CSES - Aalto Competitive Programming 2026 - wk2 - Wed

Submission details
Task:	Astralis session I
Sender:	aalto26bw_006
Submission time:	2026-09-09 17:45:48 +0300
Language:	C++ (C++23)
Status:	READY
Result:	TIME LIMIT EXCEEDED

Test results
test	verdict	time
#1	TIME LIMIT EXCEEDED	--	details
#2	TIME LIMIT EXCEEDED	--	details
#3	TIME LIMIT EXCEEDED	--	details
#4	TIME LIMIT EXCEEDED	--	details
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#34	TIME LIMIT EXCEEDED	--	details
#35	TIME LIMIT EXCEEDED	--	details
#36	TIME LIMIT EXCEEDED	--	details
#37	TIME LIMIT EXCEEDED	--	details
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#40	TIME LIMIT EXCEEDED	--	details
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#58	TIME LIMIT EXCEEDED	--	details
#59	TIME LIMIT EXCEEDED	--	details
#60	TIME LIMIT EXCEEDED	--	details
#61	TIME LIMIT EXCEEDED	--	details

Compiler report

input/code.cpp: In function 'int main(int, char**)':
input/code.cpp:18:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   18 |     for (int x=1; x<friends.size(); x++) {
      |                   ~^~~~~~~~~~~~~~~

Code

#include <iostream>
#include <vector>


int main(int argc, char **argv) {
    int n;
    std::cin >> n;

    std::vector<std::vector<int>> friends(n+1);
    for (int i=0; i<n; n++) {
        int a, b;
        std::cin >> a >> b;
        friends[a].push_back(b);
        friends[b].push_back(a);
    }

    int i = 0;
    for (int x=1; x<friends.size(); x++) {
        if (friends.at(x).size() % 2 != 0) {
            i++;
        }
    }

    if (i%2 == 0) {
        std::cout << "Yes" << std::endl;
    } else {
        std::cout << "No" << std::endl;
    }

    return 0;

}

Test details

Test 1

Verdict: TIME LIMIT EXCEEDED

input
`2 1 2` view save

correct output
`Yes MU` view save

user output
(empty)

Test 2

Verdict: TIME LIMIT EXCEEDED

input
`6 1 3 2 3 2 6 4 6 ...` view save

correct output
`No` view save

user output
(empty)

Test 3

Verdict: TIME LIMIT EXCEEDED

input
`6 1 2 2 3 3 6 2 4 ...` view save

correct output
`No` view save

user output
(empty)

Test 4

Verdict: TIME LIMIT EXCEEDED

input
`6 1 6 1 4 2 4 2 3 ...` view save

correct output
`No` view save

user output
(empty)

Test 5

Verdict: TIME LIMIT EXCEEDED

input
`6 2 4 1 4 2 6 1 3 ...` view save

correct output
`Yes MUMUMU` view save

user output
(empty)

Test 6

Verdict: TIME LIMIT EXCEEDED

input
`8 1 8 5 8 3 5 3 6 ...` view save

correct output
`Yes MUMUMUUM` view save

user output
(empty)

Test 7

Verdict: TIME LIMIT EXCEEDED

input
`8 1 4 1 6 3 6 1 5 ...` view save

correct output
`Yes MUUMMUMU` view save

user output
(empty)

Test 8

Verdict: TIME LIMIT EXCEEDED

input
`8 1 7 1 3 1 8 2 8 ...` view save

correct output
`No` view save

user output
(empty)

Test 9

Verdict: TIME LIMIT EXCEEDED

input
`8 2 3 3 8 7 8 5 8 ...` view save

correct output
`Yes MMUMUMUU` view save

user output
(empty)

Test 10

Verdict: TIME LIMIT EXCEEDED

input
`10 4 8 4 7 1 7 3 4 ...` view save

correct output
`Yes MUMMMUMUUU` view save

user output
(empty)

Test 11

Verdict: TIME LIMIT EXCEEDED

input
`10 3 4 4 5 4 8 4 10 ...` view save

correct output
`No` view save

user output
(empty)

