criyle/codenet-compile-errors huggingface dataset:
Language: Java

public class Main {

	public static void main(String[] args) {

		try(Scanner sc = new Scanner(System.in)) {
			String s = sc.next();
			int k = sc.nextInt();
			String[] splited = s.split("");
			int num = 1;
			long ans = 0;
			String pre = null;
			String first = s.substring(0, 1);
			String end = s.substring(s.length() - 1, s.length());
			boolean top = true;
			boolean odd = false;
			for(String hoge : splited) {
				if(pre == null) {
					pre = hoge;
				} else if(pre.equals(hoge)) {
					num++;
				} else {
					if(top && num % 2 != 0 && num != 1) {
						odd = true;
					}
					top = false;
					ans += (int)Math.floor(num / 2d);
					num = 1;
					pre = hoge;
				}
			}
			if(top && num % 2 != 0 && num != 1) {
				odd = true;
			}
			ans += (int)Math.floor(num / 2d);
			if(first.equals(end) && odd) ans++;
			System.out.println(ans * k);
		}

	}

}


Compiler output:
Main.java:5: error: cannot find symbol
		try(Scanner sc = new Scanner(System.in)) {
		    ^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
		try(Scanner sc = new Scanner(System.in)) {
		                     ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i++)
#define sz(x) int(x.size())
using namespace std;
typedef long long ll;
const long long  mod = 1000000007;

//abaaa -> abaaaabaa

int main(){
  string s;
  ll k;
  cin >> s >> k;

  ll n = sz(s);
  ll ans = 0;
  for(int i = n-1; i > 0; i--){
    if(s[i-1] == s[i]) {
      ans++;
      i--;
    }
  }
  ans *= k;
  //if(s[n-1] == s[n-2]) ans--;


  ll a,b;
  for(int i = 0; i<n-1; i++){
    if(s[i] == s[i+1]) a++;
    else braek;
  }
  for(int i = n-1; i>0; i++){
    if(s[i] == s[i-1]) b++;
    else braek;
  }

  if(s[0] == s[n-1]) ans -= (k-1)(a/2+b/2-(a+b)/2);

  
  cout << ans << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:30:10: error: 'braek' was not declared in this scope; did you mean 'brk'?
   30 |     else braek;
      |          ^~~~~
      |          brk
a.cc:34:10: error: 'braek' was not declared in this scope; did you mean 'brk'?
   34 |     else braek;
      |          ^~~~~
      |          brk
a.cc:37:34: error: expression cannot be used as a function
   37 |   if(s[0] == s[n-1]) ans -= (k-1)(a/2+b/2-(a+b)/2);
      |                             ~~~~~^~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i++)
#define sz(x) int(x.size())
using namespace std;
typedef long long ll;
const long long  mod = 1000000007;

//abaaa -> abaaaabaa

int main(){
  string s;
  ll k;
  cin >> s >> k;

  ll n = sz(s);
  ll ans = 0;
  for(int i = n-1; i > 0; i--){
    if(s[i-1] == s[i]) {
      ans++;
      i--;
    }
  }
  ans *= k;
  //if(s[n-1] == s[n-2]) ans--;


  ll n,m;
  for(int i = 0; i<n-1; i++){
    if(s[i] == s[i+1]) n++;
    else braek;
  }
  for(int i = n-1; i>0; i++){
    if(s[i] == s[i-1]) m++;
    else braek;
  }

  if(s[0] == s[n-1]) ans -= (k-1)(n/2+m/2-(n+m)/2);

  
  cout << ans << endl;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:27:6: error: redeclaration of 'll n'
   27 |   ll n,m;
      |      ^
a.cc:15:6: note: 'll n' previously declared here
   15 |   ll n = sz(s);
      |      ^
a.cc:30:10: error: 'braek' was not declared in this scope; did you mean 'brk'?
   30 |     else braek;
      |          ^~~~~
      |          brk
a.cc:34:10: error: 'braek' was not declared in this scope; did you mean 'brk'?
   34 |     else braek;
      |          ^~~~~
      |          brk
a.cc:37:34: error: expression cannot be used as a function
   37 |   if(s[0] == s[n-1]) ans -= (k-1)(n/2+m/2-(n+m)/2);
      |                             ~~~~~^~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i=0; i<(int)(n); i++)
#define REP(i,m,n) for(ll i=(ll)(m);i<(ll)(n);i++)
using namespace std;
using ll = long long;
using P = pair<int, int>;

int main() {
  string s; int k; cin >> s >> k;
  int sn = s.size();
  ll sum = 0, ans = 0;
  bool flag = false;
  int mc = 0;
  int l = 0, r = sn - 1, lc = 0, rc = 0;
  if (s[l] == s[r]) {
    while(s[l] == s[0] && l < sn) {lc++; l++;}
    while(s[r] == s[sn-1] && r >= 0) {rc++; r--;}
    if (l == sn) {
      cout << sn *  / 2 << endl;
      return 0;
    }
    if (lc+rc == 2) mc = 1;
    else mc = (lc+rc)/2;
    ans += lc / 2;
    ans += rc / 2;
    ans += mc * (k-1);
  }
  for (int i = l; i<=r; i++) {
    int cnt = 1;
    while(i+1<=r && s[i] == s[i+1]) {
      i++;
      cnt++;
    }
    sum += cnt / 2;
  }
  ans += sum * k;
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:21: error: expected primary-expression before '/' token
   19 |       cout << sn *  / 2 << endl;
      |                     ^
Language: C++

#include <bits/stdc++.h>
using namespace std;

#define all(v) v.begin(), v.end()
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define intll int long long
const int INF = 1e9;
const int MOD = 1e9 + 7;

int main() {
  string s ; 
  intll k ; 
  cin >> s >> k   ;
  s += s.at(0) + '@' ;
 
  intll ans = 0 ;
  intll now = 0 ;
  int x = s.size() -2 
  rep(i,s.size()-1){
    if(s.at(i) == s.at(i+1)) now ++ ;
    else {  
      ans += (now+1)/2 ;
      if(i != x )
      now =0 ;
    }
  }
  ans *= k ;
  if(now%2 == 1 ) ans -- ;
    
  cout << ans    <<endl ;

}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:19: error: expected ',' or ';' before 'for'
    5 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                   ^~~
a.cc:19:3: note: in expansion of macro 'rep'
   19 |   rep(i,s.size()-1){
      |   ^~~
a.cc:19:7: error: 'i' was not declared in this scope
   19 |   rep(i,s.size()-1){
      |       ^
a.cc:5:35: note: in definition of macro 'rep'
    5 | #define rep(i, n) for (int i = 0; i < (int)(n); i++)
      |                                   ^
Language: C

