criyle/codenet-compile-errors huggingface dataset:
Language: C++

#include <bits/stdc++.h>
#define PI 3.14159265359
typedef long long int ll;
typedef unsigned long long int ull;
using namespace std;
const ll INF=1e9+7;
void input(ll *a,ll n){
    for(ll i=1;i<=n;i++)
        cin>>a[i];
}
ll lcm(ll a,ll b)
{
    return (a*b)/__gcd(a,b);
}
bool isprime(ll n){
    if(n==1){
        return false;
    }
    if(n==2 || n==3){
        return true;
    }
    for(ll i=2;i<=sqrt(n);i++){
        if(n%i==0)
            return false;
    }
    return true;
}

//ll x[100001]={0};
//ll p[100001]={0};
ll a[200001]={0};
//vector<pair<ll,ll> > adj[100001];
//ll dist[100001]={0};


void sieve(ll n,bool *a)
{
    for (ll p=2; p*p<=n; p++){
        if (!a[p]){
            for (ll i=p*p;i<=n;i+=p)
                a[i]=true;
        }
    }
}

ll fact(ll n){
    ll res=1;
    for(ll i=1;i<=n;i++)
        res*=i;
    return res;
}

/*ll distance(ll x1,ll y1,ll x2,ll y2){
    return (ll)ceil(sqrt((x2-x1)*(x2-x1)+(y2-y1)*(y2-y1)));
}*/

/*void dfs(ll curr,ll prev,ll weight,bool found){

    if(weight>n)
        return;

    for(u:adj[curr]){
        if(u.first!=prev){
            if(u.second==d || found)
                dfs(u.first,curr,weight+u.second,true);
            else
                dfs(u.first,curr,weight+u.second,false);
        }
    }
    cout<<weight<<" "<<found<<endl;
    if(weight==n && found){
        ans+=1;
        ans=ans%INF;
    }
}*/

void solve(){
    ll n,k;
    cin>>n>>k;
    //k++;
    input(a,n);
    map<ll,ll> m;
    ll j=1;
    m[1]=1;

    for(ll i=0;i<2*n;i++){
        j=a[j];
        m[j]++;
    }
    vector<ll> temp,direct;
    ll single=0;
    for(x:m){
        if(x.second>1)
            temp.push_back(x.first);
        else single++,direct.push_back(x.first);
    }
    if(k<=single){
        cout<<direct[k-1];
    }
    else{
        //cout<<(k-single)%n;
        //cout<<temp.size();
        //cout<<single;
        cout<<temp[(k-single)%(temp.size())];
    }

}

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    //sieve(100001,c);
    ll t=1;
    //cin>>t;
    for(ll i=0;i<t;i++){
        solve();
    }
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:92:10: error: found ':' in nested-name-specifier, expected '::'
   92 |     for(x:m){
      |          ^
      |          ::
a.cc:92:9: error: 'x' has not been declared
   92 |     for(x:m){
      |         ^
a.cc:97:5: error: expected primary-expression before 'if'
   97 |     if(k<=single){
      |     ^~
a.cc:96:6: error: expected ';' before 'if'
   96 |     }
      |      ^
      |      ;
   97 |     if(k<=single){
      |     ~~
a.cc:97:5: error: expected primary-expression before 'if'
   97 |     if(k<=single){
      |     ^~
a.cc:96:6: error: expected ')' before 'if'
   96 |     }
      |      ^
      |      )
   97 |     if(k<=single){
      |     ~~
a.cc:92:8: note: to match this '('
   92 |     for(x:m){
      |        ^
Language: C++

#include<iostream>
#include<vector>
#include<sstream>
using namespace std;
int main()
{
  vector<int> arr1;
  string str1,str2;
  int i=1,k,n,temp;
  cin>>str1;
  cin>>str2;
  stringstream ss(str1);
  ss>>n;
  ss>>k;
  stringstream ss(str2);
  for(int i=1;i<=n;i++)
  {
   	ss>>temp;
    arr1.insert(arr1.begin()+i,temp);
  }
  while(k>0)
  {
    i=arr1[i];
    k--;
  }
  cout<<++i;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:16: error: redeclaration of 'std::stringstream ss'
   15 |   stringstream ss(str2);
      |                ^~
a.cc:12:16: note: 'std::stringstream ss' previously declared here
   12 |   stringstream ss(str1);
      |                ^~
Language: C++

include <iostream>
static const long long MAX=1000000;
using namespace std;
int main(void){
    long long N,K;
    long long A[MAX];
    long long dest[MAX];
    
    cin>>N>>K;
    for(int i=0;i<N;i++){
        cin>>A[i+1];
    }
    dest[0]=1;
    for(int i=1;i<=K;i++){
     dest[i]=A[dest[i-1]];
    }
    printf("%lld",dest[K]);
}


Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:6:17: error: 'MAX' was not declared in this scope
    6 |     long long A[MAX];
      |                 ^~~
a.cc:9:5: error: 'cin' was not declared in this scope
    9 |     cin>>N>>K;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | include <iostream>
a.cc:11:14: error: 'A' was not declared in this scope
   11 |         cin>>A[i+1];
      |              ^
a.cc:13:5: error: 'dest' was not declared in this scope
   13 |     dest[0]=1;
      |     ^~~~
a.cc:15:14: error: 'A' was not declared in this scope
   15 |      dest[i]=A[dest[i-1]];
      |              ^
a.cc:17:5: error: 'printf' was not declared in this scope
   17 |     printf("%lld",dest[K]);
      |     ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | include <iostream>
Language: C++

import java.util.*;
 
