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

#include <iostream>
#include <string>
#include <math.h>
using namespace std;

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

	int i =0;
	for(; i <= str.length(); i++){
		if(str[i] != '1')
			break;
	}
	if(k-1 < i){
		cout << '1';
	else{
		cout << str[i];
	}

	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:13: error: no match for 'operator-' (operand types are 'std::string' {aka 'std::__cxx11::basic_string<char>'} and 'int')
   17 |         if(k-1 < i){
      |            ~^~
      |            | |
      |            | int
      |            std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/string:48,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_iterator.h:618:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__y.base() - __x.base())) std::operator-(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  618 |     operator-(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:618:5: note:   template argument deduction/substitution failed:
a.cc:17:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::reverse_iterator<_Iterator>'
   17 |         if(k-1 < i){
      |              ^
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr decltype ((__x.base() - __y.base())) std::operator-(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1790 |     operator-(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1790:5: note:   template argument deduction/substitution failed:
a.cc:17:14: note:   'std::string' {aka 'std::__cxx11::basic_string<char>'} is not derived from 'const std::move_iterator<_IteratorL>'
   17 |         if(k-1 < i){
      |              ^
a.cc:19:9: error: expected '}' before 'else'
   19 |         else{
      |         ^~~~
a.cc:17:20: note: to match this '{'
   17 |         if(k-1 < i){
      |                    ^
Language: C++

#include<iostream>
#include<climits>
#include<math.h>
#include<vector>
#include<algorithm>
#include<cstdio>
#include <string>
#include <complex>
#include <functional>
using namespace std;
typedef pair<int,int> P;
double dat[100][100];
int dp[6][1010];//動的計画法
int prime[10000001];
char str[1010][1010];
vector<pair<int,int> > pc[100001];
int ABS(int a){return max(a,-a);}
int main(){
  string s;
  long long k;
  char ans;
  cin>>s;
  cin>>k;
      for(int i=0;i<k;i++){
            if(s[i]!='1'){
                ans=s[i];
                cout<<ans<<endl;
                return;
            }
        }
  cout<<1<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:17: error: return-statement with no value, in function returning 'int' [-fpermissive]
   28 |                 return;
      |                 ^~~~~~
Language: C++

#include <bits/stdc++.h>
#include <math.h>
 
using namespace std;
 
int main()
{
  
  string s;
  long long k;
  cin >> s >> k;
  long long num = stoi(s);
  long long tmp;
  int count = 0;
  long long per;
  for(int i = s.size(); i >= 0; i--){
    for(int j = 0; j < i-1; j++) per *= 10
    tmp = num / per;
    if(tmp % 10 != 1) break;
    else count++;
  }
  if(k <= count) cout << 1 << endl;
  else cout << tmp % 10 << endl; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:43: error: expected ';' before 'tmp'
   17 |     for(int j = 0; j < i-1; j++) per *= 10
      |                                           ^
      |                                           ;
   18 |     tmp = num / per;
      |     ~~~
Language: C++

s=gets
k=gets.to_i
arr=[]
s.chars{|ch| arr<<ch.to_i}
if (k<=arr.index{|v| v!=1}) 
  puts 1
else
  puts arr[arr.index{|v| v!=1}]
end



Compiler output:
a.cc:1:1: error: 's' does not name a type
    1 | s=gets
      | ^
a.cc:5:1: error: expected unqualified-id before 'if'
    5 | if (k<=arr.index{|v| v!=1})
      | ^~
a.cc:5:27: error: expected unqualified-id before ')' token
    5 | if (k<=arr.index{|v| v!=1})
      |                           ^
a.cc:8:31: error: expected unqualified-id before ']' token
    8 |   puts arr[arr.index{|v| v!=1}]
      |                               ^
Language: C

#include <stdio.h>
int main(void) {
	long long a, b, c, k, h;
	int i, n, j;
	scanf("%lld", &a);
	scanf("%lld", &k);
	n = 0;
	b = a;
	
	else {
		for (i = 1; a >= 1; i++) {
			a = a / 10;
			n++;
		}

		long long  p[100];
		p[n] = b % 10;
		for (i = 1; i <= n - 1; i++) {
			c = 1;
			for (j = 1; j <= i; j++) {
				c = c * 10;
			}
			c = c * 10;
			p[n - i] = b % c - p[n - i + 1];
			c = c / 10;
			p[n - i] = p[n - i] / c;
		}
		h = 0;
		for (i = 1; p[i] == 1; i++) {
			h++;
		}
		if (h == n) printf("%d", 1);
else if (k <= h) printf("%d", 1);
	else printf("%lld", p[h + 1]);
	
	return 0;

