CSES - Putka Open 2025 – 1/5

Submission details
Task:	Järjestys
Sender:	jhuun
Submission time:	2025-09-07 01:03:33 +0300
Language:	C++ (C++20)
Status:	READY
Result:	10

Feedback
group	verdict	score
#1	WRONG ANSWER	0
#2	WRONG ANSWER	0
#3	ACCEPTED	10
#4	WRONG ANSWER	0
#5	WRONG ANSWER	0

Test results
test	verdict	time	group
#1	ACCEPTED	0.00 s	1, 4, 5	details
#2	WRONG ANSWER	0.00 s	1, 4, 5	details
#3	WRONG ANSWER	0.00 s	1, 4, 5	details
#4	WRONG ANSWER	0.00 s	1, 4, 5	details
#5	WRONG ANSWER	0.00 s	1, 4, 5	details
#6	WRONG ANSWER	0.00 s	1, 2, 4, 5	details
#7	ACCEPTED	0.00 s	1, 3, 4, 5	details
#8	WRONG ANSWER	0.01 s	1, 4, 5	details
#9	ACCEPTED	0.02 s	2, 4, 5	details
#10	ACCEPTED	0.02 s	3, 4, 5	details
#11	WRONG ANSWER	0.01 s	4, 5	details
#12	WRONG ANSWER	0.01 s	4, 5	details
#13	WRONG ANSWER	0.01 s	4, 5	details
#14	WRONG ANSWER	0.02 s	4, 5	details
#15	ACCEPTED	0.10 s	2, 5	details
#16	ACCEPTED	0.15 s	3, 5	details
#17	WRONG ANSWER	0.14 s	5	details
#18	WRONG ANSWER	0.13 s	5	details
#19	WRONG ANSWER	0.15 s	5	details
#20	WRONG ANSWER	0.12 s	5	details
#21	WRONG ANSWER	0.14 s	5	details
#22	WRONG ANSWER	0.13 s	5	details

Code

#include <bits/stdc++.h>

struct Pair {
    int64_t x;
    int64_t y;
};

std::size_t yl(const std::vector<Pair>& pairs) {
    std::size_t i = 0;
    auto val = pairs[i].y;
    for (auto j = i + 1; j < pairs.size(); ++j) {
        if (pairs[j].x != pairs[i].x) break;
        if (pairs[j].y < val) {
            val = pairs[j].y;
            i = j;
        }
    }
    return i;
}

std::size_t xg(const std::vector<Pair>& pairs, std::size_t i) {
    auto val = pairs[i].x;
    for (auto j = i + 1; j < pairs.size(); ++j) {
        if (pairs[j].y != pairs[i].y) break;
        if (pairs[j].x > val) {
            val = pairs[j].x;
            i = j;
        }
    }
    return i;
}

std::size_t byx(const std::vector<Pair>& pairs, int64_t cy) {
    std::size_t sri = 0;
    while (sri < pairs.size() && cy > pairs[sri].x) ++sri;
    return sri;
}

int main() {
    const auto sortxl = [](const Pair& a, const Pair& b) { return a.x < b.x; };
    const auto sortyl = [](const Pair& a, const Pair& b) { return a.y < b.y; };
    int64_t t, n, x, y;
    std::cin >> t;
    for (auto i = 0; i < t; ++i) {
        std::cin >> n;
        std::vector<Pair> res;
        std::vector<Pair> pairs;
        for (auto j = 0; j < n; ++j) {
            std::cin >> x >> y;
            pairs.emplace_back(x, y);
        }
        // start: min x, then min y
        std::sort(pairs.begin(), pairs.end(), sortxl);
        const auto si = yl(pairs);
        res.push_back(pairs[si]);
        std::swap(pairs[si], pairs.back());
        pairs.pop_back();
        // next: min y s.t. x >= prev_y, then max x
        while (pairs.size()) {
            std::sort(pairs.begin(), pairs.end(), sortyl);
            const auto sri = byx(pairs, res.back().y);
            if (sri == pairs.size()) {
                std::cout << "NO\n";
                break;
            }
            const auto ni = xg(pairs, sri);
            res.push_back(pairs[ni]);
            std::swap(pairs[ni], pairs.back());
            pairs.pop_back();
        }
        if (pairs.size()) continue;
        std::cout << "YES\n";
        for (const auto [x, y] : res) {
            std::cout << x << ' ' << y << '\n';
        }
    }
}

