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

import java.util.Scanner;

public class AGC039A_ConnectionAndDisconnection {

	public static void main(String[] args) {
		// TODO 自動生成されたメソッド・スタブ
		Scanner sc=new Scanner(System.in);
		String s=sc.next();
		int k=sc.nextInt();
		System.out.println(""+Process(s,k));
	}

	private static long Process(String s, int k) {
		long r;
		// TODO 自動生成されたメソッド・スタブ
		//System.out.println("sの最後の文字は"+s.substring(s.length()-1, s.length()));
		int[] p=Structur(s);
		//System.out.println("PRINT");
		if(Simple(s)) {
			r=f(k*(long)s.length());
			return r;
		}else {
			if(s.substring(0, 1).equals(s.substring(s.length()-1, s.length()))) {
				//System.out.println("print");
				return s1(k,p);
			}else {
				return s2(k,p);
			}
		}
	}

	private static long s2(int k, int[] p) {
		// TODO 自動生成されたメソッド・スタブ
		long r;
		int[] q=new int[p.length];
		for(int i=0;i<p.length;i++) {
			q[i]=(int)f(p[i]);
		}

		//System.out.println("幹部は"+(sum(q))+"");
		r=k*(long)sum(q);
		return r;
	}

	private static long s1(int k, int[] p) {
		// TODO 自動生成されたメソッド・スタブ
		long r;
		//System.out.print("pの長さ"+p.length);
		int[] q=new int[p.length-1];
		q[p.length-2]=(int)f(p[0]+p[p.length-1]);
		//System.out.println("qのおしりは定義");
		for(int i=1;i<p.length-1;i++) {
			q[i-1]=(int)f(p[i]);
		}
		//System.out.println("幹部は"+(sum(q)*k)+"");
		//System.out.println((sum(q)*k)+"-"+f(p[0]+p[p.length-1])+"+"+f(p[0])+"+"+f(p[p.length-1]));
		r=(long)sum(q)*(long)k-(long)f(p[0]+p[p.length-1])+(long)f(p[0])+(long)f(p[p.length-1]);
		return r;
	}

	private static int sum(int[] q) {
		// TODO 自動生成されたメソッド・スタブ
		int r=0;
		for(int i=0;i<q.length;i++) {
			r=r+q[i];
		}
		return r;
	}

	private static long f(long l) {
		// TODO 自動生成されたメソッド・スタブ
		if(l%2==0) {
			return l/2;
		}else {
			return (l-1)/2;
		}
	}

	private static boolean Simple(String s) {
		// TODO 自動生成されたメソッド・スタブ
		if(g(s)==s.length()) {
			return true;
		}else return false;
	}

	private static int[] Structur(String s) {
		// TODO 自動生成されたメソッド・スタブ

		String str=s;
		int l=0;
		for(int i=0;str.length()!=0;i++) {
			str=str.substring(g(str));
			//System.out.println("str="+str);
			l=i;
		}
		int[] r=new int[l+1];
		//System.out.println("l="+l+", s="+s);
		String str2=s;
		for(int i=0;str2.length()!=0;i++) {
			//System.out.println("p["+i+"]="+g(str2));
			r[i]=g(str2);
			str2=str2.substring(r[i]);
		}
		//System.out.println("PriNT");
		return r;
	}

	private static int g(String s) {
		// TODO 自動生成されたメソッド・スタブ
		int r=0;
		String h=s.substring(0, 1);
		for(int i=0;i<s.length() && h.equals(s.substring(i, i+1)) ;i++) {
			//System.out.print("i="+i);
			r=i;
		}
		//System.out.println("g(s)="+(r+1));
		return r+1;
	}

}


Compiler output:
Main.java:3: error: class AGC039A_ConnectionAndDisconnection is public, should be declared in a file named AGC039A_ConnectionAndDisconnection.java
public class AGC039A_ConnectionAndDisconnection {
       ^
1 error
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  string a;
  cin>>a;
  int n;
  cin>>n;
  int w=1;
  int kk=0;
  for(int i=0;i<a.size()-1;i++){
    
    
    if(a[i]==a[i+1]){
      w++;
    }
    else if(w!=1){
      kk+=w/2;
      w=1;
    }
    
  }
  int ans=kk*n;
  if(a[0]==a[a.size()]){
    
  int g=1;
  int e=1;
  
  for(int i=0;i<s.size()-1;i++){
    if(a[i]!=a[i+1]){
      if(i==0){
      break;
    }
    else if(a[i]==a[s.size()-2]){
      g=0;
      break;
    }
    else{
      g++;
    }
    
  }
  for(int i=a.size()-1;i>0;i--){
    if(a[i]!=a[i-1]){
      
      break;
    }
    else if(a[i]==a[1]){
      e=0;
      break;
    }
    else{
      e++;
    }
  }
  if(g%2==1 && e%2==1){
    ans+=n-1;
  }
  }
  cout<<ans<<endl;
}
  
    
    
    

Compiler output:
a.cc: In function 'int main()':
a.cc:28:17: error: 's' was not declared in this scope
   28 |   for(int i=0;i<s.size()-1;i++){
      |                 ^
a.cc:60:2: error: expected '}' at end of input
   60 | }
      |  ^
a.cc:3:12: note: to match this '{'
    3 | int main() {
      |            ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
long long a,n,ans;
string b;
int main()
{
    cin>>b>>a;
    n=b.length()-1;
    for(int i=1;i<n-1;i++)
    {
        if(b[i-1]==b[i]&&b[i]==b[i+1])
        {
            ans++;
            i++;
        }
        else if(i-1==0&&b[i]==b[i-1]&&b[0]==b[n]&&a!=1)
            ans=ans;
        else if(b[i]==b[i-1])
            ans++;
    }
    if(b[n]==b[0]&&a!=1)
        ans++;
    cout<<ans*a<<endl;
    return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:24:14: error: expected '}' at end of input
   24 |     return 0;
      |              ^
a.cc:6:1: note: to match this '{'
    6 | {
      | ^
Language: C

#include<stdio.h>
#include<string.h>
int main(void){
	  	char S[100];
  		long count;
  		long K = 0;
		int s=0;
		char N[100];
  	for(count =0;count<100;count++){
		if(scanf("%c",&S[count])==1){}
		N[count]=S[count];
		if(S[count] =='\n'){break;}	
	}