}

Compiler output:
main.c: In function 'main':
main.c:10:9: error: 'else' without a previous 'if'
   10 |         else {
      |         ^~~~
main.c:38:1: error: expected declaration or statement at end of input
   38 | }
      | ^
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main() {
    char s[101];
    long int k;
    scanf("%s",s);
    scanf("%ld",k);
    for(int i = 0;;i++) {
        if(k < pow(atoi(&s[i]),5000000000000000) {
            printf("%c",s[i]);
            return 0;
        }
        else k -= pow(atoi(&s[i]),5000000000000000);
    }
}

Compiler output:
main.c: In function 'main':
main.c:10:49: error: expected ')' before '{' token
   10 |         if(k < pow(atoi(&s[i]),5000000000000000) {
      |           ~                                     ^~
      |                                                 )
main.c:15:5: error: expected expression before '}' token
   15 |     }
      |     ^
Language: C++

#include <bits/stdc++.h>
 
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define CLR(a) memset((a), 0 ,sizeof(a))
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vi> vii;
typedef vector<string> vs;
typedef pair<int, int> pi;
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MKP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
 
const int INF = 999999;
const double EPS = 1e-10;
const double PI = acos(-1.0);
const ll MOD = 1000000007;

char S[128];
ll K;
int main(){
    cin >> S >> K;
    if(S[0]=='1'){
        bool f = false;
        REP(i,strlen(S)){

            if(S[i] != '1'){
                    cout<< S[i] << endl;
                    break;
            }
            }else if (i == K - 1){
                cout << '1' << endl;
                break;
            }else{
            }
        }
    }else{
        cout << S[0] << endl;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:40:14: error: expected '}' before 'else'
   40 |             }else if (i == K - 1){
      |              ^~~~
a.cc:32:18: note: to match this '{'
   32 |     if(S[0]=='1'){
      |                  ^
a.cc:40:23: error: 'i' was not declared in this scope; did you mean 'vi'?
   40 |             }else if (i == K - 1){
      |                       ^
      |                       vi
a.cc:42:17: error: break statement not within loop or switch
   42 |                 break;
      |                 ^~~~~
a.cc: At global scope:
a.cc:46:5: error: expected declaration before '}' token
   46 |     }else{
      |     ^
a.cc:46:6: error: expected unqualified-id before 'else'
   46 |     }else{
      |      ^~~~
a.cc:49:5: error: expected unqualified-id before 'return'
   49 |     return 0;
      |     ^~~~~~
a.cc:50:1: error: expected declaration before '}' token
   50 | }
      | ^
Language: C

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main() {
    char s[101];
    long int k;
    scanf("%s",s);
    scanf("%d",k);
    for(int i = 0;;i++) {
        if(k < pow(atoi(s[i]),5000000000000000) {
            printf("%c",s[i]);
            return 0;
        }
        else k -= pow(atoi(s[i]),5000000000000000);
    }
}

Compiler output:
main.c: In function 'main':
main.c:10:26: error: passing argument 1 of 'atoi' makes pointer from integer without a cast [-Wint-conversion]
   10 |         if(k < pow(atoi(s[i]),5000000000000000) {
      |                         ~^~~
      |                          |
      |                          char
In file included from main.c:2:
/usr/include/stdlib.h:105:30: note: expected 'const char *' but argument is of type 'char'
  105 | extern int atoi (const char *__nptr)
      |                  ~~~~~~~~~~~~^~~~~~
main.c:10:48: error: expected ')' before '{' token
   10 |         if(k < pow(atoi(s[i]),5000000000000000) {
      |           ~                                    ^~
      |                                                )
main.c:15:5: error: expected expression before '}' token
   15 |     }
      |     ^
Language: C++

#include<stdio.h>

int main(void) {
	int char s[110];
	scanf("%s", s);
	printf("%s\n", s[1]);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: two or more data types in declaration of 's'
    4 |         int char s[110];
      |         ^~~
a.cc:5:21: error: 's' was not declared in this scope
    5 |         scanf("%s", s);
      |                     ^
Language: C++

