CSES - Datatähti 2024 loppu

CSES - Datatähti 2024 loppu - Results

Submission details
Task:	Sulut
Sender:	Bean Benestrom
Submission time:	2024-01-20 16:42:48 +0200
Language:	C++17
Status:	READY
Result:	12

Feedback
group	verdict	score
#1	ACCEPTED	12
#2	TIME LIMIT EXCEEDED	0
#3	TIME LIMIT EXCEEDED	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 2, 3	details
#2	ACCEPTED	0.00 s	1, 2, 3	details
#3	ACCEPTED	0.00 s	1, 2, 3	details
#4	ACCEPTED	0.00 s	1, 2, 3	details
#5	ACCEPTED	0.00 s	1, 2, 3	details
#6	ACCEPTED	0.00 s	1, 2, 3	details
#7	ACCEPTED	0.00 s	1, 2, 3	details
#8	ACCEPTED	0.00 s	1, 2, 3	details
#9	ACCEPTED	0.00 s	1, 2, 3	details
#10	ACCEPTED	0.00 s	1, 2, 3	details
#11	ACCEPTED	0.00 s	1, 2, 3	details
#12	ACCEPTED	0.00 s	1, 2, 3	details
#13	ACCEPTED	0.00 s	1, 2, 3	details
#14	ACCEPTED	0.00 s	1, 2, 3	details
#15	ACCEPTED	0.01 s	1, 2, 3	details
#16	ACCEPTED	0.00 s	1, 2, 3	details
#17	ACCEPTED	0.00 s	1, 2, 3	details
#18	ACCEPTED	0.00 s	1, 2, 3	details
#19	ACCEPTED	0.00 s	1, 2, 3	details
#20	ACCEPTED	0.00 s	2, 3	details
#21	TIME LIMIT EXCEEDED	--	2, 3	details
#22	TIME LIMIT EXCEEDED	--	2, 3	details
#23	TIME LIMIT EXCEEDED	--	2, 3	details
#24	TIME LIMIT EXCEEDED	--	2, 3	details
#25	RUNTIME ERROR	0.41 s	3	details
#26	RUNTIME ERROR	0.42 s	3	details
#27	RUNTIME ERROR	0.41 s	3	details
#28	RUNTIME ERROR	0.41 s	3	details
#29	RUNTIME ERROR	0.42 s	3	details

Code

#include <iostream>
#include <vector>
#include <algorithm>
#include <array>
#include <unordered_map>

int SIZE, DIFF;
std::vector<bool> solutionA;
std::vector<bool> solutionB;

std::string A;
std::string B;

std::string get_as_string(const std::vector<bool>& x) {
    std::string string;
    for (bool Q : x) {
        string += (Q ? '(' : ')');
    }
    return string;
}


struct HASH
{
    std::size_t operator()(const std::array<int, 4>& array) const {
        std::size_t h = 0;

        for (auto e : array) {
            h  ^= std::hash<int>{}(e) + 0x9e3779b9 + (h << 6) + (h >> 2);
        }
        return h;
    }
};

std::unordered_map<std::array<int, 4>, bool, HASH> map;


// (openA, openB, size, difference)


// 1 = '('   0 = ')'

bool solve(std::vector<bool> groupA, std::vector<bool> groupB, int openA, int openB, int difference, int size) {

    /* A = get_as_string(groupA);
    B = get_as_string(groupB); */

    if (difference > DIFF)                      return false;
    if (openA < 0 || openA - (SIZE - size) > 0) return false;
    if (openB < 0 || openB - (SIZE - size) > 0) return false;

    if (size == SIZE) {
        if (difference != DIFF) return false; 
        solutionA = groupA;
        solutionB = groupB;
        return true; 
    }

    groupA.push_back(1);
    groupB.push_back(1);

    if (!map[{openA+1, openB+1, difference, size+1}]) {
        bool value = solve(groupA, groupB, openA+1, openB+1, difference, size+1);
        map[{openA+1, openB+1, difference, size+1}] = value;
        if (value) return true;
    }
    groupB[groupB.size()-1] = 0;
    if (!map[{openA+1, openB-1, difference+1, size+1}]) {
        bool value = solve(groupA, groupB, openA+1, openB-1, difference+1, size+1);
        map[{openA+1, openB-1, difference+1, size+1}] = value;
        if (value) return true;
    }
    groupA[groupA.size()-1] = 0;
    if (!map[{openA-1, openB-1, difference, size+1}]) {
        bool value = solve(groupA, groupB, openA-1, openB-1, difference, size+1);
        map[{openA-1, openB-1, difference, size+1}] = value;
        if (value) return true;
    }
    groupB[groupB.size()-1] = 1;
    if (!map[{openA-1, openB+1, difference+1, size+1}]) {
        bool value = solve(groupA, groupB, openA-1, openB+1, difference+1, size+1);
        map[{openA-1, openB+1, difference+1, size+1}] = value;
        if (value) return true;
    }
    return false;
}


