CSES - Aalto Competitive Programming 2026 - wk3 - Wed

Submission details
Task:	Spin-Pop-Squeeze-Clap
Sender:	aalto26cw_010
Submission time:	2026-09-16 17:09:45 +0300
Language:	C++ (C++20)
Status:	READY
Result:	WRONG ANSWER

Test results
test	verdict	time
#1	ACCEPTED	0.00 s	details
#2	ACCEPTED	0.00 s	details
#3	ACCEPTED	0.00 s	details
#4	ACCEPTED	0.00 s	details
#5	WRONG ANSWER	0.00 s	details
#6	WRONG ANSWER	0.07 s	details
#7	ACCEPTED	0.01 s	details
#8	WRONG ANSWER	0.05 s	details
#9	ACCEPTED	0.02 s	details
#10	ACCEPTED	0.01 s	details
#11	ACCEPTED	0.02 s	details
#12	ACCEPTED	0.01 s	details
#13	ACCEPTED	0.03 s	details
#14	WRONG ANSWER	0.01 s	details
#15	ACCEPTED	0.01 s	details
#16	ACCEPTED	0.04 s	details
#17	WRONG ANSWER	0.02 s	details
#18	ACCEPTED	0.01 s	details
#19	ACCEPTED	0.01 s	details
#20	ACCEPTED	0.00 s	details
#21	ACCEPTED	0.01 s	details
#22	WRONG ANSWER	0.03 s	details
#23	WRONG ANSWER	0.03 s	details
#24	WRONG ANSWER	0.02 s	details
#25	WRONG ANSWER	0.04 s	details
#26	ACCEPTED	0.06 s	details
#27	WRONG ANSWER	0.01 s	details
#28	ACCEPTED	0.08 s	details
#29	WRONG ANSWER	0.08 s	details
#30	ACCEPTED	0.05 s	details
#31	ACCEPTED	0.03 s	details
#32	WRONG ANSWER	0.03 s	details
#33	ACCEPTED	0.05 s	details
#34	ACCEPTED	0.01 s	details
#35	WRONG ANSWER	0.03 s	details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:26:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |         for (int i = 0; i < a.size()+1; i++) {
      |                         ~~^~~~~~~~~~~~
input/code.cpp:27:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   27 |             for (int j = 0; j < b.size()+1; j++) {
      |                             ~~^~~~~~~~~~~~

Code

#include <bits/stdc++.h>

using namespace std;
#define ll long long

int main() {

    string astr, bstr;
    cin >> astr >> bstr;

    vector<int> a;
    for (auto &c : astr) a.push_back(c - '0');

    vector<int> b;
    for (auto &c : bstr) b.push_back(c - '0');
    

    ll inf = 1'000'000'000'000;
    

    
    ll min_found = inf;
    for (int k = 0; k < 10; k++) {
        
        vector<vector<ll>> dp(a.size()+1, vector<ll>(b.size()+1, inf));
        for (int i = 0; i < a.size()+1; i++) {
            for (int j = 0; j < b.size()+1; j++) {
                
                if (i == 0) {
                    dp[i][j] = j;
                    continue;
                }

                if (j == 0) {
                    dp[i][j] = i;
                    continue;
                }

                ll &d = dp[i][j];
                // cout << astr << " " << bstr <<  " "  << k << endl;
                // cout << i << " " << j << " " << a[i] << " " << b[j] << endl;
                
                // if ((a[i] + k) % 10 == b[j]) cout << "HEEEY" << " " << k << endl;

                d = min(d, dp[i-1][j-1] + ((a[i-1]+k)%10 == b[j-1] ? 0 : 1));
                d = min(d, dp[i-1][j] + 1);
                d = min(d, dp[i][j-1] + 1);
    
            }
        }

        // cout << "---------------------" << endl; 
        // for (int i = 0; i < a.size(); i++) {
        //     for (int j = 0; j < b.size(); j++) {
        //         cout << dp[i][j] << " ";
        //     }
        //     cout << endl;
        // }

        min_found = min(min_found, dp[a.size() - 1][b.size() - 1] + k);

    }

    cout << min_found << endl;


}

Test details

Test 1

Verdict: ACCEPTED

input
`111222 283303` view save

correct output
`4` view save

user output
`4` view save

Test 2

Verdict: ACCEPTED

input
`123123 54545` view save

correct output
`4` view save

user output
`4` view save

Test 3

Verdict: ACCEPTED

input
`111 222` view save

correct output
`1` view save

user output
`1` view save

Test 4

Verdict: ACCEPTED

input
`999 999` view save

correct output
`0` view save

user output
`0` view save

Test 5

Verdict: WRONG ANSWER

input
`450 57` view save

correct output
`2` view save

user output
`1` view save

Feedback: Incorrect character on line 1 col 1: expected "2", got "1"

Test 6

Verdict: WRONG ANSWER

input
`660487647593824219489241157815...` view save

correct output
`674` view save

user output
`673` view save

Feedback: Incorrect character on line 1 col 3: expected "674", got "673"