#include <iostream>
#include <cmath>
using namespace std;
    
    int main(){
        
        int t;
        unsigned long long k;
        cin>>t;
        cin>>k;
        int str[100];
        int i=0;
        while(t>0){
            str[i]=t%10;
            t=t/10;
            i++;
        }
       
        int yo=i-1;//要素数
        
        for(int i=yo;i>=0;i--){
            
            if(str[i]==1){
                if(k==1){
                    cout<<1;
                    return 0;
                }else{
                    k=k-1;
                }
            }else{
                if(pow(str[i],5*pow(10,15))>=k){
                    cout<<str[i];
                    return 0;
                }else{
                    k=k-(pow(str[i],5*pow(10,15));
                }
            }
            
        }
        
        
        return 0;
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:35:50: error: expected ')' before ';' token
   35 |                     k=k-(pow(str[i],5*pow(10,15));
      |                         ~                        ^
      |                                                  )
Language: C++

#include<stdio.h>

int main(void) {
	int long char s[110];
	scanf("%s", s);
	printf("%s\n", s[1]);
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:9: error: two or more data types in declaration of 's'
    4 |         int long char s[110];
      |         ^~~
a.cc:5:21: error: 's' was not declared in this scope
    5 |         scanf("%s", s);
      |                     ^
Language: Java


import java.util.Scanner;

public class Main {

    static Scanner sc = new Scanner(System.in);


    public static void main(String[] args) {
        long gosencho = (long) (Math.pow(10, 12) * 5);

        String s = sc.next();
        long k = sc.nextLong();
        int index = Integer.parseInt(String.valueOf(s.charAt(0)));

        if (index == 1 && k == 1) {
            System.out.println(1);
            return;
        }

        if (index == 1 && k > 1 && k < Math.pow(10, 12)) {
            System.out.println(s.charAt(1));
            return;
        }
        int i = (int) (k / Math.pow(10, 12));
        System.out.println(s.charAt(i);

    }
}


Compiler output:
Main.java:26: error: ')' or ',' expected
        System.out.println(s.charAt(i);
                                      ^
1 error
Language: C++

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

int main(){
  string S;
  unsigned long long int K,i,end=0,start;
  cin >> S >> K;
  for(i=0;i<S.length();i++){
    if(int(S[i]>1){
      cout << S[i] << endl;
      break;
    }else {
      cout << 1 << endl;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:19: error: expected ')' before '{' token
    9 |     if(int(S[i]>1){
      |       ~           ^
      |                   )
a.cc:15:3: error: expected primary-expression before '}' token
   15 |   }
      |   ^
Language: C++

#include<iostream>
#include<algorithm>
#include<string>
using namespace std;
int main() {
	string s; cin >> s;
	unsigned long long k; cin >> k;
	k = min(k, s.size());
	for (int i = 0; i < k - 1; i++) {
		if (s[i] != '1') {
			cout << s[i] << endl;
			return 0;
		}
	}
	cout << s[k] << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:16: error: no matching function for call to 'min(long long unsigned int&, std::__cxx11::basic_string<char>::size_type)'
    8 |         k = min(k, s.size());
      |             ~~~^~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:8:16: note:   deduced conflicting types for parameter 'const _Tp' ('long long unsigned int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
    8 |         k = min(k, s.size());
      |             ~~~^~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61,
                 from a.cc:2:
/usr/include/c++/14/bits/stl_algo.h:5686:5: note: candidate: 'template<class _Tp> constexpr _Tp std::min(initializer_list<_Tp>)'
 5686 |     min(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5686:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5696:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::min(initializer_list<_Tp>, _Compare)'
 5696 |     min(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5696:5: note:   template argument deduction/substitution failed:
a.cc:8:16: note:   mismatched types 'std::initializer_list<_Tp>' and 'long long unsigned int'
    8 |         k = min(k, s.size());
      |             ~~~^~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
 
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n) FOR(i,0,n)
#define CLR(a) memset((a), 0 ,sizeof(a))
using namespace std;
typedef unsigned long long ull;
typedef long long ll;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef vector<vi> vii;
typedef vector<string> vs;
typedef pair<int, int> pi;
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MKP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
 
const int INF = 999999;
const double EPS = 1e-10;
const double PI = acos(-1.0);
const ll MOD = 1000000007;

char S[128];
ll K;
int main(){
    cin >> S >> K;
    if(S[0]=='1'){
        REP(i,101)){
            if(S[i] == NULL){
                cout << '1' << endl;
            }
            else if(i == K - 1){
                cout<< S[i] << endl;
            }else if(S[i] != '1'){
                cout << S[i] << endl;
            }else{
            }
        }
    }else{
        cout << S[0] << endl;
    }
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:33:19: error: expected primary-expression before ')' token
   33 |         REP(i,101)){
      |                   ^
Language: C++