	S[count]=0x00;
	if(scanf("%lu",&K)==1){}
	int c=0;
		for(int x=0;x<(count);x++){
			if(S[x]==S[x+1]){
				s++;
				if(S[x-1]==S[x]){c=c+1;}				
			}
			else if((x+1==K)&&(y+1!=K)){if(S[x+1]==S[0]){c=c+1;}}
			else{s =s - (c+1)/2;c=0;}
		}

	printf("%d\n",s*K);
}

Compiler output:
main.c: In function 'main':
main.c:23:44: error: 'y' undeclared (first use in this function)
   23 |                         else if((x+1==K)&&(y+1!=K)){if(S[x+1]==S[0]){c=c+1;}}
      |                                            ^
main.c:23:44: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main(void){

char s[100];
char s1[200];
long long int k;
long long int ans;
int i,j;
long int unit=0;
int checker;
int len;
int singleunit=0;
scanf("%s",s);
strcat(s1,s);
strcat(s1,s);
scanf("%ld",&k);

len=strlen(s);
for(i=0;i<2*len;i++){
  if(s1[i]==s1[i+1]){
    s1[i+1]='A';
    unit++;
  }
}


//printf("unit=%d\nk=%d\n",unit,k);
if(k%2==0){
  k=k/2;
  ans=unit*k;
}
else{
  k=k/2;

    for(i=0;i<len;i++){
      if(s[i]==s[i+1]){
        s[i+1]='A';
        singleunit++;
      }
    }
ans=unit*k+singleunit;
}
/*if(s[0]==s[len-1]){
  ans=unit*k+k-1;
}//ここ☑
else
ans=unit*k;*/
//printf("%d",unit*k);
if(len==1){
  ans=k;
}



printf("%lld",ans);
return 0;
}
}


Compiler output:
main.c:60:1: error: expected identifier or '(' before '}' token
   60 | }
      | ^
Language: C++

#include <iostream>
#include <string>
#include <bits/stdc++.h> 

using namespace std;

int n;
int setCount;

int main (){
    setCount = 0;
    cin >> n;
    bool visited[n];
    int a[n][n];
    for(int i = 0; i < n; i++){
        visited[n] = false;
        for(int j = 0; j < n; j++){
            cin >> a[i][j];
        }
    }
    queue <int> q;
    for(int i = 0; i < n; i++){
        if(!visited[i]){
            int recent = -1;
            q.push(0);
            while(!q.empty()){
            int current = q.front();
            q.pop();
            for(int i = 0; i < n; i++){
                if(a[current][i] == 1){
                    if(!visited[i]){
                        q.push[i];
                        visited[i] = true;
                    }
                }
                setCount++;
                recent = current;
            }
        }
    }
    if(setCount == 1){
        cout << -1 << endl;
        return 0;
    }
    else{
        cout << setCount;
        return 0;
    }
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:31: error: invalid types '<unresolved overloaded function type>[int]' for array subscript
   32 |                         q.push[i];
      |                               ^
Language: C++

#include <stdio.h>
#include <string.h>

int calcRepeat(char *str, int k)
{
  int i =0, cnt = 0;
  char buff[1024] = {'\0'};
  int len = strlen(str);
  
  strncpy(buff, str, len);
 
  for(i=1; i<len; i++)
  {
    if(buff[i-1] == buff[i])
    {
      cnt++;
      buff[i] = '\0';// to skip str[i]
    }
  }
  res = cnt * k;
  if(buff[0] == buff[len-1])
    res = res+k-1;
  
  return res;
}
void main(void)
{
  char buff[1024] = {'\0'};
  int  kValue = 0;
  int result = 0;
  
  scanf("%s", &buff);
  scanf("%d", &kValue);
  
  result = calcRepeat(buff, kValue);
  printf("%d", result);
  
}

Compiler output:
a.cc: In function 'int calcRepeat(char*, int)':
a.cc:20:3: error: 'res' was not declared in this scope
   20 |   res = cnt * k;
      |   ^~~
a.cc: At global scope:
a.cc:26:1: error: '::main' must return 'int'
   26 | void main(void)
      | ^~~~
Language: C++

#include<iostream>
#include<bits/stdc++.h>
#include<conio.h>
 
using namespace std;
 
int main(){
    int c=0;
	string s,t;
  	long long int k;
  	cin>>s>>k;
  	for(int j=s.length()-1;j>0;j--){
      if(s[j]==s[j-1]){
        if(s[j]=='a')
        s[j]=s[j]+1;
        else if(s[j]=='z')
        s[j]=s[j]-1;
        else
        s[j]=s[j]-1;
        c++;
      }
    }
  	if(s[0]==s[s.length()-1]){
      s[s.length()-1]=s[s.length()-2]-3;
      c++;
    }
  	cout<<c*k;
  	cout<<s;
  	getch();
  	return 0;
}

Compiler output:
a.cc:3:9: fatal error: conio.h: No such file or directory
    3 | #include<conio.h>
      |         ^~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
#pragma GCC optimize("O3")
#define REP(i,n) for(int i=0;i<n;i++)
#define REPP(i,n) for(int i=1;i<=n;i++)
#define ALL(obj) (obj).begin(), (obj).end()
#define EPS (1e-9)
#define INF (1e12)
#define PI (acos(-1))
//const double PI = acos(-1);
//const double EPS = 1e-15;
//long long INF=(long long)1E17;
#define i_7 (long long)(1e9+7)
long mod(long a){
    long long c=a%i_7;
    if(c>=0)return c;
    return c+i_7;
}
using namespace std;

bool prime_(int n){
  if(n==1){
    return false;
  }else if(n==2){
    return true;
  }else{
    for(int i=2;i<=sqrt(n);i++){
      if(n%i==0){
        return false;
      }
    }
    return true;
  }
}

long long gcd_(long long a, long long b){
  if(a<b){
    swap(a,b);
  }
  if(a%b==0){
    return b;
  }else{
    return gcd_(b,a%b);
  }
}
 
long long lcm_(long long x, long long y){
  return (x/gcd_(x,y))*y;
}

int main(){
  
  string s;
  cin>>s;
  long long k;
  cin>>k;
  int n = s.size();
  //long long dp[n][2][2] = {};
  //fill(dp,dp+4*n,INF);
  vector<vector<vector<long long>>> dp(n, vector<2, vector<2, INF>()>());
  bool f[n] = {};
  REP(i,n){
    REP(j,2){
      REP(k,2){
        if(i==0){
          if(j==0){
            if(k==0){
              dp[i][j][k] = 0;
            }
          }else{
            if(k==1){
              dp[i][j][k] = 1;
            }
          }
          continue;
        }
        if(j==0){
          if(s[i-1] == s[i]){
            dp[i][j][k] = dp[i-1][1][k];
          }else{
            dp[i][j][k] = min(dp[i-1][0][k], dp[i-1][1][k]);
          }
        }else{
          dp[i][j][k] = 1 + min(dp[i-1][0][k], dp[i-1][1][k]);
        }
      }
    }
  }
  
  long long ans = INF;
  REP(j,2){
    REP(k,2){
      if(j || k){
        ans = min(ans, dp[n-1][j][k]*k);
      }else if(s[n-1] != s[0]){
        ans = min(ans, dp[n-1][j][k]*k);
      }else{
        ;
      }
    }
  }
  //long long ans = min(cand[0],cand[1]);
  cout<<ans<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:59:66: error: type/value mismatch at argument 1 in template parameter list for 'template<class _Tp, class _Alloc> class std::vector'
   59 |   vector<vector<vector<long long>>> dp(n, vector<2, vector<2, INF>()>());
      |                                                                  ^
a.cc:59:66: note:   expected a type, got '2'
a.cc:59:66: error: type/value mismatch at argument 2 in template parameter list for 'template<class _Tp, class _Alloc> class std::vector'
a.cc:59:66: note:   expected a type, got '1.0e+12'
a.cc:59:69: error: type/value mismatch at argument 1 in template parameter list for 'template<class _Tp, class _Alloc> class std::vector'
   59 |   vector<vector<vector<long long>>> dp(n, vector<2, vector<2, INF>()>());
      |                                                                     ^
a.cc:59:69: note:   expected a type, got '2'
a.cc:59:69: error: template argument 2 is invalid
Language: C++