Test 12

Verdict: TIME LIMIT EXCEEDED

input
`10 1 3 2 3 2 6 6 10 ...` view save

correct output
`Yes MMMUUMUMUU` view save

user output
(empty)

Test 13

Verdict: TIME LIMIT EXCEEDED

input
`10 1 10 1 3 6 10 8 10 ...` view save

correct output
`No` view save

user output
(empty)

Test 14

Verdict: TIME LIMIT EXCEEDED

input
`10 1 6 1 4 2 4 2 9 ...` view save

correct output
`No` view save

user output
(empty)

Test 15

Verdict: TIME LIMIT EXCEEDED

input
`12 4 10 4 11 9 11 6 11 ...` view save

correct output
`Yes UUUMUMMUMUMM` view save

user output
(empty)

Test 16

Verdict: TIME LIMIT EXCEEDED

input
`12 1 2 1 8 5 8 3 8 ...` view save

correct output
`Yes MUMMMUUMUUUM` view save

user output
(empty)

Test 17

Verdict: TIME LIMIT EXCEEDED

input
`14 9 12 6 9 3 6 3 11 ...` view save

correct output
`No` view save

user output
(empty)

Test 18

Verdict: TIME LIMIT EXCEEDED

input
`14 13 14 7 13 3 7 7 10 ...` view save

correct output
`Yes UMMMMUMUUMUUMU` view save

user output
(empty)

Test 19

Verdict: TIME LIMIT EXCEEDED

input
`14 1 3 3 8 3 7 8 9 ...` view save

correct output
`Yes MUUUMMUUUMMMMU` view save

user output
(empty)

Test 20

Verdict: TIME LIMIT EXCEEDED

input
`16 4 12 1 4 12 16 11 12 ...` view save

correct output
`No` view save

user output
(empty)

Test 21

Verdict: TIME LIMIT EXCEEDED

input
`18 12 13 13 17 8 13 12 15 ...` view save

correct output
`No` view save

user output
(empty)

Test 22

Verdict: TIME LIMIT EXCEEDED

input
`100 24 28 28 65 28 58 54 65 ...` view save

correct output
`Yes MMUUMUMMUMUMUUMUUMMUUUMMMUUUUM...` view save

user output
(empty)

Test 23

Verdict: TIME LIMIT EXCEEDED

input
`100 57 98 24 57 24 34 25 34 ...` view save

correct output
`Yes MUUMUMUUUMMUMMUMUMMMMMUUUMUUMM...` view save

user output
(empty)

Test 24

Verdict: TIME LIMIT EXCEEDED

input
`100 6 41 6 20 6 18 6 88 ...` view save

correct output
`Yes MMMMUMMMUMUUMMUUUMMMUUUUUMUUUU...` view save

user output
(empty)

Test 25

Verdict: TIME LIMIT EXCEEDED

input
`100 24 100 92 100 62 100 88 100 ...` view save

correct output
`Yes MUUMMUUMMUMUMUMUUUUUUMMMUMUMUM...` view save

user output
(empty)

Test 26

Verdict: TIME LIMIT EXCEEDED

input
`100 65 83 68 83 65 87 21 65 ...` view save

correct output
`No` view save

user output
(empty)

Test 27

Verdict: TIME LIMIT EXCEEDED

input
`100 12 87 12 56 41 56 11 41 ...` view save

correct output
`No` view save

user output
(empty)

Test 28

Verdict: TIME LIMIT EXCEEDED

input
`100 13 29 13 38 13 34 10 13 ...` view save

correct output
`Yes MMMMUUMUMMUUMMUUMMMUMMUUMMUUUU...` view save

user output
(empty)

Test 29

Verdict: TIME LIMIT EXCEEDED

input
`100 77 94 52 77 53 77 53 56 ...` view save

correct output
`No` view save

user output
(empty)