#include<iostream>
#include<cstring>
using namespace std;
char s[105];
long long k,top=0;
int main()
{
	gets(s);
	cin>>k;
	int len=strlen(s);
	for(int i=0;i<len;++i)
		if(s[i]!='1')
		{
			top=i;break;
		}
	if(k<top)cout<<1<<endl;
	else cout<<s[top]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    8 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
	string s;
	cin>>s;
	int l=s.length();
	if(s[0]!=1)
	   cout<<s[0]<<endl;
	else
	{
		int i=0;
		int count=0;
		while(s[i]==1)
		{
			count++;
			i++;
		}
		if(k<count)
		   count<<"1"<<endl;
		else
		   cout<<s[i]<<endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:20: error: 'k' was not declared in this scope
   19 |                 if(k<count)
      |                    ^
a.cc:20:25: error: invalid operands of types 'int' and 'const char [2]' to binary 'operator<<'
   20 |                    count<<"1"<<endl;
      |                    ~~~~~^~~~~
      |                    |      |
      |                    int    const char [2]
Language: C++

#include <iostream>
#include <boost/multiprecision/gmp.hpp>
using namespace std;
int main(void){
    // Your code here!
    mpz_int S,K,i,j,k,count;
    cin >> S >> K;
    mpz_int A=1;
    count=0;
    k=0;
    for(i=0;i<100;i++){
        if(A-1<S){
            j=(S/A)%10;
            if(j!=1){
                k=j;
                count=0;
            }else{
                count++;
            }
            A*=10;
        }
    }
    if(K<count+1){
        cout << 1 << endl;
    }else{
        cout << k << endl;
    }
}


Compiler output:
a.cc:2:10: fatal error: boost/multiprecision/gmp.hpp: No such file or directory
    2 | #include <boost/multiprecision/gmp.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include<bits/stdc++.h>
using namespace std;
char s[105];
long long k,top=0;
int main()
{
	gets(s);
	cin>>k;
	int len=strlen(s);
	for(int i=0;i<len;++i)
		if(s[i]!='1')
		{
			top=i;break;
		}
	if(k<top)cout<<1<<endl;
	else cout<<s[top]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    7 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

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

long long a[120][2],sum,k;

int main()
{
    char s[120];
    cin>>s>>k;
    int f=1
    for(int i=0; s[i]!='\0'; i++)
        if(s[i]!='1')
        {
            if(k<=i)cout<<1;
            else
                cout<<s[i];
            f=0;
            break;
        }
        if(f)cout<<1<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:5: error: expected ',' or ';' before 'for'
   11 |     for(int i=0; s[i]!='\0'; i++)
      |     ^~~
a.cc:11:20: error: 'i' was not declared in this scope
   11 |     for(int i=0; s[i]!='\0'; i++)
      |                    ^
Language: C++

include <iostream>
using namespace std;

int main(){
  string s;
  int k;
  int one_count = 0;
  cin >> s;
  cin >> k;
  char output = s.at(0);
  for(int i = 0;i < s.size();i++){
    if(s.at(i) == '1')
      one_count++;
    else
      break;
  }

  if(output == '1')
    output = '2';

  if(k <= one_count)
    output = '1';
  cout << output << endl;
  return 0;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include <iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:5:3: error: 'string' was not declared in this scope
    5 |   string s;
      |   ^~~~~~
a.cc:8:3: error: 'cin' was not declared in this scope
    8 |   cin >> s;
      |   ^~~
a.cc:8:10: error: 's' was not declared in this scope
    8 |   cin >> s;
      |          ^
a.cc:23:3: error: 'cout' was not declared in this scope
   23 |   cout << output << endl;
      |   ^~~~
a.cc:23:21: error: 'endl' was not declared in this scope
   23 |   cout << output << endl;
      |                     ^~~~
Language: C

#include<stdio.h>

int main()
{
	int S[100], K;
	int i;
	int A;

	scanf("%d", &S);
	for (i = 0;i++;i < 100)
	{
		if (S[i] == 1)
		{
			S[i] = 1;
		}
		if (S[i] == 2)
		{
			S[i] = S[i] * 10 + 2;
		}
		if (S[i] == 3)
		{
			S[i] = S[i] * 100 + 33;
		}
		if (S[i] == 4)
		{
			S[i] = S[i] * 1000 + 444;
		}
		if (S[i] == 5)
		{
			S[i] = S[i] * 10000 + 5555;
		}
		if (S[i] == 6)
		{
			S[i] = S[i] * 100000 + 66666;
		}
		if (S[i] == 7)
		{
			S[i] = S[i] * 1000000 + 777777;
		}
		if (S[i] == 8)
		{
			S[i] = S[i] * 10000000 + 8888888;
		}
		if (S[i] == 9)
		{
			S[i] = S[i] * 100000000 + 99999999;
		}
	}