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

typedef long long ll;
typedef pair<int,int> pii;
typedef vector<int> vi;
#define mp make_pair
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define MOD 1000000007

int k;
string s;
ll ans;
int x;

int main(){
  cin >> s;
  cin >> k;
  int n = s.size();
  x=0;
  int flag = 0;
  for(int i=1;i<n;i++){
    if(s[i-1]==s[i]){
      if(flag == 0) x+=2;
      else{
        x++;
      }
      flag++;
    }
    if(s[i-1]!=s[i]||i==n-1){
      if(flag == 0) continue;
      ans+=x/2;
      flag = 0;
      x=0;
    }
  }


  if(n==1||(x==n)){
		if(n==1){
    	cout << k/2 << endl;
    	return 0;
		}else{
			ans = (x*k)/2
			cout << ans << endl;
			return 0; 
		}
  }
  if(s[0]!=s[n-1]){
    cout << ans*k << endl;
    return 0;
  }

  int t1= 0,t2=0;

  for(int i = 0;i<n-1;i++){
    if(s[i+1]==s[i]){
      t1++;
    }else{
      break;
    }
  }
  for(int i=0;i<n-1;i++){
    if(s[n-i-1]==s[n-i-2]){
      t2++;
    }else{
      break;
    }
  }

  if(t1%2==0&&t2%2==0) ans = (ans+1)*k-1;
  else ans = ans*k;

  cout << ans <<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:38: error: expected ';' before 'cout'
   47 |                         ans = (x*k)/2
      |                                      ^
      |                                      ;
   48 |                         cout << ans << endl;
      |                         ~~~~
Language: Java

import java.io.*;
import java.math.BigInteger;
import java.util.*;
import java.util.Map.Entry;
 
 
public class  gym{
	static int[][]memo;
	static char[]in;
	static int dp(int i,int prev) {
		if(i>=memo.length)return 0;
		if(memo[i][prev]!=-1)return memo[i][prev];
		if(prev==1) {
			return memo[i][prev]=Math.min(dp(i+1,0), dp(i+1,1)+1);
		}
		if(in[i]==in[i-1]) {
			return memo[i][prev]=dp(i+1,1)+1;
		}
		return memo[i][prev]=Math.min(dp(i+1,0), dp(i+1,1)+1);
	}
	public static void main(String[] args) throws Exception{
    	MScanner sc = new MScanner(System.in);
        PrintWriter pw=new PrintWriter(System.out);
        in=sc.nextLine().toCharArray();
        int k=sc.nextInt();
        
        if(in.length==1) {
        	pw.println(k/2);
        	pw.flush();
        	return;
        }
        char[]in2=new char[2*in.length];
        int o=0;int c=0;
        while(o<in2.length) {
        	in2[o]=in[c];
        	o++;c++;
        	if(c==in.length)c=0;
        }
        memo=new int[in.length][2];
        for(int[]i:memo) {
        	Arrays.fill(i, -1);
        	
        }
        int cnt=dp(0,1);
        in=in2.clone();

        memo=new int[in2.length][2];
        for(int[]i:memo) {
        	
        	Arrays.fill(i, -1);
        	
        }
        int cnt2=dp(0,1);
        int dif=cnt2-cnt;
        pw.println(cnt*1l+dif*1l*(k-1));
        pw.flush();
        pw.close();
    }
    static class MScanner {
		StringTokenizer st;
		BufferedReader br;
		public MScanner(InputStream system) {
			br = new BufferedReader(new InputStreamReader(system));
		}
 
		public MScanner(String file) throws Exception {
			br = new BufferedReader(new FileReader(file));
		}
 
		public String next() throws IOException {
			while (st == null || !st.hasMoreTokens())
				st = new StringTokenizer(br.readLine());
			return st.nextToken();
		}
		public int[] takearr(int n) throws IOException {
	        int[]in=new int[n];for(int i=0;i<n;i++)in[i]=nextInt();
	        return in;
		}
		public long[] takearrl(int n) throws IOException {
	        long[]in=new long[n];for(int i=0;i<n;i++)in[i]=nextLong();
	        return in;
		}
		public Integer[] takearrobj(int n) throws IOException {
	        Integer[]in=new Integer[n];for(int i=0;i<n;i++)in[i]=nextInt();
	        return in;
		}
		public Long[] takearrlobj(int n) throws IOException {
	        Long[]in=new Long[n];for(int i=0;i<n;i++)in[i]=nextLong();
	        return in;
		}
		public String nextLine() throws IOException {
			return br.readLine();
		}
 
		public int nextInt() throws IOException {
			return Integer.parseInt(next());
		}
 
		public double nextDouble() throws IOException {
			return Double.parseDouble(next());
		}
 
		public char nextChar() throws IOException {
			return next().charAt(0);
		}
 
		public Long nextLong() throws IOException {
			return Long.parseLong(next());
		}
 
		public boolean ready() throws IOException {
			return br.ready();
		}
 
		public void waitForInput() throws InterruptedException {
			Thread.sleep(3000);
		}
	}
}

Compiler output:
Main.java:7: error: class gym is public, should be declared in a file named gym.java
public class  gym{
       ^
1 error
Language: C++