Test 30

Verdict: TIME LIMIT EXCEEDED

input
`100 56 59 56 76 17 76 17 75 ...` view save

correct output
`No` view save

user output
(empty)

Test 31

Verdict: TIME LIMIT EXCEEDED

input
`100 19 70 70 86 27 86 27 31 ...` view save

correct output
`Yes MMMMUMMUMMUUMMUMUUUMMMUMUMUUMU...` view save

user output
(empty)

Test 32

Verdict: TIME LIMIT EXCEEDED

input
`200 28 148 28 122 28 137 122 178 ...` view save

correct output
`Yes UUMUMMMUUMMUMMMUMMUUMUMUMUMMMU...` view save

user output
(empty)

Test 33

Verdict: TIME LIMIT EXCEEDED

input
`200 57 98 57 153 34 153 98 109 ...` view save

correct output
`No` view save

user output
(empty)

Test 34

Verdict: TIME LIMIT EXCEEDED

input
`200 6 177 6 20 6 158 88 158 ...` view save

correct output
`Yes MUUMUMMMUMUUMUUUUUUMUMMMMUUMMU...` view save

user output
(empty)

Test 35

Verdict: TIME LIMIT EXCEEDED

input
`200 142 178 119 142 142 155 119 140 ...` view save

correct output
`No` view save

user output
(empty)

Test 36

Verdict: TIME LIMIT EXCEEDED

input
`200 83 150 68 83 68 158 135 158 ...` view save

correct output
`Yes MMMUUUUUUMUUUMUMUUMMMUMUUUMMUM...` view save

user output
(empty)

Test 37

Verdict: TIME LIMIT EXCEEDED

input
`200 20 177 87 177 121 177 137 177 ...` view save

correct output
`Yes MMUMUMMMUUUMUMUMMMUMUMUUUUUUMM...` view save

user output
(empty)

Test 38

Verdict: TIME LIMIT EXCEEDED

input
`200 13 139 13 38 13 34 10 38 ...` view save

correct output
`Yes MUMMUUMUUMUUMMUMMMMUMMUMUUUMMU...` view save

user output
(empty)

Test 39

Verdict: TIME LIMIT EXCEEDED

input
`200 84 198 77 198 52 198 53 77 ...` view save

correct output
`Yes MMMUMUMMMUUUUMUUUMMMMMUMUMUUUU...` view save

user output
(empty)

Test 40

Verdict: TIME LIMIT EXCEEDED

input
`200 56 112 76 112 56 182 56 114 ...` view save

correct output
`No` view save

user output
(empty)

Test 41

Verdict: TIME LIMIT EXCEEDED

input
`200 19 114 19 70 70 86 19 27 ...` view save

correct output
`Yes MMMUMUUUUUMUMMMMMMMUUMMUMMMMUM...` view save

user output
(empty)

Test 42

Verdict: TIME LIMIT EXCEEDED

input
`1000 811 883 397 883 137 397 546 883 ...` view save

correct output
`Yes MMMMMUUMUMUUUUUUMUMUMMMMUMMUMM...` view save

user output
(empty)

Test 43

Verdict: TIME LIMIT EXCEEDED

input
`1000 393 736 393 398 398 407 351 393 ...` view save

correct output
`No` view save

user output
(empty)

Test 44

Verdict: TIME LIMIT EXCEEDED

input
`1000 507 955 340 955 507 813 418 955 ...` view save

correct output
`No` view save

user output
(empty)

Test 45

Verdict: TIME LIMIT EXCEEDED

input
`1000 230 974 230 440 440 752 752 977 ...` view save

correct output
`No` view save

user output
(empty)

Test 46

Verdict: TIME LIMIT EXCEEDED

input
`1000 406 944 778 944 68 944 545 778 ...` view save

correct output
`Yes UMUMMUMUUMUUMUUMUMMUUMUUMUUUUM...` view save

user output
(empty)

Test 47

Verdict: TIME LIMIT EXCEEDED

input
`1000 771 921 368 921 121 921 121 810 ...` view save

correct output
`Yes UMMUUUUUMUMMUMUMUUUUMMMMUMUUMM...` view save

user output
(empty)