	scanf("%d", &K);
	if (K > 0 && K < 1000000000000000000)
	{
		A = S[K];
		printf("%d", A);
	}
	else
	{
		printf("error\n");
	}

	return 0;
}#include<stdio.h>

int main()
{
	int S[100], K;
	int i;
	int A;

	scanf("%d", &S);
	for (i = 0;i++;i < 100)
	{
		if (S[i] == 1)
		{
			S[i] = 1;
		}
		if (S[i] == 2)
		{
			S[i] = S[i] * 10 + 2;
		}
		if (S[i] == 3)
		{
			S[i] = S[i] * 100 + 33;
		}
		if (S[i] == 4)
		{
			S[i] = S[i] * 1000 + 444;
		}
		if (S[i] == 5)
		{
			S[i] = S[i] * 10000 + 5555;
		}
		if (S[i] == 6)
		{
			S[i] = S[i] * 100000 + 66666;
		}
		if (S[i] == 7)
		{
			S[i] = S[i] * 1000000 + 777777;
		}
		if (S[i] == 8)
		{
			S[i] = S[i] * 10000000 + 8888888;
		}
		if (S[i] == 9)
		{
			S[i] = S[i] * 100000000 + 99999999;
		}
	}

	scanf("%d", &K);
	if (K > 0 && K < 1000000000000000000)
	{
		A = S[K];
		printf("%d", A);
	}
	else
	{
		printf("error\n");
	}

	return 0;
}

Compiler output:
main.c:62:2: error: stray '#' in program
   62 | }#include<stdio.h>
      |  ^
main.c:62:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
   62 | }#include<stdio.h>
      |          ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int K,s, t;
  char a = '1';
  string S;
  cin >> S >> K;
  for (int i = 0; i < S.size(); i++) {
    if(S[i] != '1' ){
      a = S[i];
      s = i;
      break;
    }
  }
  else if(K < s){
    a = '1';
  }
 else if(K > 50000000000000 + s && a == 2) {    
    for (int j = s; j < S.size(); j++) {
    if(S[j] != '1' ){
      a = S[j];
      t = j;
      break;
    }
  }
  }
   else if(K - (50000000000000 + s) < t ) {
     a = '1';
   } 
    cout << a << endl;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:16:3: error: 'else' without a previous 'if'
   16 |   else if(K < s){
      |   ^~~~
Language: C

#include<stdio.h>
#include<math.h>
int main(){
  char s[110],a[2];
  long long int k;
  double l;
  int i=0;
  scanf("%s%lld",s,&k);
  while(s[i]=='1'&&i<k-1){
    i++;
  }
  l = log10(s[i]-'0');
  if(k>5000000000000000*l){
    i++;
    while(s[i]=='1'){
      i++;
    }
    printf("%c\n",s[i]);
  }
  else
    printf("%c\n",s[i]);

  return 0;


Compiler output:
main.c: In function 'main':
main.c:23:3: error: expected declaration or statement at end of input
   23 |   return 0;
      |   ^~~~~~
Language: C++

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

int main(){
    unsigned long long k;
    string s;
    cin >> s >> k;
    char ans;
    
    unsigned long long i = 0;

    while(s[i] == '1'){
        i++;
    }

    if(k == 1){
        ans = s[0];
    }
    else if(k < i){
        ans = '1';
    }
    else(k < 10e17){
        /*if(s[0] == 1){
            ans = s[i];
        }
        else{
            ans = s[0];
        }*/
        ans = s[i];
    }
    else{
        ans = s[i+1];
    }

    cout << ans << endl;
    return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:20: error: expected ';' before '{' token
   24 |     else(k < 10e17){
      |                    ^
      |                    ;
a.cc:33:5: error: 'else' without a previous 'if'
   33 |     else{
      |     ^~~~
Language: Java

import java.util.Scanner;
public class Garden {

    
    	
	public static void Main(String[] args) {
		// TODO Auto-generated method stub
		Scanner sc = new Scanner(System.in);
		String s=sc.nextLine();
		long K = sc.nextLong();
		double days  = 5*Math.pow(10, 15);
		
		for(int i=0;i<s.length();i++) {

			int n = Integer.parseInt(s.charAt(i)+"");
			double m = Math.pow(n, days);
			if (K<=m) 
			{System.out.println(n);
				break;}