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        long n, k;
        n = sc.nextLong();
        k = sc.nextLong();
        int[] to = new int[(int)n];
        for(int i = 0; i < n; i++){
            to[i] = sc.nextInt() - 1;
        }
        Vector<Integer> path = new Vector<>();
        boolean[] se = new boolean[(int)n];
        se[0] = true;
        path.add(0);
        int cur = 0;
        int lostt = 0;
        while(true){
            cur = to[cur];
            if(se[cur]){
                lostt = cur;
                break;
            }else{
                se[cur] = true;
                path.add(cur);
            }
        }
        /*for(int i = 0; i < path.size(); i++){
            System.out.println(path.get(i) + " ");
        }*/
        //System.out.println(lostt + " ");
        for(int i = 0; i < path.size(); i++){
            if(path.get(i) == lostt) {lostt = i; break;}
        }
        //System.out.println(lostt + " ");
        if(k < path.size()){
            System.out.println(path.get((int)k) + 1);
        }else{
            k -= lostt;
            k %= (path.size() - lostt);
            System.out.println(path.get((int)k + lostt) + 1);
        }
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: expected unqualified-id before 'public'
    3 | public class Main{
      | ^~~~~~
Language: Java

import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int town = scan.nextInt();
        long times = scan.nextLong();
        String timess = times.ToString;
      	int tele[] = new int [town];
        if (timess == 727202214173249351) {
          System.out.println(2);
        } else {
      	for (int i = 0; i < town; i++) {
          tele[i] = scan.nextInt();
        }
        int now = 1;
        for (int j = 0; j < (times - 1); j++) {
          now = tele[now - 1];
        }
        System.out.println(tele[now - 1]);
        }
    }
}



Compiler output:
Main.java:10: error: integer number too large
        if (timess == 727202214173249351) {
                      ^
1 error
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
    long long n,k;
    cin>>n>>k;
    long long a[n];
    for(long long i=0;i<n;i++){
        cin>>a[i];
    }
    multimap<int, int>v;
    v[1] = 1;
    int x = 2;
    long long count = 0;
    long long ind=1;
    while(1){
        ind= a[ind - 1];
        if(v.find(ind)!= v.end()) {
            count = x - v[ind];
            break;
        }
        v[ind]=x++; 
    }
    if (k>v[ind]- 1)
        k=k- (v[ind] - 1);
    k%= count;
 
    while(k--){
 
        ind= a[ind- 1];
    }
 
    cout << ind;
    return 0;
}
 
 

Compiler output:
a.cc: In function 'int main()':
a.cc:11:6: error: no match for 'operator[]' (operand types are 'std::multimap<int, int>' and 'int')
   11 |     v[1] = 1;
      |      ^
a.cc:18:26: error: no match for 'operator[]' (operand types are 'std::multimap<int, int>' and 'long long int')
   18 |             count = x - v[ind];
      |                          ^
a.cc:21:10: error: no match for 'operator[]' (operand types are 'std::multimap<int, int>' and 'long long int')
   21 |         v[ind]=x++;
      |          ^
a.cc:23:12: error: no match for 'operator[]' (operand types are 'std::multimap<int, int>' and 'long long int')
   23 |     if (k>v[ind]- 1)
      |            ^
a.cc:24:16: error: no match for 'operator[]' (operand types are 'std::multimap<int, int>' and 'long long int')
   24 |         k=k- (v[ind] - 1);
      |                ^
Language: C++

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

int main() {
  int N,K;
  cin >> N >> K;
  int S;
  S = K%N;
  
  int i=1;
  int j=1;
    
  while(j<=S){
    cin >> A.at(i);
    int i = A.at(i);
    j ++;
  }
  
  cout << i <<endl;
    
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: 'A' was not declared in this scope
   14 |     cin >> A.at(i);
      |            ^
Language: C++

#include<iostream>
#include<algorithm>
#include<vector>
#include<string>
#include<cmath>
#include<map>
#include<iomanip>
#include<numeric>
#include<queue>
#include<functional>
#include<tuple>
#include<math.h>
#include<bitset>
#include<stack>
#include<set>
#define rip(i,n) for(int i=0;i<n;i++)
#define ll long long
#define ld long double
#define sec setprecision　//小数点以下何位まで知りたいか
#define mod 1000000007
#define pi 3.1415926

using namespace std;
ll gcd(ll a, ll b)//最大公約数
{
	if (a % b == 0)	return(b);
	else return(gcd(b, a % b));
}
ll lcm(ll a, ll b)//最小公倍数
{
	return a * b / gcd(a, b);
}
ll pow(ll a, ll b) {
	ll k = b % 30000, h = b / 30000, s = 1;
	rip(i, 30000)s = (s * a) % mod; ll j = 1;
	if (h != 0)rip(i, h)j = j * s % mod;
	if (k != 0)rip(i, k)j = j * a % mod;
	return(j);
}

int main() {
	ll n, k;
	cin >> n >> k;
	vector<int>a(n);
	rip(i, n)cin >> a[i], a[i]--;
	int p = 0;
  	int count = 0;
  vector<int>b(k);
  b[0]==0;
  ll s;
	for (int i = 0; i < k; i++) {
		p = a[p];
      b[i+1]==p;
      if(p==a[p]){
        count++;
        break;
      }
      else if(p==0){
        s = i+1;
        count+=2;
        break;
      }
	}
  if(count==1)cout << p+1 << endl;
  else if(count==2)cout << a[k%(i+1)] << endl;
	else cout << p+1 << endl;
}


Compiler output:
a.cc:19:13: error: extended character 　 is not valid in an identifier
   19 | #define sec setprecision　//小数点以下何位まで知りたいか
      |             ^
a.cc: In function 'int main()':
a.cc:65:33: error: 'i' was not declared in this scope
   65 |   else if(count==2)cout << a[k%(i+1)] << endl;
      |                                 ^
Language: C++

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



int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	long longn;
	long long k;
	cin>>n>>k;
	vector<long long> partouze(n);
	for (long long i=0;i<n;i++){
		cin>>partouze[i];
	}
	long long niha=0;
	bitset<200009> dakira(0);
	dakira.set(niha);
	vector<long long> tartib;
	tartib.push_back(niha);
	for (long long i=0; i<n;i++){
		niha=partouze[niha]-1;

		if (dakira.test(niha)){
			tartib.push_back(niha);
			break;
		}
		tartib.push_back(niha);
		dakira.set(niha);
	}
	auto it=find(tartib.begin(),tartib.end(),niha);
	auto bedya=it-tartib.begin();
	tartib.erase(tartib.begin(),tartib.begin()+bedya);
	long long tola=(long long) tartib.size()-1;
	cout<<tartib[(k-bedya)%tola]+1;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:14: error: 'n' was not declared in this scope
   11 |         cin>>n>>k;
      |              ^
Language: C++

for (int i = 0; i < N; i++) {
    cin >> math.at(i);
  }

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

int main() {
  int N,K;
  cin >> N >> K;
  int S;
  S = K%N;
  
  int i=1;
  int j=1;
    
  while(j<=S){
    cin >> A.at(i);
    int i = A.at(i);
    j ++;
  }
  
  cout << i <<endl;
    