#include <bits/stdc++.h>
using namespace std;
struct Fast {Fast(){std::cin.tie(0);ios::sync_with_stdio(false);}} fast;
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define fi first
#define se second
#define reps(i, a, n) for (int i = (a); i < (n); ++i)
#define rep(i, n) reps(i, 0, n)
#define deps(i, a, n) for (int i = (a); i >= (n); --i)
#define dep(i, n) deps(i, n, 0)
#define inf 2147483647
#define int long long

signed main()
{
	string s;
	int k, l, ans = 0, tmp;

	cin >> s;
	cin >> k;

	l = s.length();

	tmp = 0;
	rep (i, l)
	{
		tmp++;
		if (i == l - 1 || s[i] != s[i + 1])
		{
			ans += tmp / 2;
			tmp = 0;
		}
	}

	ans *= k;

	if (s[0] == s[l - 1])
	{
		tmp = 1;
		rep (i, l - 1)
		{
			if (s[i] != s[i + 1]) break;
			tmp++;
		}
		if (tmp == l)
		{
			cout << l * k / 2 << endl;
			return 0;
		}
		if (tmp % 2)
		{
			tmp = 1;
			rep (i, l - 1)
			{
				if (s[l - 1 - i] != s[l - 2 - i]) break;
				tmp++;
			}
			if (tmp % 2) ans += k - 1;
		}
	}

	cout << ans << endl;
}


Compiler output:
main.c:1:10: fatal error: bits/stdc++.h: No such file or directory
    1 | #include <bits/stdc++.h>
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using ll = long long;
using namespace std;
#define rep(i, n) for (int i = 0, i##_len = (int)(n); i < i##_len; i++)
#define reps(i, n) for (int i = 1, i##_len = (int)(n); i <= i##_len; i++)
#define rrep(i, n) for (int i = ((int)(n)-1); i >= 0; i--)
#define rreps(i, n) for (int i = ((int)(n)); i > 0; i--)
#define repi(i, x) \
	for (auto i = (x).begin(), i##_fin = (x).end(); i != i##_fin; i++)
#define all(x) (x).begin(), (x).end()
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define solve(a) ((a) ? "Yes" : "No")
typedef vector<int> Vi;
typedef vector<Vi> VVi;
typedef pair<int, int> Pi;
typedef vector<Pi> VPi;
typedef vector<long long> V;
typedef vector<V> VV;
typedef pair<long long, long long> P;
typedef vector<P> VP;
template <class T>
inline bool chmax(T& a, T b) {
	if (a < b) {
		a = b;
		return 1;
	}
	return 0;
}
template <class T>
inline bool chmin(T& a, T b) {
	if (a > b) {
		a = b;
		return 1;
	}
	return 0;
}
const long long INFLL = 1LL << 60;
const int INF         = 1 << 30;
const double PI       = acos(-1);
int main() {
	string s;
	int k;
	ll ans   = 0LL;
	ll in    = 0LL;
	int same = 0;
	ll out   = 0LL;
	cin >> s >> k;
	char last = 0;
	rep(i, s.size()) {
		if (last == s[i]) {
			in++;

			last = 0;
		} else {
			last = s[i];
		}
		if (i != 0 and s[i] == s[i - 1]) {
			same++;
		}
	}
	if (last == s[0]) {
		out++;
	}

	if (same + 1 == s.size() and same % 2 == 0) {
		ans = (s.size() * k) / 2;
	} else if (same + 1 == s.size()) {
		ans = (s.size() * k) / 2;
	})
		else {
		ans = in * k + out * (k - 1);
	}
	cout << ans << endl;
}
// iii (1) ...3
//iii iii (3)...6
//iii iii iii (4)...9
//ii (1)..2
//ii ii (2)...4

Compiler output:
a.cc: In function 'int main()':
a.cc:72:10: error: expected primary-expression before ')' token
   72 |         })
      |          ^
Language: C++

#include <algorithm>
#include <cstring>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <string>
#include <vector>
using namespace std;
#define rep(i, n) for (int i = 0; i < (n); i++)
using ll = long long;
using P = pair<int, int>;
const ll INF = 1001001001;

int main() {
  string s;
  cin >> s;
  ll k;
  cin >> k;

  ll cnt = 0;
  s.push_back(s[0]);
  for (ll i = 0, i < s.size() - 1; i++) {
    if (s[i] == s[i + 1]) {
      i++;
      cnt++;
    }
  }
  ll ans = cnt * k;
  cout << ans;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:23:19: error: expected ';' before '<' token
   23 |   for (ll i = 0, i < s.size() - 1; i++) {
      |                   ^~
      |                   ;
a.cc:23:20: error: expected primary-expression before '<' token
   23 |   for (ll i = 0, i < s.size() - 1; i++) {
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
constexpr long long MOD = 1000000007;
constexpr long long INF = 1LL << 60;
const long double PI = acosl(-1.0);
constexpr long double EPS = 1e-11;
template<class T> inline bool chmin(T& a, T b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}
template<class T> inline bool chmax(T& a, T b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}
int main(){
    string s;
    ll k;
    cin >> s >> k;
    ll n = s.size();
    map<char, ll> mp;
    for (ll i = 0; i < n;i++){
        mp[s[i]]++;
    }
    if(mp.size()==1){
        cout << k * n / 2 << endl;
    }
    else if(s[0]!=s[n-1]){
        ll tmp = 1;
        ll ans = 0;
        for (ll i = 0; i < n - 1; i++) {
            if (s[i] == s[i + 1]) tmp++;
            else {
                ans += tmp / 2;
                tmp = 0;
            }
        }
        cout << ans << endl;
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:45:6: error: expected '}' at end of input
   45 |     }
      |      ^
a.cc:22:11: note: to match this '{'
   22 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

const int N = 105;
typedef long long LL;

int n;
char s[N];
LL ans, f[N][3], k, g[N][3];

int main() {
	cin>>(s + 1)>>k;
	n = strlen(s + 1);
	f[1][0] = 0, f[1][1] = 0, f[1][2] = 1;
	g[1][0] = 1, g[1][0] = 1e9, g[1][1] = 1;
	for(int i = 2; i <= n; i++) {
		if(s[i] == s[i - 1]) {
			f[i][1] = f[i - 1][2];
			f[i][2] = f[i - 1][0];
			g[i][1] = g[i - 1][2];
			g[i][2] = g[i - 1][0];
		}
		else {
			f[i][1] = f[i - 1][0];
			f[i][2] = f[i - 1][0] + 1;
			g[i][1] = g[i - 1][0];
			g[i][2] = g[i - 1][0] + 1;
		}
		g[i][0] = min(g[i][1], g[i][2]);
		f[i][0] = min(f[i][1], f[i][2]);
	}
	if(s[1] != s[n]) 
		cout<<f[n][0]*k<<endl;
	else 
		cout<<min(f[i][2]*(k - 1) + f[i][0], g[i][0]*(k - 1) + f[i][0])<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:29: error: 'i' was not declared in this scope
   35 |                 cout<<min(f[i][2]*(k - 1) + f[i][0], g[i][0]*(k - 1) + f[i][0])<<endl;
      |                             ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i = 0;i < (n);i++)
using namespace std;
using ll = long long;
using pii = pair<int,int>;

