Submission details
Task:Palindromi
Sender:OorigamiK
Submission time:2025-10-27 10:35:53 +0200
Language:C++ (C++20)
Status:READY
Result:100
Feedback
groupverdictscore
#1ACCEPTED100
Test results
testverdicttime
#1ACCEPTED0.00 sdetails
#2ACCEPTED0.00 sdetails
#3ACCEPTED0.00 sdetails
#4ACCEPTED0.00 sdetails
#5ACCEPTED0.00 sdetails
#6ACCEPTED0.00 sdetails
#7ACCEPTED0.00 sdetails
#8ACCEPTED0.00 sdetails
#9ACCEPTED0.00 sdetails
#10ACCEPTED0.00 sdetails

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:12:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   12 |     for (int i=0;i<(str.length()+1)/2;i++){
      |                  ~^~~~~~~~~~~~~~~~~~~

Code

#include <iostream>
#include <string>
#include <algorithm>

using namespace std;

int main(){
    string str;
    cin>>str;

    int count=0;
    for (int i=0;i<(str.length()+1)/2;i++){
        if (str[i]!=str[str.length()-1-i]){
            count++;
        }
    }
    cout<<count<<"\n";
    return 0;
}

Test details

Test 1 (public)

Verdict: ACCEPTED

input
datatahti

correct output
3

user output
3

Test 2 (public)

Verdict: ACCEPTED

input
saippuakauppias

correct output
0

user output
0

Test 3 (public)

Verdict: ACCEPTED

input
a

correct output
0

user output
0

Test 4 (public)

Verdict: ACCEPTED

input
aa

correct output
0

user output
0

Test 5 (public)

Verdict: ACCEPTED

input
abc

correct output
1

user output
1

Test 6 (public)

Verdict: ACCEPTED

input
aybabtu

correct output
2

user output
2

Test 7 (public)

Verdict: ACCEPTED

input
abacabaca

correct output
2

user output
2

Test 8 (public)

Verdict: ACCEPTED

input
bbbbaaaababbbbbaabaaabaaaaabab...

correct output
23

user output
23

Test 9 (public)

Verdict: ACCEPTED

input
acbaaabaabaddaccdcccbcdbdddacd...

correct output
38

user output
38

Test 10 (public)

Verdict: ACCEPTED

input
uaqtmfftecryanvpshxsodjrllqnqp...

correct output
49

user output
49