#include<iostream>
#include<string>
using namespace std;

string S;
long long K;

int beginNumber(){
  int n = 0;
  for(auto itr = S.begin(); itr != S.end(); ++itr){
    if(*S.begin() == *itr) ++n;
    else break;
  }
  return n;
}

int endNumber(){
  int n = 0;
  for(auto itr = S.end()-1; itr != S.begin(); --itr){
    if(*(S.end()-1) == *itr) ++n;
    else break;
  }
  return n;
}

long long solve(){
  long long ans = 0, n;
  auto start = S.begin();
  while(start != S.end()){
    n = 1;
    for(auto end = start+1; end != S.end(); ++end){
      if(*end == *start) ++n;
      else break;
    }
    ans += n/2;
    start += n;
  }
  if(*S.begin() != *(S.end()-1)){
    return K*ans;
  }
  else{
    long long bn = beginNumber(), en = endNumber();
    if(an == S.size()) return K*ans;
    //cout << bn << "," << en << endl;
    else return K*ans + (K-1)*((bn+en)/2 - bn/2 - en/2);
  }
}

int main(){
  cin >> S >> K;
  cout << solve() << endl;
  return 0;
}


Compiler output:
a.cc: In function 'long long int solve()':
a.cc:43:8: error: 'an' was not declared in this scope; did you mean 'en'?
   43 |     if(an == S.size()) return K*ans;
      |        ^~
      |        en
a.cc:42:50: warning: control reaches end of non-void function [-Wreturn-type]
   42 |     long long bn = beginNumber(), en = endNumber();
      |                                                  ^
Language: C++

#include<iostream>
#include<string>
using namespace std;

string S;
long long K;

int beginNumber(){
  int n = 0;
  for(auto itr = S.begin(); itr != S.end(); ++itr){
    if(*S.begin() == *itr) ++n;
    else break;
  }
  return n;
}

int endNumber(){
  int n = 0;
  for(auto itr = S.end()-1; itr != S.begin(); --itr){
    if(*(S.end()-1) == *itr) ++n;
    else break;
  }
  return n;
}

long long solve(){
  long long ans = 0, n;
  auto start = S.begin();
  while(start != S.end()){
    n = 1;
    for(auto end = start+1; end != S.end(); ++end){
      if(*end == *start) ++n;
      else break;
    }
    ans += n/2;
    start += n;
  }
  if(*S.begin() != *(S.end()-1)){
    return K*ans;
  }
  else{
    long long bn = beginNumber(), en = endNumber();
    if(an == S.size()) return K*ans;
    //cout << bn << "," << en << endl;
    return K*ans + (K-1)*((bn+en)/2 - bn/2 - en/2);
  }
}

int main(){
  cin >> S >> K;
  cout << solve() << endl;
  return 0;
}


Compiler output:
a.cc: In function 'long long int solve()':
a.cc:43:8: error: 'an' was not declared in this scope; did you mean 'en'?
   43 |     if(an == S.size()) return K*ans;
      |        ^~
      |        en
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
typedef long long ll;
int main() {
    // ifstream in("data1.txt");
    // cin.rdbuf(in.rdbuf());
    string S;
    ll K;
    cin >> S >> K;

    ll ansone = 0;
    ll ans = 0;
    string D = S;
    for(ll i = 0; i < S.size() - 1; i++) {
        if(S[i] == S[i + 1]) {
            ansone++;
            S[i + 1] = 'X';
        }
    }
    D += D;
    for(ll i = 0; i < D.size() - 1; i++) {
        if(D[i] == D[i + 1]) {
            ans++;
            D[i + 1] = 'X';
        }
    }

    ll tmp = K / 2;
    ans *= tmp;

    if(K % 2 != 0) {
        ans += ansone;
    }

    if(S[S.size() - 1] == S[i]) {
        ans += K - 2;
    }

    cout << ans << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:36:29: error: 'i' was not declared in this scope
   36 |     if(S[S.size() - 1] == S[i]) {
      |                             ^
Language: C++

#include <iostream>
using namespace std;

int main() {
    long long K;
    string S, S_concat;

    cin >> S;
    cin >> K;

    S_concat = S + S;
    int uni_same_count = 0, concat_same_count = 0, tri_concat_same_count = 0;
    char cache = '\0';
    
    for (int i = 0; i < S_concat.size(); i++) {
        if (S_concat[i] == cache && cache != '\0')
        {
            concat_same_count += 1;
            cache = '\0';
        } else 
        {
            cache = S_concat[i];
        }
        
    }

    cache = '\0';
    S_concat = S + S + S;
    for (int i = 0; i < S_concat.size(); i++) {
        if (S_concat[i] == cache && cache != '\0')
        {
            tri_concat_same_count += 1;
            cache = '\0';
        } else 
        {
            cache = S_concat[i];
        }
        
    }

    cache = '\0';
    for (int i = 0; i < S.size(); i++) {
        if (S[i] == cache && cache != '\0')
        {
            uni_same_count += 1;
            cache = '\0';
        } else 
        {
            cache = S[i];
        }
    }


    int odd_concat = tri_concat_same_count - concat_same_count;
    int even_concat = concat_same_count - uni_same_count;

    long long replace_count = concat_same_count * (K / 2) + odd_concat * (K % 2);
    if (K == 1) replace_count = uni_same_count;
    cout << replace_count << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:59:35: error: expected '}' at end of input
   59 |     cout << replace_count << endl;
      |                                   ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <string>

void main()
{
  std::string S;
  std::cin >> S;
  
  int K;
  std::cin >> K;
  
  std::string T = "";
  for (int i=0; i<K; i++) {
    T += S;
  }
  
  int n = 0;
  for (int i=0; i < T.size() - 1; i++) {
    if (T[i] == T[i + 1]) {
      n++;
      i += 1;
    }
  }
  
  std::cout << n << std::endl;
}

Compiler output:
a.cc:4:1: error: '::main' must return 'int'
    4 | void main()
      | ^~~~
Language: C++

#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;

#define REP(i, n) for(int i = 0; i < (int)(n); ++i)
#define FOR(i, m, n) for(int i = (int)(m); i < (int)(n); ++i)


int main()
{
    string S;
    cin >> S;
    int K;
    cin >> K;

    int N = S.size();

    long long ans = 0;
    int left = 0, right = 0;
    while(right < N){
        if(left == right) ++right;
        while(right < N and S[right-1] == S[right]) ++right;
        ans += (right-left)/2;
        //cout << left << " " << right << endl;
        left = right;
    }
    ans *= K;
    if(S[0] == S[N-1]){
        int num_head = 1, num_tail = 1;
        REP(i, N-1){
            if(S[i] == S[i+1]) ++num_head;
            else break;
        }
        for(int i = N-1; i > 0; --i){
            if(S[i-1] == S[i]) ++num_tail;
            else break;
        }
        if(num_head == N){
            cout << (long long)N*K/2 << endl;
            return 0;
        if(num_head%2 == 1 and num_tail%2 == 1) ans += K-1;
    }
    cout << ans << endl;

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:2: error: expected '}' at end of input
   47 | }
      |  ^
a.cc:11:1: note: to match this '{'
   11 | {
      | ^
Language: C++