const int INF = 2e9;

int main(){
    string s;
    cin >> s;
    ll k;
    cin >> k;
    int t = s.size();
    int cnt = 0;
    int c = 1;
    rep(i,t){
        if(a[i] != a[i+1] || i == t-1){
            cnt += c - 1;
            c = 1;
        }
        if(a[i] == a[i+1])c++;
    }
    cout << cnt * k << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:18:12: error: 'a' was not declared in this scope
   18 |         if(a[i] != a[i+1] || i == t-1){
      |            ^
a.cc:22:12: error: 'a' was not declared in this scope
   22 |         if(a[i] == a[i+1])c++;
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;

int main() {
  string s;
  cin >> s;
  ll k;
  cin >> k;
  ll ans=0;
  for(int i=1;i<s.size();i++){
    if(s.at(i)==s.at(i-1)){
      ans++;
      s.at(i)='A'
    }
  }
  if(s.size()>2 && s.at(0)==s.at(s.size()-1)){
  ans++;
  cout << ans*k-1 << endl;
}
 else
 cout << ans*k << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:18: error: expected ';' before '}' token
   14 |       s.at(i)='A'
      |                  ^
      |                  ;
   15 |     }
      |     ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;

int main() {
  string s;
  cin >> s;
  ll k;
  cin >> k;
  ll ans=0;
  for(int i=1;i<s.size();i++){
    if(s.at(i)==s.at(i-1)){
      ans++;
      s.insert(i,1,A);
    }
  }
  if(s.at(0)==s.at(s.size()-1))
    ans++;
  cout << ans*k-1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: 'A' was not declared in this scope
   14 |       s.insert(i,1,A);
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;

int main() {
  string s;
  cin >> s;
  ll k;
  cin >> k;
  ll ans=0;
  for(int i=1;i<s.size();i++){
    if(s.at(i)==s.at(i-1)){
      ans++;
      s.insert(i,1,$);
    }
  }
  if(s.at(0)==s.at(s.size()-1))
    ans++;
  cout << ans*k-1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:20: error: '$' was not declared in this scope
   14 |       s.insert(i,1,$);
      |                    ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i++)
using namespace std;
using ll = long long;
using P = pair<int,int>;

int main() {
  string s;
  cin >> s;
  int k;
  cin >> k;
  if(s==string(s.size(),s[0])) {
    cout<<s.size()*k/2<<endl;
    retuen 0;
  }
  ll ans=0;
  for(int i=1; s[i]!='\0'; i++) {
    if(s[i]==s[i-1]) {
      ans++;
      s[i]='*';
    }
  }
  ans*=k;
  if(s.size()>2&&s[0]==s[2]&&s[0]==s[s.size()-1]) ans+=k-1;
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:5: error: 'retuen' was not declared in this scope
   14 |     retuen 0;
      |     ^~~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for (int i = 0; i < (n); i++)
using namespace std;
using ll = long long;
using P = pair<int,int>;

int main() {
  string s;
  cin >> s;
  if(s==string(s.size(),s[0])) {
    cout<<s.size()*k/2<<endl;
    retuen 0;
  }
  int k;
  cin >> k;
  ll ans=0;
  for(int i=1; s[i]!='\0'; i++) {
    if(s[i]==s[i-1]) {
      ans++;
      s[i]='*';
    }
  }
  ans*=k;
  if(s.size()>2&&s[0]==s[2]&&s[0]==s[s.size()-1]) ans+=k-1;
  cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:20: error: 'k' was not declared in this scope
   11 |     cout<<s.size()*k/2<<endl;
      |                    ^
a.cc:12:5: error: 'retuen' was not declared in this scope
   12 |     retuen 0;
      |     ^~~~~~
Language: C++

//メモ：場合分けせずに解く（シミュレーションに近い感じ）
//→snuke

Compiler output:
/usr/bin/ld: /usr/lib/gcc/x86_64-linux-gnu/14/../../../x86_64-linux-gnu/Scrt1.o: in function `_start':
(.text+0x17): undefined reference to `main'
collect2: error: ld returned 1 exit status
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
string S;
  int64_t K;
  cin>>S>>K;
  int64_t sum=1;
  int64_t ans=0;
  for(int i=1;i<N;i++){
    if(S.at(i)==S.at(i-1))
      sum++;
    else{
    ans+=sum/2; sum=0;
    }
  }ans*=K;
  if(S.at(0)==S.at(N-1)){
  int a,b; a=1; b=1;
    for(int i=1;i<N;i++){
    if(S.at(i)==S.at(i-1))
      a++;
      else
        break;
    }for(int i=N-1;1<=i;i--){
    if(S.at(i)==S.at(i-1))
      b++;
      else
        break;
    } if(a%2==1 && b%2==1)
      ans+=(K-1);
  
  }cout<<ans<<endl;
   return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:17: error: 'N' was not declared in this scope
    9 |   for(int i=1;i<N;i++){
      |                 ^
a.cc:16:20: error: 'N' was not declared in this scope
   16 |   if(S.at(0)==S.at(N-1)){
      |                    ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
long long c,d,e,f,g=0; 
long long counter=0;
long long counter1=1;
string S; cin>>S;
char a=S.at(0);
char b=a;
for(int i=1;i<S.size();i++){
if((a==S.at(i))){
counter1++;}
else{
if(g==0){
c==counter1;}
counter+=counter1/2;
a=S.at(i);
counter1=1;}
if(a==b){
d=(c+counter1)/2;}
else{
counter+=counter1/2;}
cin>>e;
cout<<counter*e+d*(e-1)<<endl;}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:32: error: expected '}' at end of input
   24 | cout<<counter*e+d*(e-1)<<endl;}
      |                                ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
long long c,d,e,f,g=0; cin>>a>>b>>c;
long long counter=0;
long long counter1=1;
string S; cin>>S;
char a=S.at(0);
char b=a;
for(int i=1;i<S.size();i++){
if((a==S.at(i))){
counter1++;}
else{
if(g==0){
c==counter1;}
counter+=counter1/2;
a=S.at(i);
counter1=1;}
if(a==b){
d=(c+counter1)/2;}
else{
counter+=counter1/2;}
cin>>e;
cout<<counter*e+d*(e-1)<<endl;}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:29: error: 'a' was not declared in this scope
    4 | long long c,d,e,f,g=0; cin>>a>>b>>c;
      |                             ^
a.cc:4:32: error: 'b' was not declared in this scope
    4 | long long c,d,e,f,g=0; cin>>a>>b>>c;
      |                                ^
a.cc:24:32: error: expected '}' at end of input
   24 | cout<<counter*e+d*(e-1)<<endl;}
      |                                ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;

typedef long long llint;
typedef long double ld;