		}
		

	}

}


Compiler output:
Main.java:2: error: class Garden is public, should be declared in a file named Garden.java
public class Garden {
       ^
1 error
Language: C

#include<stdio.h>
int main(void)
{
    char s[101]; 
    unsigned long k;
    scanf("%s",&s);
    scanf("%u,&k);
    int len=0;
    int i;
    char ans[2]="1";
    while(s[len++])
    int c=len<k?k:len;
    for(i=0;i<c;i++)
    {
        if(s[i]!='1')
            {ans[0]=s[i];  break;}
    }
    printf("%s",ans);
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:11: warning: missing terminating " character
    7 |     scanf("%u,&k);
      |           ^
main.c:7:11: error: missing terminating " character
    7 |     scanf("%u,&k);
      |           ^~~~~~~~
main.c:8:5: error: expected expression before 'int'
    8 |     int len=0;
      |     ^~~
main.c:19:10: error: expected ';' before '}' token
   19 | return 0;
      |          ^
      |          ;
   20 | }
      | ~
Language: C++

#include <cstdio>
#include <cstring>
#include <cmath>
#include <cstdlib>
#include <iostream>
#include <bitset>
#include <deque>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <vector>
#include <algorithm>
#include <iterator>
#include <string>
using namespace std;
int main(){
    int N,result;
    cin >> N;
    if(N==1){
cout << 1 << endl; }
else if {
cout << N << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:9: error: expected '(' before '{' token
   23 | else if {
      |         ^
      |         (
a.cc:25:2: error: expected '}' at end of input
   25 | }
      |  ^
a.cc:18:11: note: to match this '{'
   18 | int main(){
      |           ^
Language: C++

#include <iostream>
#include <math.h>
using namespace std;

int main() {
  
  char a[102];
  char k;
  for(int i=0; i!=102; i++){
  	cin >> a[i];
  	if(a[i] != '1' && a[i] != '2' && a[i] != '3'){
  		if(a[i] != '4' && a[i] != '5' && a[i] != '6'){
  			if(a[i] != '7' && a[i] != '8' && a[i] != '9'){
  				k = a[i-1];
  				break;
  			}
  		}
  	}
  }

  int l = k - '0';
  int ans;

  for(int i=0; i!=100; i++){
  	if(a[i] != '1'){
  		ans = a[i] - '0';
  		cout << ans << '\n';
  		return 0;
  	}else{
                if(l == 1){
                      break;
                }
  }

  cout << 1 << '\n';

  return 0;
}





Compiler output:
a.cc: In function 'int main()':
a.cc:38:2: error: expected '}' at end of input
   38 | }
      |  ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: Java

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    String[] initial = sc.nextLine().split("");
    long K = sc.nextLong();
    long index = 0;
    String answer = "1";
    for (String num: initial) {
      if (num.equals("1") && index < K) {
        index++; 
      } else {
        answer = num;
        break;
      }
    }  
    System.out.println(answer);
  }
}

Compiler output:
Main.java:3: error: cannot find symbol
    Scanner sc = new Scanner(System.in);
    ^
  symbol:   class Scanner
  location: class Main
Main.java:3: error: cannot find symbol
    Scanner sc = new Scanner(System.in);
                     ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  string s;cin>>s;
  for(int i=0;i<k-1;i++)
    if(s[i]!='1'){
	  cout<<s[i]<<endl;
      return 0;
    }
  cout<<s[k]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:17: error: 'k' was not declared in this scope
    5 |   for(int i=0;i<k-1;i++)
      |                 ^
a.cc:10:11: error: 'k' was not declared in this scope
   10 |   cout<<s[k]<<endl;
      |           ^
Language: C++

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

using namespace std;
int main() {

	string S;
	long long K;
	cin >> S >> K;

	long long x = 5000000000000000;
	unsigned long long keta = 0;

	for( char c : S)
	{
		long long a = c - '0';

		if (a == 1)
		{
			keta++;
		}
		else
		{
			keta += pow(a,x);
		}

		if (keta >= K)
		{
			cout << c - '0' << endl;
			break;
		}
	}

}


Compiler output:
a.cc: In function 'int main()':
a.cc:25:33: error: 'pow' was not declared in this scope
   25 |                         keta += pow(a,x);
      |                                 ^~~
Language: C++