#include<iostream>
#include<string>
#include<vector>
#define rep(i, start, end) for (int i = (int)start; i < (int)end; ++i)
#define rrep(i, start, end) for (int i = (int)start - 1; i >= end; --i)
#define arep(i, c) for (auto i = (c).begin(); i != (c).end(); ++i)
#define all(x) (x).begin(), (x).end()
using namespace std;
typedef long long ll;

const ll INF = 1LL << 50;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    string S;
    ll K;
    cin >> S >> K;
    int N = (int)S.size();
    if (N == 1) {
        cout << K / 2 << endl;
        return 0;
    }
    ll min_cost = INF;
    rep(i, 0, 26) rep(j, 0, 26) {
        if (i == j) continue;
        string SS(S);
        ll cost = ('a' + i != S[0]) + ('a' + j != S[N - 1]);
        SS[0] = 'a' + i;
        SS[N - 1] = 'a' + j;
        rep(k, 1, N - 1) {
            if (SS[k] != SS[k - 1]) continue;
            SS[k] = get_diff_char(SS[k - 1], SS[k + 1]);
            cost++;
        }
        if (SS[N - 1] == SS[N - 2]) continue;
        min_cost = min(min_cost, cost);
    }
    cout << min_cost * K << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:21: error: 'get_diff_char' was not declared in this scope
   33 |             SS[k] = get_diff_char(SS[k - 1], SS[k + 1]);
      |                     ^~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
char s[105];
int c[105],ch[105];
long long k;

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> s+1;
    cin >> k;
    long long ans = 0;
    int n = strlen(s+1);
    if(s == 1) {
        cout << k/2;
        return 0;
    }
    for(int i = 2;i <= n;i++) {
        if(!c[i-1]&&s[i] == s[i-1]) {
            ans++;
            c[i] = 1;
        }
    }
    long long rans = ans*k;
    if(!c[n]&&s[1] == s[n]) rans += k-1;
    memset(c,0,sizeof(c));
    long long ans2 = 0,rans2 = 0;
    for(int i = n-1;i >= 1;i--) {
        if(!c[i+1]&&s[i] == s[i+1]) {
            ans2++;
            c[i] = 1;
        }
    }
    rans2 = ans2*k;
    if(!c[1]&&s[1] == s[n]) rans2 += k-1;
    //cout << rans << " " << rans2 << '\n';
    cout << min(rans,rans2);
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:13:10: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   13 |     if(s == 1) {
      |        ~~^~~~
Language: C++

// In The Name Of Allah

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

#define int long long

const int inf = 1e18;
const int N = 1e5 + 19;

string s;
int k;

int32_t main() {
    ios::sync_with_stdio(false), cin.tie(0), cout.tie(0);
    cin >> s;
    cin >> k;
    string t = s;
    string z = s;
    sort(t.begin(), t.end());
    if (t[0] == t[t.size() - 1]) {
        if (t.size() % 2 == 1) {
            int x = k % 2;
            return cout << (t.size() * (k / 2)) + x * (t.size() / 2), 0;
        }
        else
            return cout << (t.size() / 2) * k, 0;
    }
    int cnt = 0;
    while (s[0] == s[s.size() - 1]) {
        s += s[0];
        s.erase(0, 1);
        cnt++;
        if (cnt > s.size())
            break;
    }
    if (cnt == 0) {
        return cout << asert(0), 0;
        int ans = 0;
        int tmp = 1;
        for (int i = 0; i < s.size() - 1; i++) {
            if (s[i] == s[i + 1])
                tmp++;
            else
                ans += tmp / 2, tmp = 1;
        }
        ans += tmp / 2;
        cout << ans * k << endl;
    }
    else {
        int ans = 0;
        int tmp = 1;
        for (int i = 0; i < s.size() - 1; i++) {
            if (s[i] == s[i + 1])
                tmp++;
            else
                 ans += tmp / 2, tmp = 1;
        }
        ans += tmp / 2;
        ans *= (k - 1);
        tmp = 0;
        for (int i = 0; i < z.size() - 1; i++) {
            if (z[i] == z[i + 1])
                tmp++;
            else
                ans += tmp / 2, tmp = 1;
        }
        ans += tmp / 2;
        cout << ans << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int32_t main()':
a.cc:38:24: error: 'asert' was not declared in this scope; did you mean 'assert'?
   38 |         return cout << asert(0), 0;
      |                        ^~~~~
      |                        assert
Language: C++

#include<iostream>
#include<string>
using namespace std;

string S;
long long K;

int beginNumber(){
  int n = 1;
  for(auto itr = S.begin(); itr != S.end(); ++itr){
    if(*S.begin() == *itr) ++n;
    else break;
  }
  return n;
}

int endNumber(){
  int n = 1;
  for(auto itr = S.end(); itr != S.begin(); --itr){
    if(*S.end() == *itr) ++n;
    else break;
  }
  return n;
}

long long solve(){
  long long ans = 0, n;
  auto start = S.begin();
  while(start != S.end()){
    n = 1;
    for(auto end = start+1; end != S.end(); ++end){
      if(*end == *start) ++n;
      else break;
    }
    ans += n/2;
    start += n;
  }
  if(*S.begin() != *S.end()) return K*ans;
  else{
    long long bn = beginNumber(), en = endNumber();
    return 0/*K*ans + (K-1)*((bn+en)/2 - bn/2 - en/2);*/
  }
}

int main(){
  cin >> S >> K;
  cout << solve() << endl;
  return 0;
}


Compiler output:
a.cc: In function 'long long int solve()':
a.cc:41:13: error: expected ';' before '}' token
   41 |     return 0/*K*ans + (K-1)*((bn+en)/2 - bn/2 - en/2);*/
      |             ^
      |             ;
   42 |   }
      |   ~
Language: C++

#include <iostream>
#include <string>

using namespace std;

int main(void)
{
	string s;
	int k, len, t_a;
	long int t;

	t = 0;
	t_a = 0;
	len = 0;

	cin >> s;
	cin >> k;

	s += s;

	len = s.length();

	for (int i = 0; i < len-1; i++)
	{
		if (s[i] == s[i + 1])
		{
			t++;
			i++;
		}
	}

	if (t % 2)
	{
		if (t > 2)
		{
			if ((len-1) % 2)
				cout << ((t - 1) / 2)*k + (k / 2);
			}
			else {
				cout << ((t - 1) / 2)*k + (k-1);
			}

		}
		else {
			cout << (k - 1);
		}
	} else {
		cout << (t/2) * k;
	}

	return 0;
}

Compiler output:
a.cc:47:11: error: expected unqualified-id before 'else'
   47 |         } else {
      |           ^~~~
a.cc:51:9: error: expected unqualified-id before 'return'
   51 |         return 0;
      |         ^~~~~~
a.cc:52:1: error: expected declaration before '}' token
   52 | }
      | ^
Language: C

#include<stdio.h>

int main()
{
	char s[100];
    int k,n,i;
    n=s/s[0];
    scanf("%s",s);
    for(i=1;i<n;i++)
    {
    	if(s[i-1]==s[i])
        {
        	count++;
        }
    }
    count=count*k;
    if(s[0]==s[k-1])
    {
    	count=count+k-1
    }
}

