CSES - Putka Open 2020 – 1/5

Submission details
Task:	Lista
Sender:	Grez
Submission time:	2020-09-06 12:57:21 +0300
Language:	C++ (C++17)
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	WRONG ANSWER	0.01 s	1, 2, 3	details
#2	WRONG ANSWER	0.01 s	1, 2, 3	details
#3	WRONG ANSWER	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	RUNTIME ERROR	0.01 s	1, 2, 3	details
#7	WRONG ANSWER	0.01 s	1, 2, 3	details
#8	WRONG ANSWER	0.01 s	1, 2, 3	details
#9	WRONG ANSWER	0.01 s	1, 2, 3	details
#10	WRONG ANSWER	0.01 s	2, 3	details
#11	RUNTIME ERROR	0.01 s	2, 3	details
#12	RUNTIME ERROR	0.01 s	2, 3	details
#13	RUNTIME ERROR	0.01 s	2, 3	details
#14	RUNTIME ERROR	0.01 s	2, 3	details
#15	RUNTIME ERROR	0.01 s	2, 3	details
#16	RUNTIME ERROR	0.01 s	3	details
#17	RUNTIME ERROR	0.01 s	3	details
#18	RUNTIME ERROR	0.01 s	3	details
#19	RUNTIME ERROR	0.01 s	3	details
#20	RUNTIME ERROR	0.01 s	3	details
#21	RUNTIME ERROR	0.01 s	3	details

Code

#include <iostream>

using namespace std;

class Solver
{
	public:
		Solver(int amount);
		~Solver();
		void Solve();
	private:
		bool* sieve;
		int* ans;
		int amo;
		void swap(int a, int b);
		bool recurse(int pos);
};
Solver::Solver(int amount) {
	amo = amount;
	sieve = new bool(amo);
	ans = new int(amo);
}
Solver::~Solver() {
	delete sieve;
	delete ans;
}
void Solver::swap(int a, int b)
{
	if (a == b) return;
	int t = ans[a];
	ans[a] = ans[b];
	ans[b] = t;
}
bool Solver::recurse(int pos)
{
	for (int other = pos; other >= 0; other -= 2)
	{
		if (sieve[(ans[other] + ans[pos + 1]) / 2]) continue;
		if (pos == 0) return true;
		swap(pos, other);
		if (recurse(pos - 1)) return true;
		swap(pos, other); //swap back
	}
	return false;
}

void Solver::Solve()
{
	int maxPrime = amo * 2;
	for (int mul = 3; (mul * mul) < maxPrime; mul += 2)
	{
		for (int hole = mul / 2 + mul; hole < amo; hole += mul)
		{
			sieve[hole] = true;
		}
	}


	for (int i = 0; i < amo; i++) { ans[i] = i + 1; }

	if (recurse(amo - 2))
	{
		for (int i=0; i<amo; i++) {
			cout << ans[i];
		}
		cout << endl;
	}
}
int main() {
    int amo;
    cin >> amo;
	Solver s(amo);
	s.Solve();
}

Test details

Test 1

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`2` view save

correct output
`1 2` view save

user output
`12` view save

Test 2

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`3` view save

correct output
`1 2 3` view save

user output
`123` view save

Test 3

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`4` view save

correct output
`1 2 3 4` view save

user output
`1234` view save

Test 4

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`5` view save

correct output
`3 4 1 2 5` view save

user output
`14325` view save

Test 5

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`6` view save

correct output
`3 4 1 2 5 6` view save

user output
`143256` view save

Test 6

Group: 1, 2, 3

Verdict: RUNTIME ERROR

input
`7` view save

correct output
`3 4 1 2 5 6 7` view save

user output
(empty)

Error:

code: malloc.c:2401: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0)...

Test 7

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`8` view save

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

user output
`12347641130` view save

Test 8

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`9` view save

correct output
`7 6 5 2 1 4 3 8 9` view save

user output
`12347641130875770417` view save

Test 9

Group: 1, 2, 3

Verdict: WRONG ANSWER

input
`10` view save

correct output
`7 6 5 2 1 4 3 8 9 10` view save

user output
`12347641130875770417825505335` view save

Test 10

Group: 2, 3

Verdict: WRONG ANSWER

input
`19` view save

correct output
`17 14 3 8 15 16 13 6 5 2 1 4 9...` view save

user output
`143256411308422164978255053339...` Truncated

Test 11

Group: 2, 3

Verdict: RUNTIME ERROR

input
`56` view save

correct output
`55 54 53 50 51 52 49 48 13 28 ...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 12

Group: 2, 3

Verdict: RUNTIME ERROR

input
`70` view save

correct output
`67 4 1 2 9 32 35 38 65 66 61 4...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 13

Group: 2, 3

Verdict: RUNTIME ERROR

input
`76` view save

correct output
`73 66 61 42 59 54 53 50 51 52 ...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 14

Group: 2, 3

Verdict: RUNTIME ERROR

input
`90` view save

correct output
`87 86 11 18 29 44 45 16 55 58 ...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 15

Group: 2, 3

Verdict: RUNTIME ERROR

input
`100` view save

correct output
`97 96 95 78 25 82 81 56 71 68 ...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 16

Group: 3

Verdict: RUNTIME ERROR

input
`154` view save

correct output
`151 6 5 92 137 134 149 84 143 ...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 17

Group: 3

Verdict: RUNTIME ERROR

input
`430` view save

correct output
`427 426 371 372 367 376 375 35...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 18

Group: 3

Verdict: RUNTIME ERROR

input
`629` view save

correct output
`627 404 227 146 83 150 77 74 3...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 19

Group: 3

Verdict: RUNTIME ERROR

input
`833` view save

correct output
`829 828 793 574 523 516 515 51...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 20

Group: 3

Verdict: RUNTIME ERROR

input
`885` view save

correct output
`883 724 723 878 881 726 721 71...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Test 21

Group: 3

Verdict: RUNTIME ERROR

input
`1000` view save

correct output
`997 996 737 884 995 492 991 20...` view save

user output
`123476411308757704178255053359...` Truncated

Error:

double free or corruption (out)

Putka Open 2020 – 1/5

Lista

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

Test 16

Test 17

Test 18

Test 19

Test 20

Test 21

Tasks

Submissions (Grez)