CSES - Aalto Competitive Programming 2025 - wk9 - Wed

Submission details
Task:	Broken backspace
Sender:	aalto25j_001
Submission time:	2025-11-05 16:47:06 +0200
Language:	C++ (C++17)
Status:	READY
Result:	WRONG ANSWER

Test results
test	verdict	time
#1	ACCEPTED	0.00 s	details
#2	ACCEPTED	0.00 s	details
#3	WRONG ANSWER	0.00 s	details
#4	ACCEPTED	0.00 s	details
#5	RUNTIME ERROR	0.00 s	details
#6	RUNTIME ERROR	0.00 s	details
#7	WRONG ANSWER	0.00 s	details
#8	ACCEPTED	0.00 s	details
#9	ACCEPTED	0.00 s	details
#10	RUNTIME ERROR	0.00 s	details
#11	ACCEPTED	0.00 s	details
#12	ACCEPTED	0.00 s	details
#13	RUNTIME ERROR	0.00 s	details
#14	RUNTIME ERROR	0.00 s	details
#15	RUNTIME ERROR	0.00 s	details
#16	RUNTIME ERROR	0.00 s	details
#17	WRONG ANSWER	0.00 s	details
#18	RUNTIME ERROR	0.00 s	details
#19	RUNTIME ERROR	0.00 s	details
#20	RUNTIME ERROR	0.00 s	details
#21	RUNTIME ERROR	0.00 s	details
#22	RUNTIME ERROR	0.00 s	details
#23	WRONG ANSWER	0.00 s	details
#24	RUNTIME ERROR	0.00 s	details
#25	RUNTIME ERROR	0.00 s	details
#26	RUNTIME ERROR	0.00 s	details
#27	RUNTIME ERROR	0.00 s	details
#28	ACCEPTED	0.00 s	details
#29	RUNTIME ERROR	0.00 s	details
#30	RUNTIME ERROR	0.00 s	details
#31	RUNTIME ERROR	0.00 s	details
#32	RUNTIME ERROR	0.00 s	details
#33	RUNTIME ERROR	0.00 s	details
#34	RUNTIME ERROR	0.00 s	details
#35	RUNTIME ERROR	0.00 s	details
#36	RUNTIME ERROR	0.00 s	details
#37	RUNTIME ERROR	0.00 s	details
#38	RUNTIME ERROR	0.00 s	details
#39	RUNTIME ERROR	0.00 s	details
#40	RUNTIME ERROR	0.00 s	details
#41	RUNTIME ERROR	0.00 s	details
#42	RUNTIME ERROR	0.00 s	details
#43	RUNTIME ERROR	0.00 s	details
#44	RUNTIME ERROR	0.00 s	details
#45	RUNTIME ERROR	0.00 s	details
#46	RUNTIME ERROR	0.00 s	details
#47	RUNTIME ERROR	0.00 s	details
#48	RUNTIME ERROR	0.00 s	details
#49	RUNTIME ERROR	0.00 s	details
#50	RUNTIME ERROR	0.00 s	details
#51	RUNTIME ERROR	0.00 s	details
#52	RUNTIME ERROR	0.00 s	details
#53	RUNTIME ERROR	0.00 s	details
#54	RUNTIME ERROR	0.00 s	details
#55	RUNTIME ERROR	0.00 s	details
#56	RUNTIME ERROR	0.00 s	details
#57	RUNTIME ERROR	0.01 s	details
#58	RUNTIME ERROR	0.01 s	details

Compiler report

input/code.cpp: In function 'void solve()':
input/code.cpp:19:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   19 |    for (int i = 0; i < s.length(); i++) {
      |                    ~~^~~~~~~~~~~~
input/code.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |    for (int i = 0; i < t.length(); i++) {
      |                    ~~^~~~~~~~~~~~
input/code.cpp:38:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |   for (int i = 0; i < s.length(); i++) {
      |                   ~~^~~~~~~~~~~~
input/code.cpp:39:40: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::...

Code

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll; 
const ll INF = 1e18;
const int MAXN = 1e5 + 1;
 
string s, t;
int ar1[100], ar2[100];

void solve() {
   cin >> s >> t;
   
   if (s.length() < t.length()) {
       cout << "No";
       return;
   }
   
   for (int i = 0; i < s.length(); i++) {
       int ia = (int)s[i];
       ar1[ia]++;
   }
   
   for (int i = 0; i < t.length(); i++) {
       int ia = (int)t[i];
       ar2[ia]++;
   }
   
  for (int i = 97; i <= 122; i++) {
      if (ar1[i] < ar2[i]) {
       cout << "No";
       return;
    }
  }
  
  int indexb = 0;
  int miss = 0;
  for (int i = 0; i < s.length(); i++) {
      if (s[i] == t[indexb] and indexb < t.length()) indexb++;
      else miss++;
  }
//   cout << indexb << ' ' << miss << endl;
  
  if (indexb > t.length()) {
      cout << "No";
      return;
  } 
  if (miss + t.length() > s.length()) {
      cout << "No";
      return;
  }
    
  cout << "Yes";
    