#define inf 1e18
#define mod 1000000007
priority_queue<llint,vector<llint>,greater<llint> > que;
priority_queue<llint> Que;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }


string s;
llint k;

void solve(){
  cin >> s;
  cin >> k;
  llint n=s.size();
  llint ans=0;
  llint cnt=1;
  for(int i=1;i<n;i++){
      if(s[i-1]==s[i])cnt++;
      if(s[i-1]!=s[i] && cnt>1){
          ans+=(cnt/2)*k;
          cnt=1;
      }
  } 
  if(n==cnt)ans+=(n*k)/2;
  else if(cnt>1)ans+=(cnt/2)*k;
  if(s[0]==s[n-1] && n=!=cnt){
      llint a=0,b=0;
      for(;s[a]==s[0];a++);
      for(;s[n-b-1]==s[n-1];b++);
      ans-=(((a/2)+(b/2))-(a+b)/2)*(k-1);
  }
  cout << ans << endl; 
}

int main(){
  solve();
  return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:32:24: error: expected primary-expression before '!=' token
   32 |   if(s[0]==s[n-1] && n=!=cnt){
      |                        ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;

typedef long long llint;
typedef long double ld;

#define inf 1e18
#define mod 1000000007
priority_queue<llint,vector<llint>,greater<llint> > que;
priority_queue<llint> Que;
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }


string s;
llint k;

void solve(){
  cin >> s;
  cin >> k;
  llint n=s.size();
  llint ans=0;
  llint cnt=1;
  for(int i=1;i<n;i++){
      if(s[i-1]==s[i])cnt++;
      if(s[i-1]!=s[i] && cnt>1){
          ans+=(cnt/2)*k;
          cnt=1;
      }
  } 
  if(n==cnt)ans+=(n*k)/2
  else if(cnt>1)ans+=(cnt/2)*k;
  if(s[0]==s[n-1]){
      llint a=0,b=0;
      for(;s[a]==s[0];a++);
      for(;s[n-b-1]==s[n-1];b++);
      ans-=(((a/2)+(b/2))-(a+b)/2)*(k-1);
  }
  cout << ans << endl; 
}

int main(){
  solve();
  return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:30:25: error: expected ';' before 'else'
   30 |   if(n==cnt)ans+=(n*k)/2
      |                         ^
      |                         ;
   31 |   else if(cnt>1)ans+=(cnt/2)*k;
      |   ~~~~
Language: C++

long long f(string s) {
    int N = s.size();
    long long sum = 0;
    for (long long i = 0, j = 0; i < N; i = j) {
        while (j < N && s[i] == s[j])j++;
        sum += (j - i) / 2;
    }
    return sum;
}

int main() {

    string S;
    cin >> S;

    long long N = S.size();

    long long K;
    cin >> K;

    bool same = true;
    for (int i = 0; i < N; i++) if (S[0] != S[i]) same = false;
    if (same) {
        cout << (N * K) / 2 << endl;
        return 0;
    }

    long long d1 = f(S);
    long long d2 = f(S + S);

    long long a = d1;
    long long d = d2 - d1;

    cout << a + (K -1) * d << endl;

    return 0;
}



Compiler output:
a.cc:1:13: error: 'string' was not declared in this scope
    1 | long long f(string s) {
      |             ^~~~~~
a.cc: In function 'int main()':
a.cc:13:5: error: 'string' was not declared in this scope
   13 |     string S;
      |     ^~~~~~
a.cc:14:5: error: 'cin' was not declared in this scope
   14 |     cin >> S;
      |     ^~~
a.cc:14:12: error: 'S' was not declared in this scope
   14 |     cin >> S;
      |            ^
a.cc:24:9: error: 'cout' was not declared in this scope
   24 |         cout << (N * K) / 2 << endl;
      |         ^~~~
a.cc:24:32: error: 'endl' was not declared in this scope
   24 |         cout << (N * K) / 2 << endl;
      |                                ^~~~
a.cc:28:21: error: 'f' cannot be used as a function
   28 |     long long d1 = f(S);
      |                    ~^~~
a.cc:29:27: error: 'f' cannot be used as a function
   29 |     long long d2 = f(S + S);
      |                           ^
a.cc:34:5: error: 'cout' was not declared in this scope
   34 |     cout << a + (K -1) * d << endl;
      |     ^~~~
a.cc:34:31: error: 'endl' was not declared in this scope
   34 |     cout << a + (K -1) * d << endl;
      |                               ^~~~
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#include<stdio.h>
#include<vector>
#include<functional>
#include<algorithm>
#include<stdlib.h>
#include<string>
#include<cmath>
#include<deque>
#include<set>
using namespace std;
typedef long long ll;
#define rep(i,a,b) for(int i=a;i<b;i++)
#define all(_x) _x.begin(), _x.end()
#define r_sort(_x) sort(_x.begin(), _x.end(), std::greater<int>())
#define INF 1LL << 60
#define MAX 1000000000
int gcd(int a, int b) { return a % b == 0 ? b : gcd(b, a % b); }
int main() {
	ll k, ans = 0, len;
	char str[200];
	scanf("%s", str);
	scanf("%lld", &k);
	len = strlen(str);
	if (str[0] == str[len - 1])ans++;
	rep(i, 0, len - 2) {
		if (str[i] == str[i + 1])ans++, i++;
	}
	printf("%lld\n", ans * k);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:15: error: 'strlen' was not declared in this scope
   24 |         len = strlen(str);
      |               ^~~~~~
a.cc:11:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
   10 | #include<set>
  +++ |+#include <cstring>
   11 | using namespace std;
Language: C++

#include <bits/stdc++.h>
typedef long long ll;
using namespace std;

const int INF = 1e9;
const int MOD = 1e9+7;
const ll LINF = 1e18;

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) for(int i=0;i<(n);++i)
#define REPR(i,n) for(int i=n;i>=0;i--)
#define ALL(v) (v.begin(),v.end())
#define COUT(x) cout<<(x)<<endl

int main(){
    string s;
    int k;
    cin >> s >> k;
    int n = s.size()-1;
    bool flag = false;
    
    if(s[0]==s[1]||s[n]==s[n-1])flag = true;
    if(s[0]==s[s.size()-1]){
        if(flag)count -= k;
    }
    
    int count = 0;
    for(int i=1;i<s.size();i++){
        if(s[i-1]==s[i])count++;
    }
    
    COUT(count);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:26: error: overloaded function with no contextual type information
   24 |         if(flag)count -= k;
      |                          ^
Language: C++

