_max; a++)
	{
		int b = numbers[0] - a;
		int next = numbers[1] - a;
		
		if (!testFirst(b, next)) 
		{
			continue;
		}
		solved.clear();
		solved.emplace_back(a);
		solved.emplace_back(b);
		used.clear();
		used.resize(numbers.size());
		min_unused = 2;
		tests.clear();
		if (!testAndMark(min_unused, next)) 
		{
			continue;
		}
		solved.emplace_back(next);


		while (solved.size() < n)
		{

			for (unsigned i = min_unused; i < numbers.size(); i++)
			{
				if (!used[i])
				{
					min_unused = i;
					break;
				}
			}
			next = numbers[min_unused] - a;
			used[min_unused++] = true;
			tests.clear();
			if (!testAndMark(min_unused, next))
			{
				break;
			}
			solved.emplace_back(next);
		}
		if (solved.size() == n)
			break;
	}
	return solved;
}
std::vector<int> readInput(unsigned& n)
{
	std::vector<int> inputs;
	std::cin >> n;
	unsigned reads = (n*(n - 1)) / 2;
	for (unsigned i = 0; i < reads; i++) 
	{
		int v;
		std::cin >> v;
		inputs.emplace_back(v);
	}
	return inputs;
}
std::vector<int> testInputs(unsigned &n)
{
	std::vector<int> test = { 134123123,26365345,31231231,123123123, 12312000,123125151 };
	std::sort(test.begin(), test.end());
	n = test.size();
	print(test);
	auto vec = pairs(test);
	print(vec);
	return vec;
}
int main()
{
	unsigned n;
	std::vector<int> vec = readInput(n);
	//std::vector<int> vec = testInputs(n);
	std::sort(vec.begin(), vec.end());
	print(solve(n, vec));


}

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`5 2 2 2 2 2 2 2 2 2 2` view save

correct output
`1 1 1 1 1` view save

user output
`1 1 1 1 1` view save

Test 2

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`5 3 4 5 5 6 6 7 7 8 9` view save

correct output
`1 2 3 4 5` view save

user output
`1 2 3 4 4` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
`5 5 6 6 6 9 9 9 10 10 10` view save

correct output
`1 4 5 5 5` view save

user output
`1 4 5 5 5` view save

Test 4

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`5 2 3 3 6 6 6 6 7 7 10` view save

correct output
`1 1 2 5 5` view save

user output
`1 1 2 2 5` view save

Test 5

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`5 4 5 5 5 5 6 6 6 7 7` view save

correct output
`2 2 3 3 4` view save

user output
`1 3 4 4 4` view save

Test 6

Group: 2, 3

Verdict: ACCEPTED

input
`20 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...` view save

correct output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

Test 7

Group: 2, 3

Verdict: WRONG ANSWER

input
`20 3 4 5 5 6 6 7 7 7 8 8 8 9 9 9 ...` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`1 2 3 4 4 5 5 6 6 6 7 7 7 8 8 ...` view save

Test 8

Group: 2, 3

Verdict: ACCEPTED

input
`20 52 55 55 57 62 62 63 64 66 71 ...` view save

correct output
`1 51 54 54 56 61 61 62 63 65 7...` view save

user output
`1 51 54 54 56 61 61 62 63 65 7...` view save

Test 9

Group: 2, 3

Verdict: WRONG ANSWER

input
`20 25 30 31 32 36 39 40 41 45 45 ...` view save

correct output
`8 17 22 23 24 28 43 50 53 55 6...` view save

user output
`2 23 28 29 30 34 37 38 39 43 4...` view save

Test 10

Group: 2, 3

Verdict: WRONG ANSWER

input
`20 9 10 14 17 17 20 21 22 24 25 2...` view save

correct output
`1 8 9 13 16 19 30 32 38 40 43 ...` view save

user output
`1 8 9 13 16 16 19 20 21 23 24 ...` view save

Test 11

Group: 3

Verdict: ACCEPTED

input
`100 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 ...` view save

correct output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` view save

user output
`1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...` Truncated

Test 12

Group: 3

Verdict: WRONG ANSWER

input
`100 3 4 5 5 6 6 7 7 7 8 8 8 9 9 9 ...` view save

correct output
`1 2 3 4 5 6 7 8 9 10 11 12 13 ...` view save

user output
`1 2 3 4 4 5 5 6 6 6 7 7 7 8 8 ...` Truncated

Test 13

Group: 3

Verdict: ACCEPTED

input
`100 502824619 505239810 505668108 ...` view save

correct output
`1 502824618 505239809 50566810...` view save

user output
`1 502824618 505239809 50566810...` Truncated

Test 14

Group: 3

Verdict: WRONG ANSWER

input
`100 17871832 41618648 51611938 538...` view save

correct output
`3939271 13932561 37679377 4989...` view save

user output
`2827936 15043896 38790712 4878...` Truncated

Test 15

Group: 3

Verdict: WRONG ANSWER

input
`100 70588435 115481965 116040218 1...` view save

correct output
`5902586 64685849 109579379 110...` view save

user output
`3642165 66946270 111839800 112...` Truncated

Putka Open 2020 – 2/5

Summat

Code

Test details

Test 1

Test 2

Test 3

Test 4

Test 5

Test 6

Test 7

Test 8

Test 9

Test 10

Test 11

Test 12

Test 13

Test 14

Test 15

Tasks

Submissions (FooBat)