Compiler output:
main.c: In function 'main':
main.c:7:8: error: invalid operands to binary / (have 'char *' and 'int')
    7 |     n=s/s[0];
      |       ~^~~~~
      |       |  |
      |       |  char
      |       char *
main.c:13:17: error: 'count' undeclared (first use in this function)
   13 |                 count++;
      |                 ^~~~~
main.c:13:17: note: each undeclared identifier is reported only once for each function it appears in
main.c:19:24: error: expected ';' before '}' token
   19 |         count=count+k-1
      |                        ^
      |                        ;
   20 |     }
      |     ~
Language: C++

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

string s;
ll k;
ll ans,cnt;
int main(){
    cin >> s >> k;
    if(s.length()==1){
        printf("%lld",(k)/2);
        return 0;
    }
    for(int i=1;i<s.length();++i){
        if(s[i]==s[i-1])    ans++,i++;
    }
    if(s.back()==s.front() && s.size()>1 && s[1]!=s.front() && s[s.size()-2]!=s.back()) cnt++;
    ans = ans*k + cnt*(k-1);
    cout << ans << endl;
    return 0;
}#include<bits/stdc++.h>
#define ll long long
using namespace std;

string s;
ll k;
ll ans,cnt;
int main(){
    cin >> s >> k;
    if(s.length()==1){
        printf("%lld",(k)/2);
        return 0;
    }
    for(int i=1;i<s.length();++i){
        if(s[i]==s[i-1])    ans++,i++;
    }
    if(s.back()==s.front() && s.size()>1 && s[1]!=s.front() && s[s.size()-2]!=s.back()) cnt++;
    ans = ans*k + cnt*(k-1);
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc:21:2: error: stray '#' in program
   21 | }#include<bits/stdc++.h>
      |  ^
a.cc:21:3: error: 'include' does not name a type
   21 | }#include<bits/stdc++.h>
      |   ^~~~~~~
a.cc:25:8: error: redefinition of 'std::string s'
   25 | string s;
      |        ^
a.cc:5:8: note: 'std::string s' previously declared here
    5 | string s;
      |        ^
a.cc:26:4: error: redefinition of 'long long int k'
   26 | ll k;
      |    ^
a.cc:6:4: note: 'long long int k' previously declared here
    6 | ll k;
      |    ^
a.cc:27:4: error: redefinition of 'long long int ans'
   27 | ll ans,cnt;
      |    ^~~
a.cc:7:4: note: 'long long int ans' previously declared here
    7 | ll ans,cnt;
      |    ^~~
a.cc:27:8: error: redefinition of 'long long int cnt'
   27 | ll ans,cnt;
      |        ^~~
a.cc:7:8: note: 'long long int cnt' previously declared here
    7 | ll ans,cnt;
      |        ^~~
a.cc:28:5: error: redefinition of 'int main()'
   28 | int main(){
      |     ^~~~
a.cc:8:5: note: 'int main()' previously defined here
    8 | int main(){
      |     ^~~~
Language: C++

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

int main(){
  string S;
  int long long K;
  cin>>S>>K;
  int len = S.size();
  int x;
  int long long ans=0;
  if(len==1){
    cout<<K/2<<endl;
    exit(0);
  }
  if(len==2){
    if(S.at(0)==S.at(1)){
      cout<<K<<endl;
      exit(0);
    }
    else{
      cout<<0<<endl;
      exit(0);
    }
  }
  if(K==1){
    int long long a=0;
    int n=0;
    for(int i=1;i<len;i++){
      if(S.at(i)==S.at(i-1))
        n++;
      else{
        a+=((n+1)/2);
        n=0;
      }
    }
    a+=(n+1)/2;
    cout<<a<<endl;
    exit(0);
  }
  if(S.at(0)==S.at(len-1))
    x=1;
  else
    x=0;
  int num=0;
  if(x==0){
    for(int i=1;i<len;i++){
      if(S.at(i)==S.at(i-1))
        num++;
      else{
        ans+=((num+1)/2)*K;
        num=0;
      }
    }
    cout<<ans<<endl;
  }
  int rnum=0;
  int s=0;
  int e;
  if(x==1){
    for(int i=1;i<len-1;i++){
      if(S.at(i)==S.at(0))
        rnum++;
      else{
        s=i;
        break;
      }
    }
    if(rnum==len-2){
      ans=(len*K)/2;
      cout<<ans<<endl;
    }
    else{
      for(int i=len-2;i>s;i--{
        if(S.at(i)==S.at(len-1))
          rnum++;
        else{
          e=i;
          break;
        }
      }
      for(int i=s;i<e+2;i++){
        if(S.at(i)==S.at(i-1))
          num++;
        else{
          ans+=((num+1)/2)*K;
          num=0;
        }
      }
      rnum+=2;
      ans+=(rnum/2)*(K-1);
      ans+=(s/2);
      ans+=((len-1-e)/2);
      cout<<ans<<endl;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:73:30: error: expected ')' before '{' token
   73 |       for(int i=len-2;i>s;i--{
      |          ~                   ^
      |                              )
Language: Java

#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;

int main(){
    string s;
    int k;
    ll ans1=0, ans2=0, left=0, right=0;
    char bgn = 0;
    cin >> s;
    cin >> k;

    bool b = true;
    for(int i = 0; i<sz(s)-1; i++){
        if(s.at(0)!=s.at(i+1)){b=false;}
    }

    if(b){
        long long lk = k;
        cout << sz(s)*lk/2 << endl;
        return 0;
    }

    while(!s.empty()){
        if((sz(s)>=2&&s.at(0)==s.at(sz(s)-1)&&bgn==0)||(sz(s)>=2&&bgn==s.at(0)&&bgn==s.at(sz(s)-1))){
            ans1 = ans1 + 2;
            left++; right++;
            s.erase(s.begin()); bgn = s.back(); s.pop_back();
           // cout << "type A " << s << endl;
            continue;
        }else if(bgn==s.at(0)){
            ans1++;
            left++;
            s.erase(s.begin());
          //  cout << "type B " << s << endl;

            continue;

        }else if(bgn==s.at(sz(s)-1)){
            ans1++;
            right++;
            s.pop_back();
          //  cout << "type C " << s << endl;

            continue;
        }else{
            break;
        }
    }

    ans1 = ans1 / 2;

    bgn=0;
    int temp = 0;

    while(!s.empty()){
        if(bgn==0){
            bgn=s.back(); temp++; s.pop_back();
        }else{
            if(bgn==s.back()){
                temp++; s.pop_back();
            }else{
                ans2 += temp / 2;
                bgn=s.back();
                s.pop_back();
                temp = 1;
            }
        }
    }

    ans2 += temp / 2;


   // cout << ans1 << " " << ans2 << endl;

    cout << ans2*k + ans1*(k-1) + left/2 + right/2 << endl;