Test 7

Verdict: ACCEPTED

input
`914177763170669074391500080636...` view save

correct output
`130` view save

user output
`130` view save

Test 8

Verdict: WRONG ANSWER

input
`011524493909266858784005756682...` view save

correct output
`681` view save

user output
`680` view save

Feedback: Incorrect character on line 1 col 3: expected "681", got "680"

Test 9

Verdict: ACCEPTED

input
`982597919074833788762328601290...` view save

correct output
`717` view save

user output
`717` view save

Test 10

Verdict: ACCEPTED

input
`416721106840388542143044324451...` view save

correct output
`215` view save

user output
`215` view save

Test 11

Verdict: ACCEPTED

input
`458073021573681930364262129972...` view save

correct output
`473` view save

user output
`473` view save

Test 12

Verdict: ACCEPTED

input
`917400297550473688139849165156...` view save

correct output
`699` view save

user output
`699` view save

Test 13

Verdict: ACCEPTED

input
`260181590830166131860913909960...` view save

correct output
`584` view save

user output
`584` view save

Test 14

Verdict: WRONG ANSWER

input
`562301238360777679361730486761...` view save

correct output
`284` view save

user output
`283` view save

Feedback: Incorrect character on line 1 col 3: expected "284", got "283"

Test 15

Verdict: ACCEPTED

input
`954220587915890627622301289161...` view save

correct output
`416` view save

user output
`416` view save

Test 16

Verdict: ACCEPTED

input
`067903774208751350629566447245...` view save

correct output
`442` view save

user output
`442` view save

Test 17

Verdict: WRONG ANSWER

input
`877893287921742180967929081003...` view save

correct output
`358` view save

user output
`357` view save

Feedback: Incorrect character on line 1 col 3: expected "358", got "357"

Test 18

Verdict: ACCEPTED

input
`485260574793809275253093185610...` view save

correct output
`442` view save

user output
`442` view save

Test 19

Verdict: ACCEPTED

input
`423232218340629042147624537896...` view save

correct output
`192` view save

user output
`192` view save

Test 20

Verdict: ACCEPTED

input
`983444174766143554582284201195...` view save

correct output
`83` view save

user output
`83` view save

Test 21

Verdict: ACCEPTED

input
`308023002531575464533553486397...` view save

correct output
`984` view save

user output
`984` view save

Test 22

Verdict: WRONG ANSWER

input
`774637064330445294039402907794...` view save

correct output
`544` view save

user output
`543` view save

Feedback: Incorrect character on line 1 col 3: expected "544", got "543"

Test 23

Verdict: WRONG ANSWER

input
`645428410366485628023288358114...` view save

correct output
`378` view save

user output
`377` view save

Feedback: Incorrect character on line 1 col 3: expected "378", got "377"

Test 24

Verdict: WRONG ANSWER

input
`175337727474341582323359837344...` view save

correct output
`695` view save

user output
`694` view save

Feedback: Incorrect character on line 1 col 3: expected "695", got "694"

Test 25

Verdict: WRONG ANSWER

input
`081836584929414654154099313187...` view save

correct output
`493` view save

user output
`492` view save

Feedback: Incorrect character on line 1 col 3: expected "493", got "492"

Test 26

Verdict: ACCEPTED

input
`241592066112579763355561876139...` view save

correct output
`630` view save

user output
`630` view save

Test 27

Verdict: WRONG ANSWER

input
`664737828830059612330669705871...` view save

correct output
`559` view save

user output
`558` view save

Feedback: Incorrect character on line 1 col 3: expected "559", got "558"

Test 28

Verdict: ACCEPTED

input
`230972151340592860909446321989...` view save

correct output
`696` view save

user output
`696` view save

Test 29

Verdict: WRONG ANSWER

input
`410946685234703970117608650309...` view save

correct output
`691` view save

user output
`690` view save

Feedback: Incorrect character on line 1 col 3: expected "691", got "690"

Test 30

Verdict: ACCEPTED

input
`692323212407710827747149254185...` view save

correct output
`536` view save

user output
`536` view save

Test 31

Verdict: ACCEPTED

input
`034704049619193895285878119956...` view save

correct output
`467` view save

user output
`467` view save

Test 32

Verdict: WRONG ANSWER

input
`336980270982636303223976539004...` view save

correct output
`543` view save

user output
`542` view save

Feedback: Incorrect character on line 1 col 3: expected "543", got "542"

Test 33

Verdict: ACCEPTED

input
`744311485456233719196607507429...` view save

correct output
`570` view save

user output
`570` view save

Test 34

Verdict: ACCEPTED

input
`289232763326229330631165228849...` view save

correct output
`563` view save

user output
`563` view save

Test 35

Verdict: WRONG ANSWER

input
`159941856600173517598637236698...` view save

correct output
`431` view save

user output
`430` view save

Feedback: Incorrect character on line 1 col 3: expected "431", got "430"

Aalto Competitive Programming 2026 - wk3 - Wed

Spin-Pop-Squeeze-Clap

Compiler report

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

Test 30

Test 31

Test 32

Test 33

Test 34

Test 35

Tasks

Submissions (aalto26cw_010)