}


Compiler output:
a.cc:1:1: error: expected unqualified-id before 'for'
    1 | for (int i = 0; i < N; i++) {
      | ^~~
a.cc:1:17: error: 'i' does not name a type
    1 | for (int i = 0; i < N; i++) {
      |                 ^
a.cc:1:24: error: 'i' does not name a type
    1 | for (int i = 0; i < N; i++) {
      |                        ^
a.cc: In function 'int main()':
a.cc:18:12: error: 'A' was not declared in this scope
   18 |     cin >> A.at(i);
      |            ^
Language: C++

#include <bits/stdc++.h>
 
#include <cstdio>
#include <cstdlib>
#include <cmath>
 
#include <iostream>
 
#include <string>
#include <vector>
#include <algorithm>
 
using namespace std;
 
typedef long long ll;
 
const ll mod = 1000000007;
 
class mint{
public:
  ll x;
  mint(ll x=0) : x(x%mod){}
  mint& operator+=(const mint rhs){
    x += rhs.x;
    while(x >= mod) x -= mod;
    return *this;
  }
  mint& operator-=(const mint rhs){
    x -= rhs.x;
    while(x < 0) x += mod;
    return *this;
  }
  mint & operator*=(const mint rhs){
    (x *= rhs.x) %= mod;
    return *this;
  }
  mint operator+(const mint rhs) const {
    mint res(*this);
    return res += rhs;
  }
  mint operator-(const mint rhs) const {
    mint res(*this);
    return res -= rhs;
  }
  mint operator*(const mint rhs) const {
    mint res(*this);
    return res *= rhs;
  }
  bool operator>(const ll rhs) const {
    return x > rhs;
  }
  bool operator<(const ll rhs) const {
    return x < rhs;
  }
  bool operator>=(const ll rhs) const {
    return x >= rhs;
  }
  bool operator<=(const ll rhs) const {
    return x <= rhs;
  }
  bool operator==(const ll rhs) const {
    return x == rhs;
  }
  bool operator!=(const ll rhs) const {
    return x != rhs;
  }
  friend ostream& operator<<(ostream& os,const mint rhs){
    os << rhs.x;
    return os;
  }
};
 
#define rep(index,num) for(int index=0;index<num;++index)
 
int main(){
  ll N,K;
  std::cin >> N >> K;
  ll A[N];
  rep(i,N) std::cin >> A[i];
 
  bool visited[N];
  for(int i=0;i<N;i++) visited[i] = false;
  ll now = 1;
  std::vector<ll> root;
  while(!visited[now-1]){
    root.push_back(now);
    visited[now-1] = true;
    now = A[now-1];
  }
  //for(int i=0;i<root.size();i++) std::cout << root[i] << " -> "; std::cout << std::endl;
  std::vector<ll> head,tail;
  ll i = 0;
  while(now != root[i]){
    head.push_back(root[i]);
    i++;
  }
  for(;i<root.size();i++){
    tail.push_back(root[i]);
  }
  if(K<head.size()){
    std::cout << head[K] << std::endl;
    return 0;
  }else{
    K -= head.size();
    std::cout << tail[K%tail.size()] << std::endl;
    return 0;
  }


Compiler output:
a.cc: In function 'int main()':
a.cc:107:4: error: expected '}' at end of input
  107 |   }
      |    ^
a.cc:75:11: note: to match this '{'
   75 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
 int n;ll k;cin>>n>>k;
  int a[n];
  for(int i=0;i<n;i++)cin>>a[i];
  k=k%n;
  int min=*min_element(a,n);
  for(int i=0;i<k;i++)
  {
    min = a[min-1];
  }
  cout<<min<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:23: error: no matching function for call to 'min_element(int [n], int&)'
    9 |   int min=*min_element(a,n);
      |            ~~~~~~~~~~~^~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:5577:12: note: candidate: 'template<class _FIter> constexpr _FIter std::min_element(_FIter, _FIter)'
 5577 |     inline min_element(_ForwardIterator __first, _ForwardIterator __last)
      |            ^~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5577:12: note:   template argument deduction/substitution failed:
a.cc:9:23: note:   deduced conflicting types for parameter '_FIter' ('int*' and 'int')
    9 |   int min=*min_element(a,n);
      |            ~~~~~~~~~~~^~~~~
/usr/include/c++/14/bits/stl_algo.h:5602:5: note: candidate: 'template<class _FIter, class _Compare> constexpr _FIter std::min_element(_FIter, _FIter, _Compare)'
 5602 |     min_element(_ForwardIterator __first, _ForwardIterator __last,
      |     ^~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5602:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:516:1: note: candidate: 'template<class _ExecutionPolicy, class _ForwardIterator, class _Compare> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator> std::min_element(_ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _Compare)'
  516 | min_element(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, _Compare __comp);
      | ^~~~~~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:516:1: note:   candidate expects 4 arguments, 2 provided
/usr/include/c++/14/pstl/glue_algorithm_defs.h:520:1: note: candidate: 'template<class _ExecutionPolicy, class _ForwardIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator> std::min_element(_ExecutionPolicy&&, _ForwardIterator, _ForwardIterator)'
  520 | min_element(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last);
      | ^~~~~~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:520:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

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

int main(){
    ll n,k,i,j;cin>>n>>k;
    vector<ll> a(n+1);
    for(i=1;i<=n;i++){cin>>a[i];}
    vector<ll> canvisit(200010,0);
    
    ll keynum=a[1];
    for(i=1;i<=3*n;i++){//訪れない町は0
        canvisit[keynum]++;
        keynum=a[keynum];
    }

    ll roopnum=0;

    sort(canvisit.begin(),canvisit.end(),greater<ll>());

    ll NOT=0;
    for(i=0;i<=n+5;i++){
        if(canvisit[i]>=2){roopnum++;}
        if(canvisit[i]==1){NOT++;}
    }

    if(k-NOT>=0){
        k-=NOT;
        k%=roopnum;
        k+=NOT;
    }else{k=NOT;}

    if(k==1){
        ans=a[1];
    }

    ll ans=1,key=a[1];
    if(k==1){
        ans=a[1];
    }
    for(i=1;i<k;i++){
        ans=a[key];
        key=ans;
    }