#include<cstdio>
#include<iostream>
#include<algorithm>
using namespace std;
int main()
{
    char s[150];
    gets(s);
    long long k;
    cin>>k;
    long long i;
    for(i=0;s[i]=='1';i++);
    if(k<=i)
        cout<<"1"<<endl;
    else
        cout<<s[i]<<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
    8 |     gets(s);
      |     ^~~~
      |     getw
Language: C++

#include<iostream>
#include<vector>
using namespace std;
int main(){
	char s[102]
	int k;
	cin<<s<<k;
	for(int i=0;i<s.size();i++){
		if(s[i]=='1'){
			k--;
		}
		if(k==0||i!=0){
			cout<<s[i];
		}
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: expected initializer before 'int'
    6 |         int k;
      |         ^~~
a.cc:7:14: error: 's' was not declared in this scope
    7 |         cin<<s<<k;
      |              ^
a.cc:7:17: error: 'k' was not declared in this scope
    7 |         cin<<s<<k;
      |                 ^
Language: C++

#include <iostream>
#include <algorithm>
#include <vector>
#include <stack>
#include <queue>
#include <list>
#include <stdlib.h>
#include <string.h>
#include<string>
#include <boost/multiprecision/cpp_int.hpp>

namespace mp = boost::multiprecision;
#define ll long long

mp::cpp_int test_pow4(mp::cpp_int _x, mp::cpp_int _n)
{
	mp::cpp_int ret = 1;
	while(0 < _n)
	{
		if((_n % 2) == 0)
		{
			_x *= _x;
			_n >>= 1;
		}
		else
		{
			ret *= _x;
			--_n;
		}
	}
	return ret;
}

int main(){

    string s; std::cin >> s;
    mp::cpp_int k,f=5000000000000000;
    std::cin >> k;
    int x = 0;
    for(int i=0;i<s.size();i++){
        char a = s[i];
        //cout << atoi(&a) << endl;
        mp::cpp_int A = atoi(&a);
        mp::cpp_int y = test_pow4(A,f);
        //cout << y << endl;
        k = k-y;
        if(k <= 0){
            x = i;
            break;
        }
    }
    std::cout << s[x] << std::endl;


    return 0;
}

Compiler output:
a.cc:10:10: fatal error: boost/multiprecision/cpp_int.hpp: No such file or directory
   10 | #include <boost/multiprecision/cpp_int.hpp>
      |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <algorithm>
using namespace std;
int main(int argc, char *argv[])
{
	char a[1000];
	cin>>a;
	long long n;
	cin>>n;
	int i;
	for(i=0;i<strlen(a);i++)
	{
		if(a[i]!='1')
		{
			break;
		}
	}
	if(i>n-1)
	{
		cout<<1;
	}
	else
	{
		cout<<a[i];
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, char**)':
a.cc:11:19: error: 'strlen' was not declared in this scope
   11 |         for(i=0;i<strlen(a);i++)
      |                   ^~~~~~
a.cc:3:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    2 | #include <algorithm>
  +++ |+#include <cstring>
    3 | using namespace std;
Language: C++

#include<iostream>
using namespace std;
int main(){
  string s;
  int k,i=1;
  char out;
  cin >> s >> k;
  if(s[0] != 1){
    out = s[0];
  }else{
    while(s[i] == 1){
      i++;
    }
    if(k<i){
      out = '1';
    }else{
      out = s[i];
    }
    cout << out << endl;
    return 0;
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:21:4: error: expected '}' at end of input
   21 |   }
      |    ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C

#include<stdio.h>
long long int k;
int x;
char s[200];

int main()
{


    scanf("%s %lld",&s,&k);
    
    
    if(s[0]=='1'){
        for(x=1;s[x]!=0;x++){
            if(s[x]!='1'){
                if(x>k-1){
                    printf("1\n")
                }
                printf("%c\n",s[x]);
                return 0;
            }
        }
    }
    printf("%c\n",s[0]);


    return 0;
}


Compiler output:
main.c: In function 'main':
main.c:17:34: error: expected ';' before '}' token
   17 |                     printf("1\n")
      |                                  ^
      |                                  ;
   18 |                 }
      |                 ~
Language: C

#include <stdio.h>
int main(void){
  long long a,b,c,k,h;
  int i,n,j;
  scanf("%lld",&a);
  scanf("%lld",&k);
  n=0;
  a=b;
  for(i=1;a<=1;i++){
    a=a/10;
    n++;}
  int p[100];
  p[n]=b%10;
  for(i=1;i<=n-1;i++){
    c=1;
    for(j=1;j<=i;j++){
      c=c*10;}
    p[n-i]=b%c-p[n-i+1];
  }
  h=0;
  for(i=1;p[i]==1;i++){
    h++;}
  
  if(k<=h) printf("%d",1);
  else printf("%lld",p[h+1]);
  return 0;
    