   
}
 
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
 
    solve();
 
    return 0;
}

Test details

Test 1

Verdict: ACCEPTED

input
`y a` view save

correct output
`No` view save

user output
`No` view save

Test 2

Verdict: ACCEPTED

input
`y o` view save

correct output
`No` view save

user output
`No` view save

Test 3

Verdict: WRONG ANSWER

input
`bs bs` view save

correct output
`Yes` view save

user output
`No` view save

Feedback: Incorrect character on line 1 col 1: expected "Yes", got "No"

Test 4

Verdict: ACCEPTED

input
`vfj xz` view save

correct output
`No` view save

user output
`No` view save

Test 5

Verdict: RUNTIME ERROR

input
`yif yi` view save

correct output
`Yes` view save

user output
(empty)

Test 6

Verdict: RUNTIME ERROR

input
`ilzsl zio` view save

correct output
`No` view save

user output
(empty)

Test 7

Verdict: WRONG ANSWER

input
`azg a` view save

correct output
`Yes` view save

user output
`No` view save

Feedback: Incorrect character on line 1 col 1: expected "Yes", got "No"

Test 8

Verdict: ACCEPTED

input
`mmad ida` view save

correct output
`No` view save

user output
`No` view save

Test 9

Verdict: ACCEPTED

input
`rmfs ykcm` view save

correct output
`No` view save

user output
`No` view save

Test 10

Verdict: RUNTIME ERROR

input
`skqwu ewix` view save

correct output
`No` view save

user output
(empty)

Test 11

Verdict: ACCEPTED

input
`rkxgc wtep` view save

correct output
`No` view save

user output
`No` view save

Test 12

Verdict: ACCEPTED

input
`lcat lce` view save

correct output
`No` view save

user output
`No` view save

Test 13

Verdict: RUNTIME ERROR

input
`zmggznshn wibfc` view save

correct output
`No` view save

user output
(empty)

Error:

free(): invalid pointer

Test 14

Verdict: RUNTIME ERROR

input
`hjgri fxgxt` view save

correct output
`No` view save

user output
(empty)

Test 15

Verdict: RUNTIME ERROR

input
`aqjtb ci` view save

correct output
`No` view save

user output
(empty)

Test 16

Verdict: RUNTIME ERROR

input
`pnxnq pnxnq` view save

correct output
`Yes` view save

user output
(empty)

Test 17

Verdict: WRONG ANSWER

input
`smvvt s` view save

correct output
`Yes` view save

user output
`No` view save

Feedback: Incorrect character on line 1 col 1: expected "Yes", got "No"

Test 18

Verdict: RUNTIME ERROR

input
`dehlwu de` view save

correct output
`Yes` view save

user output
(empty)

Error:

free(): invalid pointer

Test 19

Verdict: RUNTIME ERROR

input
`frovxqt f` view save

correct output
`Yes` view save

user output
(empty)

Test 20

Verdict: RUNTIME ERROR

input
`isnaiipj isnai` view save

correct output
`Yes` view save

user output
(empty)

Test 21

Verdict: RUNTIME ERROR

input
`tvfqorxbf hsiaf` view save

correct output
`No` view save

user output
(empty)

Test 22

Verdict: RUNTIME ERROR

input
`hbeyzrmpxd hbeyzrm` view save

correct output
`Yes` view save

user output
(empty)

Error:

free(): invalid pointer

Test 23

Verdict: WRONG ANSWER

input
`cvfrdstyia cvf` view save

correct output
`Yes` view save

user output
`No` view save

Feedback: Incorrect character on line 1 col 1: expected "Yes", got "No"

Test 24

Verdict: RUNTIME ERROR

input
`fbqlgvoypsttw gkqjckcnpk` view save

correct output
`No` view save

user output
(empty)

Test 25

Verdict: RUNTIME ERROR

input
`qetmuxclwb grkdwns` view save

correct output
`No` view save

user output
(empty)

Test 26

Verdict: RUNTIME ERROR

input
`dnzdfqccei toeqt` view save

correct output
`No` view save

user output
(empty)

Test 27

Verdict: RUNTIME ERROR

input
`gigitadgqgktnmlucdrpjmfgzlugaj...` view save

correct output
`No` view save

user output
(empty)

Test 28

Verdict: ACCEPTED

input
`xhhwpsrfrqywdwqzzgdamkmrgutkys...` view save

correct output
`No` view save

user output
`No` view save

Test 29

Verdict: RUNTIME ERROR

input
`kczmpmbrcgapydtsdjmnhgdqjlmfiw...` view save

correct output
`Yes` view save

user output
(empty)

Test 30

Verdict: RUNTIME ERROR

input
`kdolwqxnrxoguefenlghfehedsiypn...` view save

correct output
`No` view save

user output
(empty)

Test 31

Verdict: RUNTIME ERROR

input
`eonoxjbddvetnyzwrscrakqugzyzut...` view save

correct output
`No` view save

user output
(empty)

Test 32

Verdict: RUNTIME ERROR

input
`noytqcblxxegczpwfbcfazouiidlvi...` view save

correct output
`Yes` view save

user output
(empty)