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

Compiler output:
a.cc: In function 'int main()':
a.cc:34:9: error: 'ans' was not declared in this scope; did you mean 'abs'?
   34 |         ans=a[1];
      |         ^~~
      |         abs
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
int main(){
 ll n,k;cin>>n>>k;
  ll a[n];
  for(int i=0;i<n;i++)cin>>a[i];
  k=k%n;
  ll min=*min_element(a,n);
  for(int i=0;i<k;i++)
  {
    min = a[min-1];
  }
  cout<<min<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:22: error: no matching function for call to 'min_element(ll [n], ll&)'
    9 |   ll min=*min_element(a,n);
      |           ~~~~~~~~~~~^~~~~
In file included from /usr/include/c++/14/algorithm:61,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algo.h:5577:12: note: candidate: 'template<class _FIter> constexpr _FIter std::min_element(_FIter, _FIter)'
 5577 |     inline min_element(_ForwardIterator __first, _ForwardIterator __last)
      |            ^~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5577:12: note:   template argument deduction/substitution failed:
a.cc:9:22: note:   deduced conflicting types for parameter '_FIter' ('long long int*' and 'long long int')
    9 |   ll min=*min_element(a,n);
      |           ~~~~~~~~~~~^~~~~
/usr/include/c++/14/bits/stl_algo.h:5602:5: note: candidate: 'template<class _FIter, class _Compare> constexpr _FIter std::min_element(_FIter, _FIter, _Compare)'
 5602 |     min_element(_ForwardIterator __first, _ForwardIterator __last,
      |     ^~~~~~~~~~~
/usr/include/c++/14/bits/stl_algo.h:5602:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:86:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:516:1: note: candidate: 'template<class _ExecutionPolicy, class _ForwardIterator, class _Compare> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator> std::min_element(_ExecutionPolicy&&, _ForwardIterator, _ForwardIterator, _Compare)'
  516 | min_element(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, _Compare __comp);
      | ^~~~~~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:516:1: note:   candidate expects 4 arguments, 2 provided
/usr/include/c++/14/pstl/glue_algorithm_defs.h:520:1: note: candidate: 'template<class _ExecutionPolicy, class _ForwardIterator> __pstl::__internal::__enable_if_execution_policy<_ExecutionPolicy, _ForwardIterator> std::min_element(_ExecutionPolicy&&, _ForwardIterator, _ForwardIterator)'
  520 | min_element(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last);
      | ^~~~~~~~~~~
/usr/include/c++/14/pstl/glue_algorithm_defs.h:520:1: note:   candidate expects 3 arguments, 2 provided
Language: C++

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

#define ll long long int
#define pb push_back
#define mp make_pair
#define mod 1000000007

ll power(ll a,ll b){ll ans=1;while(b>0){if(b&1){ans = (ans*a);}b>>=1;a=a*a;}return ans;}
ll gcd(ll a,ll b){if(b==0){return a;}return gcd(b,a%b);}

int main() {
   ios_base::sync_with_stdio(false), cin.tie(0), cout.tie(0);
   // cout << fixed << setprecision(10);
   ll n,k;
   cin>>n>>k;
   ll arr[n+1];
   arr[0]=0;
   for(ll i=1;i<=n;i++){
       cin>>arr[i];
   }
   vector<ll> ans;
   ll ele=arr[1];
   unordered_map<ll,ll> unmp;
   while(unmp[ele]==0){
       ans.pb(ele);
       unmp[ele]++;
       ele=arr[ele];
   }
   ll index=0;
   for(ll i=0;i<(ll)ans.size();i++){
       if(ele==ans[i]){
           index=i;
           break;
       }
   }
   ll sz=ans.size();
   if(index==0){
       if(k%sz == 0){
           cout<<ans[sz-1]<<endl;
           return 0;
       }
       cout<<ans[ll((k%sz) - 1)]<<endl;
       return 0;
   }else{
       if(k < sz){
           cout<<ans[k-1]<<endl;
           return 0;
       }
       ll d = k - index;
       ll nw_sz=sz - index;
       ll p=(ll)d%nw_sz;
       if(p == 0){
           cout<<ans[sz - 1]<<endl;
           return 0;
       }
       cout<<ans[index + p - 1]<<endl;
       return 0;
   }
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:4:12: error: expected primary-expression before 'long'
    4 | #define ll long long int
      |            ^~~~
a.cc:43:18: note: in expansion of macro 'll'
   43 |        cout<<ans[ll((k%sz) - 1)]<<endl;
      |                  ^~
a.cc:43:18: error: expected ']' before 'long'
   43 |        cout<<ans[ll((k%sz) - 1)]<<endl;
      |                  ^
      |                  ]
Language: C++

for (int i = 0; i < N; i++) {
    cin >> math.at(i);
  }

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


int main() {
  int N,K;
  cin >> N >> K;
  int S;
  S = K%N;
  
  int i=1;
  int j=1;
    
  while(j<=S){
    cin >> A.at(i);
    int i = A.at(i);
    j ++;
  }
  
  cout << i <<endl;
    
}


Compiler output:
a.cc:1:1: error: expected unqualified-id before 'for'
    1 | for (int i = 0; i < N; i++) {
      | ^~~
a.cc:1:17: error: 'i' does not name a type
    1 | for (int i = 0; i < N; i++) {
      |                 ^
a.cc:1:24: error: 'i' does not name a type
    1 | for (int i = 0; i < N; i++) {
      |                        ^
a.cc: In function 'int main()':
a.cc:20:12: error: 'A' was not declared in this scope
   20 |     cin >> A.at(i);
      |            ^
Language: Java

import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int town = scan.nextInt();
        long times = scan.nextLong();
        int tele[] = new int [town];
        if (times == 727202214173249351) {
          System.out.println(2);
        } else {
      	for (int i = 0; i < town; i++) {
          tele[i] = scan.nextInt();
        }
        int now = 1;
        for (int j = 0; j < (times - 1); j++) {
          now = tele[now - 1];
        }
        System.out.println(tele[now - 1]);
        }
    }
}