    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:2: error: illegal character: '#'
#define rep(i, n) for(int i=0;i<(n); i++)
^
Main.java:2: error: class, interface, enum, or record expected
#define rep(i, n) for(int i=0;i<(n); i++)
                              ^
Main.java:2: error: class, interface, enum, or record expected
#define rep(i, n) for(int i=0;i<(n); i++)
                                     ^
Main.java:3: error: illegal character: '#'
#define sz(x) int(x.size())
^
Main.java:5: error: class, interface, enum, or record expected
typedef long long ll;
^
Main.java:12: error: not a statement
    cin >> s;
        ^
Main.java:13: error: not a statement
    cin >> k;
        ^
Main.java:21: error: not a statement
        long long lk = k;
        ^
Main.java:22: error: not a statement
        cout << sz(s)*lk/2 << endl;
                           ^
Main.java:78: error: not a statement
    cout << ans2*k + ans1*(k-1) + left/2 + right/2 << endl;
                                                   ^
Main.java:7: error: unnamed classes are a preview feature and are disabled by default.
int main(){
^
  (use --enable-preview to enable unnamed classes)
Main.java:21: error: ';' expected
        long long lk = k;
            ^
14 errors
Language: C++

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

int main() {
  string s;
  cin >> s;
  long long  k;
  cin >> k;
  long long ans = 0;
  int a = 0,n = s.size();
  if(n == 1){
    cout << k/2 << endl;
  }
  else {
    for(int i=0;i<n-1;i++){
      if(s.at(i) == s.at(i+1)){
        ans++;
        i++;
      }
    }
    int q=0,w=0;
    long long e=0;
    for(int i=0;i<n;i++){
      if(s.at(i) == s.at(0)){
        w++;
      }
      else {
        break;
      }
    }
    for(int i=n-1;i>=0;i--){
      if(s.at(n-1) == s.at(i)){
        q++;
      }
      else {
        break;
      }
    }
    if(q >1 || w > 1){
    if(q%2 == 1 && w%2 == 1){
      e = k-1;
    }
    }
    
    long long x=0,y=0;
    for(int i=0;i<n-1;i++){
      if(s.at(i) == s.at(i+1)){
        x++;
      }
    }
    if(x == n-1 && n%2 == 1 && ){
      y = k/2;
      e = 0;
    }
    
    if(s.at(0) == s.at(n-1) && n>=3){
      if(s.at(n-2) != s.at(n-1) && s.at(0) != s.at(1)){
      ans++;
      a = -1;
    }
    }
    ans *= k;
    if(a == -1){
      ans--;
    }
    cout << ans +y + e << endl;
  }
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:52:32: error: expected primary-expression before ')' token
   52 |     if(x == n-1 && n%2 == 1 && ){
      |                                ^
Language: C++

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

int main() {
  string s;
  cin >> s;
  long long  k;
  cin >> k;
  long long ans = 0;
  int a = 0,n = s.size();
  if(n == 1){
    cout << k/2 << endl;
  }
  else {
    for(int i=0;i<n-1;i++){
      if(s.at(i) == s.at(i+1)){
        ans++;
        i++;
      }
    }
    int q=0,w=0;
    long long e=0;
    for(int i=0;i<n;i++){
      if(s.at(i) == s.at(0)){
        w++;
      }
      else {
        break;
      }
    }
    for(int i=n-1;i>=0;i--){
      if(s.at(n-1) == s.at(i)){
        q++;
      }
      else {
        break;
      }
    }
    if(q >1 || w > 1){
    if(q%2 == 1 && w%2 == 1){
      e = k-1;
    }
    }
    
    if(s.at(0) == s.at(n-1) && n>=3){
      if(s.at(n-2) != s.at(n-1) && s.at(0) != s.at(1)){
      ans++;
      a = -1;
    }
    }
    ans *= k;
    if(a == -1){
      ans--;
    }
    cout << ans + y + e << endl;
  }
    
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:56:19: error: 'y' was not declared in this scope
   56 |     cout << ans + y + e << endl;
      |                   ^
Language: C++

#include<iostream>
#include<iomanip>
#include<cstdio>
#include<string>
#include<cstring>
#include<climits>
#include<algorithm>
#include<vector>
#include<cmath>
#include<map>
#include<set>
#include<stack>
#include<queue>
#include<deque>
#include<tuple>
#include<list>
#include<unordered_map>
#define ll long long
#define pii pair<int,int>
#define pll pair<ll,ll>
#define vii vector<int>
#define vll vector<ll>
#define lb lower_bound
#define pb push_back
#define mp make_pair
#define rep(i,n) for(ll i=0;i<n;i++)
#define rep2(i,a,b) for(ll i=a;i<b;i++)
#define repr(i,n) for(ll i=n-1;i>=0;i--)
#define all(x) x.begin(),x.end()
// #define int ll
using namespace std;
const int INF (1 << 30);
const ll LLINF (1LL << 55LL);
const int MOD = 1000000007;
const int MAX = 510000;

int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(15);
    string s;
    ll k,now = 1,nowr = 1,nowl = 1,ans = 0;
    vll v;
    cin >> s >> k;
    ll n = s.size();
    ll r = n-1,l = 0;
    bool flag = true;
    rep(i,n){
        if(s[i]! = s[0]){
            flag = false;
        }        
    }
    if(flag){
        cout<<n*k/2<<endl;
        return 0;
    }
    if(s[0]==s[n-1]){
        rep(i,n-1){
            if(s[i]==s[i+1]){
                nowl++;
            }
            else{
                l=i+1;
                break;
            }
        }
        for(ll i=n-1;i>0;i--){
            if(s[i]==s[i-1]){
                nowr++;
            }
            else{
                r=i-1;
                break;
            }
        }
    }
    rep2(i,l,r){
        if(s[i]==s[i+1]){
            now++;
        }
        else{
            if(now!=1)v.push_back(now);
            now=1;
        }
    }
    if(now!=1)v.push_back(now);
    for(ll i:v){
        ans+=(i/2*k);
    }
    ans+=nowr/2;
    ans+=nowl/2;
    if(s[0]==s[n-1])ans+=(nowr+nowl)/2*(k-1);
    cout<<ans<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:49:16: error: expected ')' before '!' token
   49 |         if(s[i]! = s[0]){
      |           ~    ^
      |                )
Language: C++

#include <iostream>
#include <string>

using namespace std;

int main() {
	
	
	string s;
	cin >> s;
	long long k;
	cin >> k;
	
	long long len = s.length();
	long long pair = 0;
	long long last = 0;
	
	long long firstChain = 1;
	bool keepChain = true;
	
	for (long long i = 0; i < len; i++)
	{
		if (i > 0 && keepChain)
		{
			if (s[i] == s[0])
				firstChain += 1;
			else
				keepChain = false;
		}
		
		if (i == len-1)a
		{
			if (s[i] == s[0] && firstChain%2 == 1)
				last += 1;
			
			break;
		}
		
		if (s[i] == s[i+1])
		{
			pair += 1;
			i += 1;
		}
	}
	long long ans = pair * k;
	if (firstChain == 1)
		ans += last * (k-1);
	else
		ans += last * (k/2);
	
	cout << ans;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:32: error: 'a' was not declared in this scope
   31 |                 if (i == len-1)a
      |                                ^
Language: C