#include<bits/stdc++.h>

using namespace std;
using ll = long long int;

int main(void) {
    cin.tie(0); ios::sync_with_stdio(false);

    string s;
    cin >> s;

    ll r = 0;
    for(ll i=0; i<s.size(); i++)
        if(s[i] == s[i+1]) r++;
    r *= k;

    if(s[0] == s[n-1])
        r += k-1;

    cout << r << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:10: error: 'k' was not declared in this scope
   15 |     r *= k;
      |          ^
a.cc:17:18: error: 'n' was not declared in this scope
   17 |     if(s[0] == s[n-1])
      |                  ^
Language: C++

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func out(x ...interface{}) {
	fmt.Println(x...)
}

var sc = bufio.NewScanner(os.Stdin)

func getInt() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func getString() string {
	sc.Scan()
	return sc.Text()
}

// min, max, asub, absなど基本関数
func max(a, b int) int {
	if a > b {
		return a
	}
	return b
}

func min(a, b int) int {
	if a < b {
		return a
	}
	return b
}

func asub(a, b int) int {
	if a > b {
		return a - b
	}
	return b - a
}

func abs(a int) int {
	if a >= 0 {
		return a
	}
	return -a
}

func main() {
	sc.Split(bufio.ScanWords)

	s := []byte(getString())
	k := getInt()

	cnt := 0
	for i := 1; i < len(s); i++ {
		if s[i] == s[i-1] {
			s[i] = byte(0)
			cnt++
		}
	}
	x := 0
	if s[len(s)-1] != 0 && s[0] == s[len(s)-1] {
		x = 1
	}
	//out(cnt, x, k)
	out(cnt*k + x*(k-1))
}


Compiler output:
a.cc:1:1: error: 'package' does not name a type
    1 | package main
      | ^~~~~~~
a.cc:10:26: error: expected unqualified-id before ')' token
   10 | func out(x ...interface{}) {
      |                          ^
a.cc:14:1: error: 'var' does not name a type
   14 | var sc = bufio.NewScanner(os.Stdin)
      | ^~~
a.cc:25:1: error: 'func' does not name a type
   25 | func getString() string {
      | ^~~~
a.cc:31:1: error: 'func' does not name a type
   31 | func max(a, b int) int {
      | ^~~~
a.cc:38:1: error: 'func' does not name a type
   38 | func min(a, b int) int {
      | ^~~~
a.cc:45:1: error: 'func' does not name a type
   45 | func asub(a, b int) int {
      | ^~~~
a.cc:52:1: error: 'func' does not name a type
   52 | func abs(a int) int {
      | ^~~~
a.cc:59:1: error: 'func' does not name a type
   59 | func main() {
      | ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pll = pair<ll,ll>;
using pii = pair<int,int>;
#define ALL(x) (x).begin(),(x).end()

int main(){
	string S;
	ll K;
	cin >> S >> K;
	ll i=0;
	ll ans_one = 0;
	while(i < S.size()) {
		ll cnt = 1;
		while(S[i] == S[i+cnt] and i+cnt < S.size()) {
			cnt++;
		}
		ans_one += (cnt/2);
		i += cnt;
	}
	if(S[0] == S[S.size()-1]) {
		ll fcnt = 1, bcnt = 1;
		while(S[0] == S[fcnt] and fcnt < S.size()) fcnt++;
		while(S[S.size()-1] == S[S.size()-1-bcnt] and bcnt < S.size()) bcnt++;
		if(fcnt == S.size()) continue;
		cout << ans_one * K + (K-1) * ((fcnt+bcnt)/2 - fcnt/2 - bcnt/2) << endl;
	} else {
		cout << ans_one * K << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:38: error: continue statement not within a loop
   26 |                 if(fcnt == S.size()) continue;
      |                                      ^~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using pll = pair<ll,ll>;
using pii = pair<int,int>;
#define ALL(x) (x).begin(),(x).end()

int main(){
	string S;
	ll K;
	cin >> S >> K;
	ll i=0;
	ll ans_one = 0;
	while(i < S.size()) {
		ll cnt = 1;
		while(S[i] == S[i+cnt] and i+cnt < S.size()) {
			cnt++;
		}
		ans_one += (cnt/2);
		i += cnt;
	}
	if(S[0] == S[S.size()-1]) {
		ll fcnt = 1, bcnt = 1;
		while(S[0] == S[fcnt] and fcnt < S.size()) fcnt++;
		while(S[S.size()-1] == S[S.size()-1-bcnt] and bcnt < S.size()) bcnt++;
		if(fcnt == S.size()) break;
		cout << ans_one * K + (K-1) * ((fcnt+bcnt)/2 - fcnt/2 - bcnt/2) << endl;
	} else {
		cout << ans_one * K << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:38: error: break statement not within loop or switch
   26 |                 if(fcnt == S.size()) break;
      |                                      ^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
    string S; cin >> S;
    long long int K;
    cin >> K;
    if S.size() == 1{
        cout << K/2;
    }
    else{
    long long int s = S.size();
    long long int j = 1;
    long long int c = 0;
    long long int p = 0;
    while(j < s){
        if(S[j] != S[j-1]){
            j++;
            
        }
        else{
            c++;
            j += 2;
            
        }
    } 
    long long int m = 1;
    while(m < s){
        if(S[m] == S[m-1]){
            p++;
        }
        else{
            p = 0;
        }
        m++;
    }

    if(S[0] == S[s-1]&&p%2 ==0){
        cout << c*K+K-1;
    }
    else{
        cout << c*K;
    }
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:8: error: expected '(' before 'S'
    7 |     if S.size() == 1{
      |        ^
      |        (
a.cc:10:5: error: 'else' without a previous 'if'
   10 |     else{
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll MOD = 1000000007;

int main() {
   string s;
   ll k; cin >> s >> k;

   //sが同じ文字かチェック
   bool is_same = true;
   for(int i=1;i<s.size();i++){
       if(s[0] != s[i])is_same = false;
   }
   if(is_same){
       cout << s.size()*k/2 << endl;
       return 0;
   }

   //sの先頭と末尾が違う場合
   if(s[0] != s[s.size() - 1]){
       ll res = 0;
       for(int i=0;i+1<s.size();i++){
           if(s[i] == s[i+1]){
               ll ans = 0;
               ans+=2;
                for(i=i+1;i+2 <s.size();i++){
                    if(s[i] == s[i+1])ans++;
                    else break;
                }
                res += ans/2;
           }
       }
       cout << res*k << endl;
       return 0;
   }
   //先頭と末尾が同じ場合
   else{
       //初項を求める
       ll a = 0;
        for(int i=0;i+1<s.size();i++){
           if(s[i] == s[i+1]){
               ll ans = 0;
               ans+=2;
                for(i=i+1;i+2 <s.size();i++){
                    if(s[i] == s[i+1])ans++;
                    else break;
                }
                a += ans/2;
           }
       }
       //cout << a << endl;
       //交差dを求める
       ll a2 = 0;
       s *= 2;
        for(int i=0;i+1<s.size();i++){
           if(s[i] == s[i+1]){
               ll ans = 0;
               ans+=2;
                for(i=i+1;i+2 <s.size();i++){
                    if(s[i] == s[i+1])ans++;
                    else break;
                }
                a2 += ans/2;
           }
       }
       //cout << a2 << endl;
       ll d = a2 -a;
       cout << a + (k-1)*d << endl;
   }
}   