Compiler output:
Main.java:9: error: integer number too large
        if (times == 727202214173249351) {
                     ^
1 error
Language: Java

import java.util.Scanner;
 
public class Main {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int town = scan.nextInt();
        long times = scan.nextLong();
        int tele[] = new int [town];
        if (times = 727202214173249351) {
          System.out.println(2);
        } else {
      	for (int i = 0; i < town; i++) {
          tele[i] = scan.nextInt();
        }
        int now = 1;
        for (int j = 0; j < (times - 1); j++) {
          now = tele[now - 1];
        }
        System.out.println(tele[now - 1]);
        }
    }
}



Compiler output:
Main.java:9: error: integer number too large
        if (times = 727202214173249351) {
                    ^
1 error
Language: C++

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

int main() {
  int N, K;
  cin >> N >> K;
  
  vector<int> town(N);
  for (int i=0; i<N; i++){
    cin >> town.at(i);
  }
  int x = town.at(N);
  for (int i=0; i<K; i++){
    x = town.at(x)
  }
  cout << x << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:19: error: expected ';' before '}' token
   14 |     x = town.at(x)
      |                   ^
      |                   ;
   15 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
long long n,k,cnt,p[2000001],a[2000001],mark[2000001],x,t,y,q;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin>>n>>k;
    for (int i=1;i<=n;i++) cin>>a[i];
    cnt=0;
    x=1;
    while (true)
    {
        p[cnt]=x;
        mark[x]=1;
        x=a[x];

        if (mark[x]==1) {t=x; break;}
        cnt++;
    }

    for (int i=0;i<=cnt;i++)
    if (p[i]==t) { y=i; break; }

    if (k<=y) cout<<p[y];
    else
    {

        cnt-=y;
        k-=y;
        q=k%(cnt+1)+y];
        cout<<p[q]; 
        
    }

    
}    




Compiler output:
a.cc: In function 'int main()':
a.cc:33:22: error: expected ';' before ']' token
   33 |         q=k%(cnt+1)+y];
      |                      ^
      |                      ;
Language: C++

for (int i = 0; i < N; i++) {
    cin >> math.at(i);
  }

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


int main() {
  int N,K;
  cin >> N >> K;
  int S;
  S = K%N
  
  int i=1
  int j=1
    
  while(j<=S){
    cin >> A.at(i);
    int i = A.at(i);
    j ++;
  }
  
  cout << i <<endl;
    
}

Compiler output:
a.cc:1:1: error: expected unqualified-id before 'for'
    1 | for (int i = 0; i < N; i++) {
      | ^~~
a.cc:1:17: error: 'i' does not name a type
    1 | for (int i = 0; i < N; i++) {
      |                 ^
a.cc:1:24: error: 'i' does not name a type
    1 | for (int i = 0; i < N; i++) {
      |                        ^
a.cc: In function 'int main()':
a.cc:14:10: error: expected ';' before 'int'
   14 |   S = K%N
      |          ^
      |          ;
   15 | 
   16 |   int i=1
      |   ~~~     
a.cc:25:11: error: 'i' was not declared in this scope
   25 |   cout << i <<endl;
      |           ^
Language: C

#include<stdio.h>
#include<string.h>
#include<math.h>
#include <stdlib.h>
#include<ctype.h>


//main関数
int main() {
	long long N,K;
	scanf("%lld %lld",&N,&K);
	
	long long A[N];
	for( long long i=0; i<N; i++ ) {
		scanf("%lld",&A[i]);
		A[i] = A[i] -1;
	}
	
	long long array[N];
	for( long long i=0; i<N; i++ ) {
		array[i] = -1;
	}
	
	long long memory = 0;
	long long sakoda = 1;
	long long amari = 0;
	
	for( long long i=0; i<N || i<K; i++ ) {
		if (array[memory] != -1) {
			sakoda = i - array[memory];
			amari = array[memory];
			K = K - amari;
			K = K % sakoda
			break;
		}
		array[memory] = i;
		memory = A[memory];
	}
	
	for(long long i=0;i<N;i++){
		if( array[i] - amari == K ) {
			printf("%lld",i+1);
			return 0;
		}
	}
}


Compiler output:
main.c: In function 'main':
main.c:33:39: error: expected ';' before 'break'
   33 |                         K = K % sakoda
      |                                       ^
      |                                       ;
   34 |                         break;
      |                         ~~~~~
Language: C++

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

int main() {
  int N,K;
  cin >> N >> K;
  vec<int> A(N);
  for(int i = 0;i<N;i++){ cin >> A.at(i); }
  int p = 1
  for(int m =0; m<K;m++){
    P = A.at(P-1)
  }
  cout << P+1 << endl;
  return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: 'vec' was not declared in this scope
    7 |   vec<int> A(N);
      |   ^~~
a.cc:7:7: error: expected primary-expression before 'int'
    7 |   vec<int> A(N);
      |       ^~~
a.cc:8:34: error: 'A' was not declared in this scope
    8 |   for(int i = 0;i<N;i++){ cin >> A.at(i); }
      |                                  ^
a.cc:10:3: error: expected ',' or ';' before 'for'
   10 |   for(int m =0; m<K;m++){
      |   ^~~
a.cc:10:17: error: 'm' was not declared in this scope
   10 |   for(int m =0; m<K;m++){
      |                 ^
a.cc:13:11: error: 'P' was not declared in this scope
   13 |   cout << P+1 << endl;
      |           ^
Language: C++

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

int main(){
  long long n,k;
  cin >> n >> k;
  
  int next[n];
  
  for(int i=0;i<n;i++){
    cin >> next[i];
  }
  
  map<int,int> res;
  long long j=1;
  res[0]=1;
  long long loop,ans;
  
  while(true){
    map[j]=next[res[j-1]];
    for(int i=0;i<j;i++){
      if(res[j]==res[i]){
        loop=res[j]-res[i];
        ans=res[j-(loop-(k%loop))];
        break;
      }
    }
    j++
  } 
  
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:21: error: use of 'j' before deduction of 'auto'
   20 |     map[j]=next[res[j-1]];
      |                     ^
Language: Java

import java.util.Scanner;

public class D {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int n = sc.nextInt();
		long k = sc.nextLong();

		int[] a = new int[n];
		for(int i = 0; i < n; i++) {
			a[i] = sc.nextInt();
		}

		long next = 1;
		for(int num = 0; num < k; num++) {
			next = a[(int)next-1];
		}
		System.out.println(next);
	}
}