int main() {
    std::cin >> SIZE >> DIFF;

    if (SIZE % 2 == 1 || DIFF % 2 == 1) {
        std::cout << "IMPOSSIBLE";
        return 0;
    }

    solve({1}, {1}, 1, 1, 0, 1);

    std::string stringA;
    std::string stringB;

    if (!solutionA.size()) {
        std::cout << "IMPOSSIBLE";
        return 0;
    }

    std::cout << get_as_string(solutionA) << '\n';
    std::cout << get_as_string(solutionB) << '\n';

    /* if (DIFF > SIZE/2) {
        std::cout << "IMPOSSIBLE";
        return 0;
    } */

    return 0;
}

/*

ACCEABFFZZZZ

*/

Test details

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

input
`2 0` view save

correct output
`() ()` view save

user output
`() ()` view save

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

input
`4 0` view save

correct output
`()() ()()` view save

user output
`(()) (())` view save

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

input
`4 2` view save

correct output
`()() (())` view save

user output
`(()) ()()` view save

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

input
`6 0` view save

correct output
`()()() ()()()` view save

user output
`((())) ((()))` view save

Test 5

Group: 1, 2, 3

Verdict: ACCEPTED

input
`6 2` view save

correct output
`()()() ()(())` view save

user output
`((())) (())()` view save

Test 6

Group: 1, 2, 3

Verdict: ACCEPTED

input
`6 4` view save

correct output
`()()() (()())` view save

user output
`(()()) ()()()` view save

Test 7

Group: 1, 2, 3

Verdict: ACCEPTED

input
`8 0` view save

correct output
`()()()() ()()()()` view save

user output
`(((()))) (((())))` view save

Test 8

Group: 1, 2, 3

Verdict: ACCEPTED

input
`8 2` view save

correct output
`()()()() ()()(())` view save

user output
`(((()))) ((()))()` view save

Test 9

Group: 1, 2, 3

Verdict: ACCEPTED

input
`8 4` view save

correct output
`()()()() ()(()())` view save

user output
`(((()))) (())()()` view save

Test 10

Group: 1, 2, 3

Verdict: ACCEPTED

input
`8 6` view save

correct output
`()()()() (()()())` view save

user output
`(()()()) ()()()()` view save

Test 11

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 0` view save

correct output
`()()()()() ()()()()()` view save

user output
`((((())))) ((((()))))` view save

Test 12

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 2` view save

correct output
`()()()()() ()()()(())` view save

user output
`((((())))) (((())))()` view save

Test 13

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 4` view save

correct output
`()()()()() ()()(()())` view save

user output
`((((())))) ((()))()()` view save

Test 14

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 6` view save

correct output
`()()()()() ()(()()())` view save

user output
`(((()()))) (())()()()` view save

Test 15

Group: 1, 2, 3

Verdict: ACCEPTED

input
`10 8` view save

correct output
`()()()()() (()()()())` view save

user output
`(()()()()) ()()()()()` view save

Test 16

Group: 1, 2, 3

Verdict: ACCEPTED

input
`4 1` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 17

Group: 1, 2, 3

Verdict: ACCEPTED

input
`4 4` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 18

Group: 1, 2, 3

Verdict: ACCEPTED

input
`5 1` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 19

Group: 1, 2, 3

Verdict: ACCEPTED

input
`5 2` view save

correct output
`IMPOSSIBLE` view save

user output
`IMPOSSIBLE` view save

Test 20

Group: 2, 3

Verdict: ACCEPTED

input
`100 0` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
`((((((((((((((((((((((((((((((...` Truncated

Test 21

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

input
`100 10` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 22

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

input
`100 42` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 23

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

input
`100 80` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 24

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

input
`100 98` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 25

Group: 3

Verdict: RUNTIME ERROR

input
`1000000 0` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 26

Group: 3

Verdict: RUNTIME ERROR

input
`1000000 42` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 27

Group: 3

Verdict: RUNTIME ERROR

input
`1000000 4242` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 28

Group: 3

Verdict: RUNTIME ERROR

input
`1000000 424242` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Test 29

Group: 3

Verdict: RUNTIME ERROR

input
`1000000 999998` view save

correct output
`()()()()()()()()()()()()()()()...` view save

user output
(empty)

Datatähti 2024 loppu

Sulut

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

Test 22

Test 23

Test 24

Test 25

Test 26

Test 27

Test 28

Test 29

Tasks

Submissions (Bean Benestrom)