Compiler output:
a.cc: In function 'int main()':
a.cc:55:10: error: no match for 'operator*=' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   55 |        s *= 2;
      |        ~~^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;

ll f(string S){
  ll res=0;
  ll i=1;
  while(1){
    if(ll>=S.size())break;
    if(S[i-1]==S[i]){
      res++;
      i++;
    }
    i++;
  }
  return res;
}
    

int main(){
  string S;
  ll K;
  cin >> S >> K;
  if(S.size()==1){
    cout << K/2 << endl;
    return 0;
  }
  if(f(S+S)>f(S)*2){
    cout << f(S)*K+K-1 << endl;
    return 0;
  }else if(f(S+S)==f(S)*2){
    cout << f(S)*K << endl;
    return 0;
  } 
}

Compiler output:
a.cc: In function 'll f(std::string)':
a.cc:9:10: error: expected unqualified-id before '>=' token
    9 |     if(ll>=S.size())break;
      |          ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,j,n) for(int i=(int)(j);i<(int)(n);i++)
#define REP(i,j,n) for(int i=(int)(j);i<=(int)(n);i++)
#define MOD 1000000007
#define int long long
#define ALL(a) (a).begin(),(a).end()
#define vi vector<int>
#define vii vector<vi>
#define pii pair<int,int>
#define priq priority_queue<int>
#define disup(A,key) distance(A.begin(),upper_bound(ALL(A),(int)(key)))
#define dislow(A,key) distance(A.begin(),lower_bound(ALL(A),(int)(key)))
#define tii tuple<int,int,int>
#define Priq priority_queue<int,vi,greater<int>>
#define pb push_back
#define mp make_pair
#define INF (1ll<<60)
signed main(){
  string S; cin>>S;
  int K; cin>>K;
  int N=S.size();
  int ans=0;
  bool flag=0,F=1;
  if(S[0]==S[N-1]){
    flag=1;
    if(S[0]==S[1]){
      S[0]='?';
      F=0;
    }
    else S[N-1]='?';
  }
  if(F){
    REP(i,2,N){
      if(S[N-i]==S[N-i+1]){
        S[n-i]='?';
        ans++;
      }
    }
  }
  else{
    rep(i,0,N-1){
      if(S[i]==S[i+1]){
        ans++;
        S[i+1]='?';
      }
    }
  }
  ans*=K;
  if(flag) ans+=K-1;
  cout<<ans<<endl;
  }



Compiler output:
a.cc: In function 'int main()':
a.cc:36:11: error: 'n' was not declared in this scope
   36 |         S[n-i]='?';
      |           ^
Language: C++

#define _LIBCPP_DEBUG 0
#include <bits/stdc++.h>
using namespace std;
#define rep(i,a,b) for(int i=int(a);i<int(b);i++)
typedef vector<int> vi;
typedef long long ll;


int main(){
    
    string s;cin>>s;
    ll t,cn=0;cin>>t;
    ll N=s.size();
    if(N==1){
        cout<<t/2<<endl;
        return 0;
    }
    if(N==2&&s.at(0)==s.at(1)){
        cout<<t<<endl;
        return 0;
    }
    if(s.at(0)==s.at(N-1)){
        cn++;
        s.at(N-1)='0';
    }
    int cu=0;
    while(cu<N-1){
        if(s.at(cu)==s.at(cu+1)){
            s.at(cu+1)='0';
            cu++;
            cn++;
        }
        cu++;
        
    }
    
    if(s.at(N-1)!=s.at(N-2))cout<<cn*t<<endl;
    else cout<<cn*t-K/2+1<<endl;
    
}






Compiler output:
a.cc: In function 'int main()':
a.cc:38:21: error: 'K' was not declared in this scope
   38 |     else cout<<cn*t-K/2+1<<endl;
      |                     ^
Language: C++

//#include <tourist>
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> p;
const int INF = 1e9;
const ll LINF = ll(1e18) + 1;
const int MOD = 1000000007;
const int dx[4] = {0, 1, 0, -1}, dy[4] = {-1, 0, 1, 0};
const int Dx[8] = {0, 1, 1, 1, 0, -1, -1, -1}, Dy[8] = {-1, -1, 0, 1, 1, 1, 0, -1};
#define yes cout << "Yes" << endl
#define YES cout << "YES" << endl
#define no cout << "No" << endl
#define NO cout << "NO" << endl
#define rep(i, n) for (int i = 0; i < n; i++)
#define ALL(v) v.begin(), v.end()
#define debug(v)          \
    cout << #v << ":";    \
    for (auto x : v)      \
    {                     \
        cout << x << ' '; \
    }                     \
    cout << endl;
template <class T>
bool chmax(T &a, const T &b)
{
    if (a < b)
    {
        a = b;
        return 1;
    }
    return 0;
}
template <class T>
bool chmin(T &a, const T &b)
{
    if (b < a)
    {
        a = b;
        return 1;
    }
    return 0;
}
//cout<<fixed<<setprecision(15);有効数字15桁
//-std=c++14
ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
ll lcm(ll a, ll b) { return a / gcd(a, b) * b; }
int n, m;
vector<int> a;
string s;
int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    ll k;
    cin >> s >> k;
    ll ans = 0;
    if (s.size() == 1)
    {
        cout << n / 2 << "\n";
        return 0;
    }
    bool check = false;
    for (int i = 1; i < s.size(); i++)
    {
        if (s[i] == s[i - 1] && !check)
        {
            ans++;
            check = true;
        }
        else
        {
            check = false;
        }
    }
    ll seq = 1, seqb = 1;
    for (int i = 0; i < s.size() - 1; i++)
    {
        if (s[i] == s[i + 1])
            seq++;
            else{
            break
        }
    }
    for (int i = s.size() - 1; i >= 1; i--)
    {
        if (s[i] == s[i - 1])
            seqb++;
        else{
            break
        }
    }
    if(seq==s.size())return cout<<s.size()*k/2<<"\n",0;
    if (s[0] == s[s.size() - 1])
    {
        //cout<<ans*k<<" "<<seq/2*k<<" "<<seqb/2*k<<" "<<(seq+seqb)/2*k<<"\n";
        cout<<ans*k-seq/2*k-seqb/2*k+(seq+seqb)/2*k<<"\n";
        return 0;
    }
    cout << ans*k << "\n";
}