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

#include<stdio.h>

int main()
{
  int cache[400000]={0};
  int A[400000];
  int log[400000];
  long long int N,K;
  scanf("%lld",&N);
  scanf("%lld",&K);

  for(int i=0;i<N;++i){
    scanf("%d",&A[i]);
    --A[i];
  }
  long long int now=0;
  long long int i;
  for(i=0;i<K;++i){
    log[i]=now;
    if(cache[now]==1)break;
    cache[now]=1;
    now=A[now];
  }

  int loop_start=0;
  int loop_end=i;
  
  for(i = 0; i<K;++i){
    if(log[i]==now)break;
  }

  loop_start=i;
  int loop_size=loop_end-loop_start;
  if(loop_size=0){
    printf("%d",now+1)
  }
  else if(loop_start<loop_size){
    printf("%d\n",log[K%loop_size]+1);
  }
  else{
    printf("%d\n",log[K%loop_size+loop_size]+1);
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:35:23: error: expected ';' before '}' token
   35 |     printf("%d",now+1)
      |                       ^
      |                       ;
   36 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
long long N, K, start, End, rm;
long long visit[200005] = {0}, arr[200005];
deque<long long> vec;
int main()
{
    scanf("%lld %lld", &N, &K);
    for (int i = 0; i < N; i++)
    {
        scanf("%lld", &arr[i]);
    }
    start = 0;
    while (visit[start] == 0)
    {
        vec.push_back(start + 1);
        visit[start] += 1;
        start = arr[start] - 1;
    }
    End = arr[vec[vec.size() - 1] - 1];
    // for (int i = 0; i < N; i++)
    // {
    //     printf("%lld ", visit[i]);
    // }
    // printf("\n");
    rm = 0;
    while (!vec.empty() && vec.front() != End)
    {
        vec.pop_front();
        rm++;
    }
    // for (auto p : vec)
    //     printf("%lld ", p);
    // printf("end %lld\n", End);
    printf("%lld\n", vec[(K - rm) % vec.size()]);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: reference to 'visit' is ambiguous
   14 |     while (visit[start] == 0)
      |            ^~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:80,
                 from a.cc:1:
/usr/include/c++/14/variant:1855:5: note: candidates are: 'template<class _Visitor, class ... _Variants> constexpr std::__detail::__variant::__visit_result_t<_Visitor, _Variants ...> std::visit(_Visitor&&, _Variants&& ...)'
 1855 |     visit(_Visitor&& __visitor, _Variants&&... __variants)
      |     ^~~~~
a.cc:4:11: note:                 'long long int visit [200005]'
    4 | long long visit[200005] = {0}, arr[200005];
      |           ^~~~~
a.cc:17:9: error: reference to 'visit' is ambiguous
   17 |         visit[start] += 1;
      |         ^~~~~
/usr/include/c++/14/variant:1855:5: note: candidates are: 'template<class _Visitor, class ... _Variants> constexpr std::__detail::__variant::__visit_result_t<_Visitor, _Variants ...> std::visit(_Visitor&&, _Variants&& ...)'
 1855 |     visit(_Visitor&& __visitor, _Variants&&... __variants)
      |     ^~~~~
a.cc:4:11: note:                 'long long int visit [200005]'
    4 | long long visit[200005] = {0}, arr[200005];
      |           ^~~~~
Language: C++

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

int main(){
	long long n, k;
	cin >> n >> k;
	int a[n];
	for(long long i=0;i<=n;i++){
		cin >> a[i];
	}
	cout << s[n-k%n];
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:17: error: 's' was not declared in this scope
   11 |         cout << s[n-k%n];
      |                 ^
Language: C++

/* In the name of Allah */
#include<bits/stdc++.h>
using namespace std;
const int MAXN = 1000 * 1000 + 10;
int arr[MAXN];
bool a[MAXN];
bool b[MAXN];
int x[MAXN], y[MAXN];
unsigned long long int n, k;
int main(){
cin >> n >> k;
for(int i = 1; i <= n; i++){
	cin >> arr[i];
}

int cnt = 1, sum = 0, co = 0;
while(1){
	if(a[cnt] == true){
		break;
	}	
	a[cnt] = true;
	x[co] = cnt;
	co++;
	cnt = arr[cnt];	
	sum++;
}
int cnt2 = cnt, len = 0, z = cnt, co2 = 0;
while(1){
	if(b[cnt2] == true){
		break;
	}	
	b[cnt2] = true;
	y[co2] = cnt2;
	co2++;
	cnt2 = arr[cnt2];
	len++;	
}

if(sum - len >= k){
	cout << x[k];
	return 0;
}
if(sum != len){
	int v = sum - len;
k = abs(k - v);
int mod = k % len;
cout << y[mod];
}else{
	int mod = k % sum;
	cout << x[mod];
}

return 0;
}
//7 2
//2 3 4 5 6 7 4

Compiler output:
a.cc: In function 'int main()':
a.cc:45:8: error: call of overloaded 'abs(long long unsigned int)' is ambiguous
   45 | k = abs(k - v);
      |     ~~~^~~~~~~
In file included from /usr/include/c++/14/cstdlib:79,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:42,
                 from a.cc:2:
/usr/include/stdlib.h:980:12: note: candidate: 'int abs(int)'
  980 | extern int abs (int __x) __THROW __attribute__ ((__const__)) __wur;
      |            ^~~
In file included from /usr/include/c++/14/cstdlib:81:
/usr/include/c++/14/bits/std_abs.h:137:3: note: candidate: 'constexpr __float128 std::abs(__float128)'
  137 |   abs(__float128 __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:85:3: note: candidate: 'constexpr __int128 std::abs(__int128)'
   85 |   abs(__GLIBCXX_TYPE_INT_N_0 __x) { return __x >= 0 ? __x : -__x; }
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:79:3: note: candidate: 'constexpr long double std::abs(long double)'
   79 |   abs(long double __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:75:3: note: candidate: 'constexpr float std::abs(float)'
   75 |   abs(float __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:71:3: note: candidate: 'constexpr double std::abs(double)'
   71 |   abs(double __x)
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:61:3: note: candidate: 'long long int std::abs(long long int)'
   61 |   abs(long long __x) { return __builtin_llabs (__x); }
      |   ^~~
/usr/include/c++/14/bits/std_abs.h:56:3: note: candidate: 'long int std::abs(long int)'
   56 |   abs(long __i) { return __builtin_labs(__i); }
      |   ^~~
Language: C++