Test 48

Verdict: TIME LIMIT EXCEEDED

input
`1000 290 518 518 738 518 554 290 997 ...` view save

correct output
`No` view save

user output
(empty)

Test 49

Verdict: TIME LIMIT EXCEEDED

input
`1000 370 791 390 791 390 835 585 835 ...` view save

correct output
`Yes MMUUUUUMMMUMMUMMMMMMUUMMUMMMMU...` view save

user output
(empty)

Test 50

Verdict: TIME LIMIT EXCEEDED

input
`1000 111 804 778 804 520 804 520 829 ...` view save

correct output
`Yes MMMUMUUUUUMMMUMMMMMUUMMUMMUUUU...` view save

user output
(empty)

Test 51

Verdict: TIME LIMIT EXCEEDED

input
`1000 627 823 399 627 27 399 27 945 ...` view save

correct output
`Yes MMUMMMMUUMMUUMUUUUUMUMMUMMMMMU...` view save

user output
(empty)

Test 52

Verdict: TIME LIMIT EXCEEDED

input
`100000 26991 68205 21905 68205 3029 26991 21905 29288 ...` view save

correct output
`No` view save

user output
(empty)

Test 53

Verdict: TIME LIMIT EXCEEDED

input
`100000 41845 94618 94618 96640 65841 94618 9894 96640 ...` view save

correct output
`Yes UMUUUMMUUUMMUMMUMUMMMUMMMUMUMU...` view save

user output
(empty)

Test 54

Verdict: TIME LIMIT EXCEEDED

input
`100000 11081 29940 11081 90273 11081 56653 56653 73314 ...` view save

correct output
`Yes UMMUUMMMUUMMMMMUUMMUUUMUMMMUUU...` view save

user output
(empty)

Test 55

Verdict: TIME LIMIT EXCEEDED

input
`100000 27549 31873 27549 48777 48777 71940 48777 59266 ...` view save

correct output
`Yes MMMMUUMUUMUMUMMUUUMMUMMMUMUUUM...` view save

user output
(empty)

Test 56

Verdict: TIME LIMIT EXCEEDED

input
`100000 2460 57807 2460 59927 56550 59927 35046 56550 ...` view save

correct output
`Yes MMMUUMMUMMUUUMMUMUMMMUMUUMUMUM...` view save

user output
(empty)

Test 57

Verdict: TIME LIMIT EXCEEDED

input
`100000 13089 77222 77222 89616 36711 89616 27645 77222 ...` view save

correct output
`Yes UMUUUMMMUUUUMMUMMMUUMMUUMUMUMU...` view save

user output
(empty)

Test 58

Verdict: TIME LIMIT EXCEEDED

input
`100000 35805 70440 70440 82302 64483 82302 64483 96767 ...` view save

correct output
`Yes MMMUUMMMUUUMMMUUMUUMUMMUUUMUUM...` view save

user output
(empty)

Test 59

Verdict: TIME LIMIT EXCEEDED

input
`100000 16206 68738 37820 68738 55519 68738 55519 77758 ...` view save

correct output
`Yes MMUUUMUUMUUMUUMUMMMMMUMUUUUUUU...` view save

user output
(empty)

Test 60

Verdict: TIME LIMIT EXCEEDED

input
`100000 47137 86808 47137 80136 47137 73346 73346 78144 ...` view save

correct output
`Yes UUMUMMUUUUMMMMMMMMUUMMMMMMUUMU...` view save

user output
(empty)

Test 61

Verdict: TIME LIMIT EXCEEDED

input
`100000 39438 53660 53660 60245 20924 60245 20924 38669 ...` view save

correct output
`No` view save

user output
(empty)

Aalto Competitive Programming 2026 - wk2 - Wed

Astralis session I

Compiler report

Code

Test details

Test 1

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Tasks

Submissions (aalto26bw_006)