Compiler output:
a.cc: In function 'int main()':
a.cc:82:18: error: expected ';' before '}' token
   82 |             break
      |                  ^
      |                  ;
   83 |         }
      |         ~         
a.cc:90:18: error: expected ';' before '}' token
   90 |             break
      |                  ^
      |                  ;
   91 |         }
      |         ~
Language: C++

#include <bits/stdc++.h>
using namespace std;

#define int long long
#define all(s) s.begin(), s.end()
#define vi vector<int>
#define pb push_back
#define ii pair<int, int>
#define x first
#define y second

int main() {
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    string s;
    int k;
    long long ans = 0;
    vi v;
    cin >> s >> k;
    int cur = 1;
    for (int i = 1; i < (int) s.size(); i++) {
        if (s[i] == s[i - 1]) cur++;
        else {
            ans += cur / 2;
            v.pb(cur);
            cur = 1;
        }
    }
    ans += cur / 2;
    v.pb(cur);
    if (v.size() == 1) return cout << 1LL * s.size() * k / 2, 0;
    ans = ans * k;
    if (s[0] == s.back()) {
        int u = v[0];
        int uu = v.back();
        int foo = u + uu;
        ans -= (k - 1) * (u / 2 + uu / 2);
        ans += (k - 1) * foo / 2;
    }
    cout << ans;
    return 0;
}

Compiler output:
cc1plus: error: '::main' must return 'int'
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define all(a)  (a).begin(),(a).end()
typedef long long ll;
const ll mod=1000000007;
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)

int main() {
  string s;cin >>s;
  ll k;cin >>k;
  if(s.size()==1){
    cout << k/2 << endl;
    return 0;
  }
  vector<pair<ll,ll>> v;
  string prev = s.substr(0,1);
  ll start = 0LL;
  ll cnt = 1LL;
  for(ll i=1;i<s.size();++i){
    auto tmp =s.substr(i,1);
    if(prev==tmp){
      ++cnt;
    } else {
      if(cnt>1LL)v.push_back(make_pair(start,cnt));
      start = i;
      prev = tmp;
      cnt = 1LL;
    }
  }
  if(cnt>1LL)v.push_back(make_pair(start,cnt));
  ll out =0LL;
  for(auto& ele: v) out += ele.second/2LL;
  out *=k;
  ll edge_cnt =0LL;
  ll edge_cnt_end =0LL;
  ll edge_cnt_start =0LL;
  if(s.substr(0,1)==s.substr(s.size()-1,1)){
    if(s[0] == s[1]){
      edge_cnt += v[0].second;
      edge_cnt_start = v[0].second;
    } else {
      edge_cnt += 1LL;
    }
    if(s[s.size()-2] == s[s.size()-1]){
      edge_cnt += v[v.size()-1].second;
      edge_cnt_end = v[v.size()-1].second;
    } else {
      edge_cnt += 1LL;
    }
  }
  if(edge_cnt>0LL) {
    ll addedge = edge_cnt/2LL;
    out += addedge*(k-1LL);
    ll removeedge1 = edge_cnt_start/2LL;
    ll removeedge2 = edge_cnt_end/2LL;
    out -= reremoveedge1*(k-1LL);
    out -= removeedge2*(k-1LL);
  }
  cout << out << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:56:12: error: 'reremoveedge1' was not declared in this scope; did you mean 'removeedge1'?
   56 |     out -= reremoveedge1*(k-1LL);
      |            ^~~~~~~~~~~~~
      |            removeedge1
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define all(a)  (a).begin(),(a).end()
typedef long long ll;
const ll mod=1000000007;
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)

int main() {
  string s;cin >>s;
  ll k;cin >>k;
  if(s.size()==1){
    cout << k/2 << endl;
    return 0;
  }
  vector<pair<ll,ll>> v;
  string prev = s.substr(0,1);
  ll start = 0LL;
  ll cnt = 1LL;
  for(ll i=1;i<s.size();++i){
    auto tmp =s.substr(i,1);
    if(prev==tmp){
      ++cnt;
    } else {
      if(cnt>1LL)v.push_back(make_pair(start,cnt));
      start = i;
      prev = tmp;
      cnt = 1LL;
    }
  }
  if(cnt>1LL)v.push_back(make_pair(start,cnt));
  ll out =0LL;
  for(auto& ele: v) out += ele.second/2LL;
  out *=k;
  ll edge_cnt =0LL;
  ll edge_cnt_end =0LL;
  ll edge_cnt_start =0LL;
  if(s.substr(0,1)==s.substr(s.size()-1,1)){
    if(s[0] == s[1]){
      edge_cnt += v[0].second;
      edge_cnt_start = v[0].second;
    } else {
      edge_cnt += 1LL;
    }
    if(s[s.size()-2] == s[s.size()-1]){
      edge_cnt += v[v.size()-1].second;
      edge_cnt_end = v[v.size()-1].second;
    } else {
      edge_cnt += 1LL;
    }
  }
  if(edge_cnt>0LL) {
    ll addedge = edge_cnt/2LL;
    out += addedge*(k-1LL);
    ll removeedge1 = edge_cnt_start/2LL;
    ll removeedge2 = edge_cnt_end/2LL;
    out -= eremoveedge1*(k-1LL);
    out -= removeedge2*(k-1LL);
  }
  cout << out << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:56:12: error: 'eremoveedge1' was not declared in this scope; did you mean 'removeedge1'?
   56 |     out -= eremoveedge1*(k-1LL);
      |            ^~~~~~~~~~~~
      |            removeedge1
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define all(a)  (a).begin(),(a).end()
typedef long long ll;
const ll mod=1000000007;
#define repi(i,a,b) for(int i=int(a);i<int(b);++i)