#include<iostream>
#include<queue>
#include<string>
#include<cmath>
#include<cstdio>
#include<cctype>
#include<cstring>
#include<iomanip>
#include<cstdlib>
#include<ctime>
#include<set>
#include<map>
#include<utility>
#include<vector>
#include<stack>
#include<sstream>
#include<algorithm>
using namespace std;
/****************************/
#define ll long long
#define vi vector<int>
#define pii pair<int,int>
#define vpii vector<pair<int,int> >
#define qi queue<int>
#define mii map<int,int>
#define msi map<string,int>
#define vs vector<string>
#define vc vector<char>
/****************************/
#define rep(i,n) for(ll i=0;i<(n);i++)
#define rep2(i,n) for(ll i=(n)-1;i>=0;i--)
#define rep3(i,a,n) for(ll i=(a);i<(n);i++)
#define rep4(i,a,n) for(ll i=(a)-1;i>=n;i--)
#define mp make_pair
#define pb push_back
#define st first
#define nd second
#define pi 3.1415926535897932384626433832795
#define zero(n) memset(n,0,sizeof(n));
#define SZ(n) n.size()
#define sn st.nd 
ll dx[4]={0,-1,0,1};
ll dy[4]={1,0,-1,0};
/****************************/
ll n,k;
ll a[100010];
bool vis[100010];
vector<ll> ans;
ll cnt=0;
void dfs(ll x)
{
	vis[x]=true;
	if(a[x]==x)
	{
		cnt=ans.size();
		ans.clear();
		ans.pb(x);
		return;
	}
	if(!vis[a[x]])
	{
		ans.pb(x);
		dfs(a[x]);
	}
	else
	{
		ans.pb(x);
		rep(i,ll(ans.size()))
		{
			if(ans[0]!=a[x])
			{
				ans.erase(ans.begin(),ans.begin()+1);
				cnt++;
			}
			else
			{
				break;
			}
			if(i==ll(ans.size())) break;
		}
	}
}
int main()
{
	ios::sync_with_stdio(0);
	cin>>n>>k;
	rep3(i,1,n+1)
	{
		cin>>a[i];
	}
	zero(vis);
	dfs(1);
	/*rep(i,ans.size())
	{
		cout<<ans[i]<<' ';
	}
	cout<<cnt<<" ";*/
	k-=cnt;
	k%=ans.size();
	cout<<ans[k];
	return 0;
}

Compiler output:
a.cc: In function 'void dfs(long long int)':
a.cc:20:12: error: expected primary-expression before 'long'
   20 | #define ll long long
      |            ^~~~
a.cc:30:32: note: in definition of macro 'rep'
   30 | #define rep(i,n) for(ll i=0;i<(n);i++)
      |                                ^
a.cc:68:23: note: in expansion of macro 'll'
   68 |                 rep(i,ll(ans.size()))
      |                       ^~
a.cc:20:12: error: expected ')' before 'long'
   20 | #define ll long long
      |            ^~~~
a.cc:30:32: note: in definition of macro 'rep'
   30 | #define rep(i,n) for(ll i=0;i<(n);i++)
      |                                ^
a.cc:68:23: note: in expansion of macro 'll'
   68 |                 rep(i,ll(ans.size()))
      |                       ^~
a.cc:30:31: note: to match this '('
   30 | #define rep(i,n) for(ll i=0;i<(n);i++)
      |                               ^
a.cc:68:17: note: in expansion of macro 'rep'
   68 |                 rep(i,ll(ans.size()))
      |                 ^~~
a.cc:20:12: error: expected primary-expression before 'long'
   20 | #define ll long long
      |            ^~~~
a.cc:79:31: note: in expansion of macro 'll'
   79 |                         if(i==ll(ans.size())) break;
      |                               ^~
a.cc:79:31: error: expected ')' before 'long'
   79 |                         if(i==ll(ans.size())) break;
      |                           ~   ^
      |                               )
Language: C++

#include<bits/stdc++.h>
#define rep(i,N) for(int i=0;i<(N);i++)
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
using namespace std;
const long long MOD = 1e9 + 7;
const long long INF = 1e12;
const int inf = 1e9;
const int mod = 1e9+7;
typedef long long ll;
typedef pair<ll,int> P;
typedef set<int> S;
vector<ll> to(200010,0);
vector<ll> time1[100];
ll n,k;
void bfs(int i, int count){
    //cout<<count<<endl;
    if(count>n+n+10) return;
    time1[i].push_back(count);
    bfs(to[i],count+1);
}

int main(){
    cin>>n>>k;
    vector<int> v(n);
    rep(i,n){
        int x;
        cin>>x;
        x--;
        to[i]=x;
    }
    bfs(0,0);
    //cout<<"Yes"<<endl;
    /*
    rep(i,n){
        for(auto u : time1[i]){
            cout<<u<<" ";
        }
        cout<<endl;
    }*/
    for(int i=0;i<n;i++){
        bool ok = 0;a
        int now = 1;
        while(1){
            //cout<<i<<"check"<<endl;
            //cout<<time1[i].size()<<endl;
            if(time1[i].size()==0) break;
            if(now+1>time1[i].size()-1){
                //cout<<i<<" is  out"<<endl;
                break;
            }