Test 33

Verdict: RUNTIME ERROR

input
`fsnlwzwzhhnnxopbmalxpghzqqhdsg...` view save

correct output
`No` view save

user output
(empty)

Test 34

Verdict: RUNTIME ERROR

input
`vsylfagbpuzphnpddomopbxpjvhzyc...` view save

correct output
`No` view save

user output
(empty)

Error:

free(): invalid pointer

Test 35

Verdict: RUNTIME ERROR

input
`uftadotelejkwprmhqvxquphskiibj...` view save

correct output
`No` view save

user output
(empty)

Test 36

Verdict: RUNTIME ERROR

input
`wmykhkomvlbaxmocfcdvkcnaqsuyeu...` view save

correct output
`No` view save

user output
(empty)

Test 37

Verdict: RUNTIME ERROR

input
`bfvdgidzpdbtkomnsdssudrgesexai...` view save

correct output
`No` view save

user output
(empty)

Test 38

Verdict: RUNTIME ERROR

input
`epehugfuqusovmdehqiyoefztwalqj...` view save

correct output
`Yes` view save

user output
(empty)

Test 39

Verdict: RUNTIME ERROR

input
`xtsdkcvujwifgijwhrxjyiepwhbmpd...` view save

correct output
`Yes` view save

user output
(empty)

Test 40

Verdict: RUNTIME ERROR

input
`suawolvogvzwqdpxqxjttthrtbhnqg...` view save

correct output
`No` view save

user output
(empty)

Test 41

Verdict: RUNTIME ERROR

input
`vupolhhxbovznwfxdpftypuarxylzk...` view save

correct output
`No` view save

user output
(empty)

Test 42

Verdict: RUNTIME ERROR

input
`pnrxvijvmrczriritjrreqdtlmvtsj...` view save

correct output
`No` view save

user output
(empty)

Test 43

Verdict: RUNTIME ERROR

input
`nquhecwwloskilrbxfiqlzxyhggmim...` view save

correct output
`Yes` view save

user output
(empty)

Test 44

Verdict: RUNTIME ERROR

input
`yvzchujqnoihsrlbogoecilotaepru...` view save

correct output
`No` view save

user output
(empty)

Test 45

Verdict: RUNTIME ERROR

input
`bkbntccvyxeaqspsxlnqgybjhvkyno...` view save

correct output
`Yes` view save

user output
(empty)

Test 46

Verdict: RUNTIME ERROR

input
`pycbqedrafcfqifliujkykggxrusll...` view save

correct output
`Yes` view save

user output
(empty)

Test 47

Verdict: RUNTIME ERROR

input
`ntuyzptgfhnqgsicdshcwhcravwemj...` view save

correct output
`Yes` view save

user output
(empty)

Test 48

Verdict: RUNTIME ERROR

input
`mwdrtpocarqfmmrhlnrmaqlqkmwcwb...` view save

correct output
`No` view save

user output
(empty)

Test 49

Verdict: RUNTIME ERROR

input
`ylqvocuyflcqydkppyrmygbopzaciy...` view save

correct output
`No` view save

user output
(empty)

Test 50

Verdict: RUNTIME ERROR

input
`bcfrdxcxwypdknwsnsheysairkjruu...` view save

correct output
`No` view save

user output
(empty)

Test 51

Verdict: RUNTIME ERROR

input
`luqybuerbcnshnudgittqrpncjmhjk...` view save

correct output
`Yes` view save

user output
(empty)

Test 52

Verdict: RUNTIME ERROR

input
`izamctfueldbjhauzhxhdvbaiedkxc...` view save

correct output
`No` view save

user output
(empty)

Test 53

Verdict: RUNTIME ERROR

input
`xxuxrrtdpvefxgxikyxvzvjjlnrnzv...` view save

correct output
`No` view save

user output
(empty)

Test 54

Verdict: RUNTIME ERROR

input
`vzckilqzoxmcrupzvrkqtjjokjcyeo...` view save

correct output
`No` view save

user output
(empty)

Test 55

Verdict: RUNTIME ERROR

input
`elesagcjlrhfflaqxsmukgbjiiyyyd...` view save

correct output
`Yes` view save

user output
(empty)

Test 56

Verdict: RUNTIME ERROR

input
`ydbfkccnflhkevsfnhrsgfisocskfs...` view save

correct output
`Yes` view save

user output
(empty)

Test 57

Verdict: RUNTIME ERROR

input
`implxialwixramglvesaxoulttxcij...` view save

correct output
`No` view save

user output
(empty)

Test 58

Verdict: RUNTIME ERROR

input
`uarjxljelkshogcskndxmcouwesvrt...` view save

correct output
`No` view save

user output
(empty)

Aalto Competitive Programming 2025 - wk9 - Wed

Broken backspace

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

Test 36

Test 37

Test 38

Test 39

Test 40

Test 41

Test 42

Test 43

Test 44

Test 45

Test 46

Test 47

Test 48

Test 49

Test 50

Test 51

Test 52

Test 53

Test 54

Test 55

Test 56

Test 57

Test 58

Tasks

Submissions (aalto25j_001)