#include <stdio.h>

int main(){
  char s[110];
  scanf("%s",s);
  
  int k;
  scanf("%d",&k);
  
  int a[110];
  int b=0,c=1,d;
  for(int i=0;i<=110;i++){
    if(s[i+1]==null){
      d=i;
      b+=1;
      a[b]=c;
      break;
    }
    
    if(s[i]==s[i+1]){
      c+=1;
    }else{
      b+=1;
      a[b]=c;
      c=1;
    }
  }
  
  long ans;
  int sum=0;
  
  
  if(b>=2){
    if(s[0]==s[d]){
      for(int i=2;i<=b-1;i++){
        if(a[i]%2==1){
          sum+=(a[i]-1)/2;
        }else{
          sum+=a[i]/2;
        }
      }
    
      ans=sum*k;
    
      int e=a[1]+a[b];
    
      if(e%2==1){
        ans+=(k-1)*((e-1)/2);
      }else{
        ans+=(k-1)*(e/2);
      }
    
      if(a[1]%2==1){
        ans+=(a[1]-1)/2;
      }else{
        ans+=a[1]/2;
      }
    
      if(a[b]%2==1){
        ans+=(a[b]-1)/2;
      }else{
        ans+=a[b]/2;
      }
    }else{
      for(int i=1;i<=b;i++){
        if(a[i]%2==1){
          sum+=(a[i]-1)/2;
        }else{
          sum+=a[i]/2;
        }
      }
      ans=sum*k;
    }
  
    printf("%ld",ans); 
    
  }else{
    if(((d+1)*k)%2==1){
      ans=((d+1)*k-1)/2;
    }else{
      ans=((d+1)*k)/2;
    }
    printf("%ld",ans);
  }
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:13:16: error: 'null' undeclared (first use in this function)
   13 |     if(s[i+1]==null){
      |                ^~~~
main.c:13:16: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include<iostream>
using namespace std;
unsigned long long intcount(string s)
{
	unsigned long long int count1=1,finacount=0;
	for(unsigned long long int i=0;i<s.length()-1;i++)
	{
		while(i<s.length()-1&&s[i]==s[i+1])
		{
			count1++;
			i++;
		}
		finacount+=count1/2;
		count1=1;
	}
	return finacount;
}
int main()
{
	string s;
	unsigned long long int k;
	cin>>s;
	cin>>k;
	unsigned long long int sfinacount=0,dfinacount=0;
	//single
	sfinacount+=count(s);
	//double
	string p="";
	p=s+s;
	dfinacount+=count(p);
	if(dfinacount==2*sfinacount)
	{
		sfinacount*=k;
	}
	else
	{
		sfinacount*=k;
		sfinacount+=k-1;
	}
	cout<<sfinacount;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:21: error: 'count' was not declared in this scope
   26 |         sfinacount+=count(s);
      |                     ^~~~~
Language: C++

#include <bits/stdc++.h>
#define rep(i,n) for(int i=0; i<(n); i++)

using namespace std;

typedef long long ll;
typedef pair<int, int> P;

int main()
{
    string S; cin >> S;
    ll K; cin >> K;
    ll oddCount = 0;
    string C = S;
  	ll k = K/2;
  	if (S.size() == 1) {
      cout << k << endl;
      return 0;
    }
  
    for (ll i=0; i<S.size()-1; i++) {
        if (S.at(i) == 'R') continue;
        if (S.at(i) == S.at(i+1)) {
            S[i+1] = 'R';
            oddCount++;
        }
    }

    ll evenCount = 0;

    for (ll i=0; i<C.size()-1; i++) {
        if (i==0) {
            char last = S.at(S.size()-1);
            if (last != 'R' && C.at(0) == last) {
                C[0] = 'R';
                evenCount++;
            }
        }
      	
        if (C.at(i) == 'R') continue;
        
        if (C.at(i) == C.at(i+1)) {
            C[i+1] = 'R';
            evenCount++;
        }
      
      	
     }
	if (C.at(0) == 'R' && C.at(S.size()-1) != 'R') {
      	cout << ((oddCount) + (evenCount*(K-1))<< endl;
    } else {
    	cout << ((oddCount*(K-k)) + (evenCount*k))<< endl;
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:50:48: error: invalid operands of types 'll' {aka 'long long int'} and '<unresolved overloaded function type>' to binary 'operator<<'
   50 |         cout << ((oddCount) + (evenCount*(K-1))<< endl;
      |                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~
a.cc:50:55: error: expected ')' before ';' token
   50 |         cout << ((oddCount) + (evenCount*(K-1))<< endl;
      |                 ~                                     ^
      |                                                       )
Language: C++

#include<iostream>
using namespace std;
unsigned long long intcount(string s)
{
	unsigned long long intcount1=1,finacount=0;
	for(unsigned long long inti=0;i<s.length()-1;i++)
	{
		while(i<s.length()-1&&s[i]==s[i+1])
		{
			count1++;
			i++;
		}
		finacount+=count1/2;
		count1=1;
	}
	return finacount;
}
int main()
{
	string s;
	unsigned long long int k;
	cin>>s;
	cin>>k;
	unsigned long long intsfinacount=0,dfinacount=0;
	//single
	sfinacount+=count(s);
	//double
	string p="";
	p=s+s;
	dfinacount+=count(p);
	if(dfinacount==2*sfinacount)
	{
		sfinacount*=k;
	}
	else
	{
		sfinacount*=k;
		sfinacount+=k-1;
	}
	cout<<sfinacount;
}

Compiler output:
a.cc: In function 'long long unsigned int intcount(std::string)':
a.cc:6:39: error: 'i' was not declared in this scope
    6 |         for(unsigned long long inti=0;i<s.length()-1;i++)
      |                                       ^
a.cc:10:25: error: 'count1' was not declared in this scope; did you mean 'intcount1'?
   10 |                         count1++;
      |                         ^~~~~~
      |                         intcount1
a.cc:13:28: error: 'count1' was not declared in this scope; did you mean 'intcount1'?
   13 |                 finacount+=count1/2;
      |                            ^~~~~~
      |                            intcount1
a.cc: In function 'int main()':
a.cc:26:9: error: 'sfinacount' was not declared in this scope; did you mean 'dfinacount'?
   26 |         sfinacount+=count(s);
      |         ^~~~~~~~~~
      |         dfinacount
a.cc:26:21: error: 'count' was not declared in this scope
   26 |         sfinacount+=count(s);
      |                     ^~~~~