int main() {
  string s;cin >>s;
  ll k;cin >>k;
  if(s.size()==1){
    cout << k/2 << endl;
    return 0;
  }
  vector<pair<ll,ll>> v;
  string prev = s.substr(0,1);
  ll start = 0LL;
  ll cnt = 1LL;
  for(LL i=1;i<s.size();++i){
    auto tmp =s.substr(i,1);
    if(prev==tmp){
      ++cnt;
    } else {
      if(cnt>1LL)v.push_back(make_pair(start,cnt));
      start = i;
      prev = tmp;
      cnt = 1LL;
    }
  }
  bool last_connect = false;
  if(cnt>1LL){
    v.push_back(make_pair(start,cnt));
    last_connect = true;
  }
  ll edge_cnt = 0;
  ll edge_cnt_start = 0;
  ll edge_cnt_end = 0;
  if(s.substr(0,1)==s.substr(s.size()-1,1)){
    if(v.size()>0){
      if(v[0].first == 0){
        edge_cnt += v[0].second;
        edge_cnt_start = v[0].second;
        v[0].second = 1LL;
      }
    } else {
      edge_cnt += 1LL;
    }
    if(last_connect){
      edge_cnt += v[v.size()-1].second;
      edge_cnt_end = v[v.size()-1].second;
      v[v.size()-1].second = 1LL;
    } else {
      edge_cnt += 1LL;
    }
  }
  ll out =0LL;
  out += edge_cnt_start/2LL;
  out += edge_cnt_end/2LL;
  for(auto& ele: v) out += ele.second/2LL*k;
  if(edge_cnt>0LL) out += edge_cnt/2LL*(k-1LL);
  cout << out << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:7: error: 'LL' was not declared in this scope; did you mean 'll'?
   19 |   for(LL i=1;i<s.size();++i){
      |       ^~
      |       ll
a.cc:19:14: error: 'i' was not declared in this scope
   19 |   for(LL i=1;i<s.size();++i){
      |              ^
Language: C++

#include <bits/stdc++.h>
#include <algorithm>
#define _GLIBCXX_DEBUG
#define rep(i,n) for(int i=0;i<(n);++i)
#define all(x) (x).begin(), (x).end()
#define PB(x) push_back(x)
#define MP(x,y) make_pair(x,y)
using namespace std;
using P = pair<int,int>;
typedef long long ll;
 
int main() {
    string s;
    ll k;
    cin>>s>>k;

    ll ans=0;
    int n=s.size();
    if(s[0]!=s[n-1]) {
        for(int i=1;i<n;i++) {
            if(s[i]==s[i-1]) {
                ans++;
                s[i]='0';
            }
        }
        cout<<ans*k<<endl;
    }
    else {
        rep(i,n-1) {
            if(s[i]==s[i+1]) ;
            else    break;
            if(i==n-2) {
                cout<<n*k/2<<endl;
                return 0;
            }
        }
        int a=1,b=1;
        rep(i,n-1) {
            if(s[i]==s[i+1])    a++;
            else    break;
        }
        for(int i=n-1;i>0;i--) {
            if(s[i]==s[i-1])    b++;
            else    break;
        }
        int t=1;
        for(int i=1;i<n;i++) {
            if(s[i]==s[i-1]) {
                t++;
            }
            else if(t>1) {
                ans+=t/2;
                t=1;
            }
            if(i==n-1)  ans+=t/2;
        ans=(ans*k)-(((a/2)+(b/2)-((a+b)/2))*(k-1));      
        cout<<ans<<endl;      
    }
    
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:61:2: error: expected '}' at end of input
   61 | }
      |  ^
a.cc:12:12: note: to match this '{'
   12 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
#include <algorithm>
#define _GLIBCXX_DEBUG
#define rep(i,n) for(int i=0;i<(n);++i)
#define all(x) (x).begin(), (x).end()
#define PB(x) push_back(x)
#define MP(x,y) make_pair(x,y)
using namespace std;
using P = pair<int,int>;
typedef long long ll;
 
int main() {
    string s;
    ll k;
    cin>>s>>k;

    ll ans=0;
    int n=s.size();
    if(s[0]!=s[n-1]) {
        for(int i=1;i<n;i++) {
            if(s[i]==s[i-1]) {
                ans++;
                s[i]='0';
            }
        }
        cout<<ans*k<<endl;
    }
    else {
        rep(i,n-1) {
            if(s[i]==s[i+1]) ;
            else    break;
            if(i==n-2) {
                cout<<n*k/2<<endl;
                return 0;
            }
        }
        int a=1,b=1;
        rep(i,n-1) {
            if(s[i]==s[i+1])    a++;
            else    break;
        }
        for(int i=n-1;i>0;i--) {
            if(s[i]==s[i-1])    b++;
            else    break;
        }
        int t=1;
        for(int i=1;i<n;i++) {
            if(s[i]==s[i-1]) {
                t++;
            }
            else if(t>1) {
                ans+=t/2;
                t=1;
            if(i==n-1)  ans+=t/2;
        }
        ans=(ans*k)-(((a/2)+(b/2)-((a+b)/2))*(k-1));      
        cout<<ans<<endl;      
    }
    
 return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:61:2: error: expected '}' at end of input
   61 | }
      |  ^
a.cc:12:12: note: to match this '{'
   12 | int main() {
      |            ^
Language: Java

#include <bits/stdc++.h>
using namespace std;

typedef long long LL;
 
const int MOD = 1e9 + 7;

class Task {
public:

	void solve() {
		string s;
		cin >> s;
		int k;
		cin >> k;
		
		int n = s.length();
		
		int x = 0;
		while (x < n && s[x] == s[0]) ++x;
		int y = n - 1;
		while (y >= x && s[y] == s[n - 1]) --y;
		
		LL result = 0;
		
		for (int i = x; i <= y; ) {
			int j = i + 1;
			while (j <= y && s[j] == s[i]) ++j;
			result += (j - i) / 2;
			i = j;
		}
		
		result *= k;
		
		y = n - y - 1;
		
		result += x / 2 + y / 2;
		
		if (s[0] != s[n - 1]) {
			result += (LL) (x / 2 + y / 2) * (k - 1);
		} else {
			result += (LL) (x + y) / 2 * (k - 1);
		}
		
		cout << result << '\n';
	}
};
 
int32_t main() {
#ifndef ONLINE_JUDGE
	freopen("input.txt", "r", stdin);
#endif
 
	Task *task = new Task();
	task->solve();
	return 0;
}


Compiler output:
Main.java:1: error: illegal character: '#'
#include <bits/stdc++.h>
^
Main.java:1: error: class, interface, enum, or record expected
#include <bits/stdc++.h>
         ^
Main.java:4: error: class, interface, enum, or record expected
typedef long long LL;
^
Main.java:6: error: class, interface, enum, or record expected
const int MOD = 1e9 + 7;
^
Main.java:9: error: illegal start of type
public:
      ^
Main.java:13: error: not a statement
		cin >> s;
		    ^
Main.java:15: error: not a statement
		cin >> k;
		    ^
Main.java:45: error: not a statement
		cout << result << '\n';
		               ^
Main.java:50: error: illegal character: '#'
#ifndef ONLINE_JUDGE
^
Main.java:52: error: illegal character: '#'
#endif
^
Main.java:55: error: not a statement
	task->solve();
	^
Main.java:49: error: unnamed classes are a preview feature and are disabled by default.
int32_t main() {
^
  (use --enable-preview to enable unnamed classes)
Main.java:50: error: ';' expected
#ifndef ONLINE_JUDGE
                    ^
Main.java:54: error: ';' expected
	Task *task = new Task();
	    ^
14 errors