Test details

Test 1

Group: 1, 4, 5

Verdict: ACCEPTED

input
`100 1 74 75 1 100 43 ...` view save

correct output
`YES 74 75 YES 100 43 YES ...` view save

user output
`YES 74 75 YES 100 43 YES ...` Truncated

Test 2

Group: 1, 4, 5

Verdict: WRONG ANSWER

input
`100 2 80 54 51 61 2 ...` view save

correct output
`YES 51 61 80 54 YES 2 64 ...` view save

user output
`YES 51 61 80 54 YES 2 64 ...` Truncated

Test 3

Group: 1, 4, 5

Verdict: WRONG ANSWER

input
`100 3 3 74 91 45 100 24 ...` view save

correct output
`YES 3 74 100 24 91 45 YES ...` view save

user output
`YES 3 74 100 24 91 45 NO ...` Truncated

Test 4

Group: 1, 4, 5

Verdict: WRONG ANSWER

input
`100 4 88 50 62 41 12 86 ...` view save

correct output
`YES 12 86 88 50 62 41 66 93 ...` view save

user output
`YES 12 86 88 50 62 41 66 93 ...` Truncated

Test 5

Group: 1, 4, 5

Verdict: WRONG ANSWER

input
`100 5 82 80 80 92 5 22 ...` view save

correct output
`YES 5 22 94 13 82 80 80 92 ...` view save

user output
`NO YES 26 31 79 4 96 18 ...` Truncated

Test 6

Group: 1, 2, 4, 5

Verdict: WRONG ANSWER

input
`100 5 34 38 26 30 1 6 ...` view save

correct output
`YES 1 6 12 22 26 30 34 38 ...` view save

user output
`YES 1 6 12 22 26 30 34 38 ...` Truncated

Test 7

Group: 1, 3, 4, 5

Verdict: ACCEPTED

input
`100 5 50 40 28 25 51 7 ...` view save

correct output
`YES 51 7 50 40 47 1 17 11 ...` view save

user output
`YES 17 11 47 1 51 7 28 25 ...` Truncated

Test 8

Group: 1, 4, 5

Verdict: WRONG ANSWER

input
`100 5 2 2 2 1 1 1 ...` view save

correct output
`YES 1 2 2 1 2 1 1 1 ...` view save

user output
`NO YES 1 1 2 1 2 2 ...` Truncated

Test 9

Group: 2, 4, 5

Verdict: ACCEPTED

input
`100 100 175870020 296379324 248160539 883842002 21934885 781732852 ...` view save

correct output
`NO YES 4976156 6890135 10553287 11923223 14617057 17728163 ...` view save

user output
`NO YES 4976156 6890135 10553287 11923223 14617057 17728163 ...` Truncated

Test 10

Group: 3, 4, 5

Verdict: ACCEPTED

input
`100 100 447597377 314433951 700232436 691277009 937268439 708165426 ...` view save

correct output
`YES 998963839 391778929 995772196 257222033 995754704 553123757 994629465 247775824 ...` view save

user output
`YES 78989197 22224979 131739372 728604 601509094 1962914 556280873 11961715 ...` Truncated

Test 11

Group: 4, 5

Verdict: WRONG ANSWER

input
`100 100 1 1 1 2 2 1 ...` view save

correct output
`YES 1 2 2 1 1 2 2 2 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 12

Group: 4, 5

Verdict: WRONG ANSWER

input
`100 100 7 1 6 3 10 9 ...` view save

correct output
`YES 6 7 7 8 9 10 10 10 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 13

Group: 4, 5

Verdict: WRONG ANSWER

input
`100 100 51 5 85 77 91 84 ...` view save

correct output
`YES 100 24 100 25 100 3 100 6 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 14

Group: 4, 5

Verdict: WRONG ANSWER

input
`100 100 823828194 863717310 593641073 340054211 420481158 965069109 ...` view save

correct output
`YES 999289319 634855378 996775156 433726648 983657502 55234695 981890636 112877413 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 15

Group: 2, 5

Verdict: ACCEPTED

input
`100 500 88724450 89315226 266915464 267648621 189301651 189661541 ...` view save

correct output
`YES 764920 1459946 1936195 2832987 3691481 4085931 4991808 5840928 ...` view save

user output
`YES 764920 1459946 1936195 2832987 3691481 4085931 4991808 5840928 ...` Truncated

Test 16

Group: 3, 5

Verdict: ACCEPTED

input
`100 500 763682761 317584504 756010800 260162861 435911339 78070399 ...` view save

correct output
`YES 998768285 3307355 998714926 628486754 997115613 820932481 993320616 554600893 ...` view save

user output
`YES 67893124 41695427 946780840 936351 325383021 2215164 998768285 3307355 ...` Truncated

Test 17

Group: 5

Verdict: WRONG ANSWER

input
`100 500 2 2 2 1 1 2 ...` view save

correct output
`YES 1 2 2 2 2 1 1 2 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 18

Group: 5

Verdict: WRONG ANSWER

input
`100 500 10 6 10 10 9 10 ...` view save

correct output
`YES 2 3 3 4 4 5 5 6 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 19

Group: 5

Verdict: WRONG ANSWER

input
`100 500 85 87 89 70 70 92 ...` view save

correct output
`YES 96 97 100 67 100 10 100 97 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 20

Group: 5

Verdict: WRONG ANSWER

input
`100 500 861154169 119512584 569086662 606567153 288230434 322196278 ...` view save

correct output
`YES 999945324 969534372 999738857 240617694 999244114 722161553 999207839 557351400 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 21

Group: 5

Verdict: WRONG ANSWER

input
`100 500 116439250 401518028 280329609 193466222 674040956 209050570 ...` view save

correct output
`NO YES 773701149 773852119 987509190 315670966 977413249 510418200 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Test 22

Group: 5

Verdict: WRONG ANSWER

input
`100 500 934181189 942499518 684836806 395802802 957884803 570946201 ...` view save

correct output
`YES 999772640 505132174 999111650 140844643 999028633 888134186 999020109 291046771 ...` view save

user output
`NO NO NO NO NO ...` Truncated

Putka Open 2025 – 1/5

Järjestys

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

Tasks

Submissions (jhuun)