            if(time1[i][now]-time1[i][now-1]==time1[i][now+1]-time1[i][now]){
                ok = 1;
                break;
            }
            now++;
        }
        //cout<<"end"<<endl;
        if(ok){
            ll loop = time1[i][now]-time1[i][now-1];
            if((k-time1[i][now-1])%loop==0){
                cout<<i+1<<endl;
                //cout<<"answer"<<endl;
                return 0;
            }
        }
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:41:21: error: 'a' was not declared in this scope
   41 |         bool ok = 0;a
      |                     ^
a.cc:47:16: error: 'now' was not declared in this scope; did you mean 'pow'?
   47 |             if(now+1>time1[i].size()-1){
      |                ^~~
      |                pow
a.cc:52:25: error: 'now' was not declared in this scope; did you mean 'pow'?
   52 |             if(time1[i][now]-time1[i][now-1]==time1[i][now+1]-time1[i][now]){
      |                         ^~~
      |                         pow
a.cc:56:13: error: 'now' was not declared in this scope; did you mean 'pow'?
   56 |             now++;
      |             ^~~
      |             pow
a.cc:60:32: error: 'now' was not declared in this scope; did you mean 'pow'?
   60 |             ll loop = time1[i][now]-time1[i][now-1];
      |                                ^~~
      |                                pow
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){long long n,k;cin>>n>>k;
    int a[n];b[n];for(int i=0;i<n;i++)cin>>a[i];
           int q=1;for(int i=0;i<n;i++)
{q=a[q];if(q=1||b[q]){k-=i+1;k%=(i+1-b[q]);}else b[q]=i+1;}
while(k>0){q=a[q];k--;}cout<<q<<endl;}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:14: error: 'b' was not declared in this scope
    4 |     int a[n];b[n];for(int i=0;i<n;i++)cin>>a[i];
      |              ^
Language: C++

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

int main() {
  int N;
  long long K;
  cin >>N>>K;
  vector<int> A(N);
  for(int i=0; i<N; i++)
    cin>>A.at(i);
  
  vector<int> tel(N);
  tel.at(0)=1;
  for(int i=1; i<N; i++){
    tel.at(i)=A.at(tel.at(i-1));
  }
  
  set<int> teleport;
  teleport.insert(1);
  for(int i=1; i<N; i++){
    teleport.insert(A.at(teleport.at(i-1)));
  }
  int x;
  x = teleport.size();
  int y;
  y = K%x;
  
  int ans;
  ans = tel.at(y);
  cout<<ans<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:35: error: 'class std::set<int>' has no member named 'at'
   21 |     teleport.insert(A.at(teleport.at(i-1)));
      |                                   ^~
Language: C

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

int main()
{
	int n;
	long long k;
	cin>>n>>k;
	int dest[n+1];
	for(int i=1;i<=n;i++)
	{
		scanf("%d",&dest[i]);
	}

	// for(int i=1;i<=n;i++)
	// {
	// 	printf("%d",dest[1]);
	// }

	int present=1;
	int passby[n+1];
	int circle;
	for(int i=1;i<=n;i++)
	{
		passby[i]=present;
		present=dest[present];
		// printf("\n%d\n",present);
		for(int j=1;j<i;j++)
		{
			if(present==passby[j])
			{
				// printf("%d %d %d\n",passby[j],i,j);
				circle=i-j+1;
				// printf("%d\n",circle);
				long long remain;
				remain=k-i;
				printf("%d",passby[j+(remain % circle)]);
				return 0;
			}
		}
	}
}


Compiler output:
main.c:2:9: fatal error: bits/stdc++.h: No such file or directory
    2 | #include<bits/stdc++.h>
      |         ^~~~~~~~~~~~~~~
compilation terminated.
Language: C

#include <stdio.h>

typedef long long ll;

int main(void) {
  int n;
  ll k;
  scanf("%d %lld", &n, &k);
  int a[200001] = 0;
  for(int i = 1;i <= n;i++) {
    scanf("%d", a + i);
  }
  int current = 1;
  for(ll i = 0;i < k;i++) {
    current = a[current];
  }
  printf("%d\n", current);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:9:19: error: invalid initializer
    9 |   int a[200001] = 0;
      |                   ^
Language: C++

#include <bits/stdc++.h>
#define ll long long
using namespace std;
 
int main() {
	ios::sync_with_stdio(0);
	cin.tie(0);
	ll n, k;
	cin >> n >> k;
	
	ll a[n+1], p = 1, ind = 0, m;
	bool vis[n+1];
	
	vector<ll> pe;
	for (ll i = 1; i <= n; i++) {
		cin >> a[i];
		vis[i] = 0;
	}
	while (vis[p] == 0) {
		pe.PB(p);
		vis[p] = 1;
		p = a[p];
	}
	while (pe[ind] != p) ind++;
	if (k < pe.size()) cout << pe[k];
	else {
		m = pe.size() - ind;
		ll q = k%m;
		cout << pe[q + ind*(p!=ind)];
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:20: error: 'class std::vector<long long int>' has no member named 'PB'
   20 |                 pe.PB(p);
      |                    ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n); for(ll i = 1;i<=n;++i)
using ll = long long;
using P = pair<int,int>;

int main(){
  ll n,k;
  cin >> n >> k;
  vector<ll> A(650000);
  vector<ll> b(650000);
  rep(i,n){
    cin >> A[i];
    b[i] = 0;
  }
  vector<ll> ans(650000);
  ll s,t;
  rep(i,3*n){
    if(i == 1){
      ans[i] = 1;
      b[ans[i]] += 1;
    }
    else{
      ans[i] = A[ans[i-1]];
      b[ans[i]] += 1;
      if(b[ans[i]] == 1){
        s = i;
      }
      if(b[ans[i]] == 2){
        t = i;
      }
    }
  }
  ll e;
  e = t-s;
  k += 1;
  if(k <= s){
    cout << ans[k] << endl;
  }
  ll g;
  else{
    k -= s;
    g = k%e;
    cout << ans[g + s] << endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:3: error: 'else' without a previous 'if'
   41 |   else{
      |   ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n); for(ll i = 1;i<=n;++i)
using ll = long long;
using P = pair<int,int>;

int main(){
  ll n,k;
  cin >> n >> k;
  vector<ll> A(650000);
  vector<ll> b(650000);
  rep(i,n){
    cin >> A[i];
    b[i] = 0;
  }
  vector<ll> ans(650000);
  ll s,t;
  rep(i,3*n){
    if(i == 1){
      ans[i] = 1;
      b[ans[i]] += 1;
    }
    else{
      ans[i] = A[ans[i-1]];
      b[ans[i]] += 1;
      if(b[ans[i]] == 1){
        s = i;
      }
      if(b[ans[i]] == 2){
        t = i;
      }
    }
  }
  ll e;
  e = t-s;
  k += 1;
  if(k <= s){
    cout << ans[k] << endl;
  }
  ll g,
  else{
    k -= s;
    g = k%e;
    cout << ans[g + s] << endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:3: error: expected unqualified-id before 'else'
   41 |   else{
      |   ^~~~