   }​

Compiler output:
main.c:28:4: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input
   28 |    }​
      |    ^
Language: Java

import java.util.Scanner;

public class Muin {

	public static void main(String[] args) {
		Scanner sc=new Scanner(System.in);
		String str=sc.nextLine();
		long k=sc.nextLong();
		long[] ranran=new long[100];
		char[] ctr=str.toCharArray();
		
		int j=0;
		while(ctr[j]=='1') {
//			System.out.println(j);
			j++;
		}
		
		if(j>=k)System.out.println(1);
		else System.out.println(String.valueOf(ctr[j]));
		
//		for(int j=0; j<ctr.length; j++) {
//			String ss=String.valueOf(ctr[j]);
//			ranran[j]=pow(Integer.parseInt(ss),5000000000000000L);
//			//ranran[j]=Integer.parseInt(ss)*5000000000000000L;
//		}
//		long sp=0;
//		int num;
//		for(num=0;sp<=k;num++) {
//			sp+=ranran[num];
//		}
//		num--;
////		System.out.println(num);
//		System.out.println(String.valueOf(ctr[num]));
//	}
//	public static int pow(int j,long l) {
//		if(j==1)return 1;
//		int ret=1;
//		for(int u=0;u<l;u++) {
//			ret*=j;
//			if(ret<0)return Integer.MAX_VALUE;
//		}
//		return ret;
//	}
	}
}


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

import java.util.*;
 
class Main {
static Scanner scan = new Scanner(System.in);
  
  public static void main(String[] args){
	int S = scan.next();
	int K = scan.nextInt();
    int oneCount = 0;
    String ans = null;
    
    while("1".equals(S.substring(i,(i+1)))){oneCount += 1;}
	if(oneCount >= K){ans = "1";}
    else{ ans = S.substring((oneCount-1),oneCount); }
    
    System.out.println(ans);
  }
}


Compiler output:
Main.java:7: error: incompatible types: String cannot be converted to int
	int S = scan.next();
	                 ^
Main.java:12: error: cannot find symbol
    while("1".equals(S.substring(i,(i+1)))){oneCount += 1;}
                                 ^
  symbol:   variable i
  location: class Main
Main.java:12: error: int cannot be dereferenced
    while("1".equals(S.substring(i,(i+1)))){oneCount += 1;}
                      ^
3 errors
printing javac parameters to: /w/javac.20260128_154504.args
Language: C

#include<stdio.h>

int main(){
	char s[105];
	int i=0;
	//for(i=0;i<105;i++)s[i]='1';
	int k;
	scanf("%s%d",s,&k);
	while(s[i]=='1')i++;
	for(i=0;i<length;i++){
		if(s[i]!='1')break;
	}
	if(k<i+1)puts("1");
	printf("%c",s[i]);
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:19: error: 'length' undeclared (first use in this function)
   10 |         for(i=0;i<length;i++){
      |                   ^~~~~~
main.c:10:19: note: each undeclared identifier is reported only once for each function it appears in
Language: Java

import java.util.Scanner;

public class Main{
public static void main(String[] args){
  Scanner sc = new Scanner(System.in);
String str  = sc.next();
int
//long K = sc.nextLong();
boolean ended = false;
int count=0;
while(!ended&&count<str.length()){
char value = str.charAt(count++);
if(value != '1'){
  System.out.println(value);
  ended=true;
}
}
if(!ended){
  System.out.println('1');
}

}
}


Compiler output:
Main.java:7: error: not a statement
int
^
Main.java:7: error: ';' expected
int
   ^
2 errors
Language: C

#include <stdio.h>
int main(void){
  long long a,b,c,k,h;
  int i,n,j;
  scanf("%lld",&a);
  scanf("%lld",&k);
  n=0;
  a=b;
  for(i=1;a<=1;i++){
    a=a/10;
    n++;}
  int p[100];
  p[n]=b%10;
  for(i=1;i<=n-1;i++){
    c=1;
    for(j=1;j<=i;j++){
      c=c*10;}
    p[n-i]=b%c-p[n-i+1];
  }
  h=0;
  for(i=1;p[i]==1;i++){
    h++;}
  
  if(k<=h) printf("%lld",1);
  else printf("%llf",p[h+1]);
  return 0;
    
    

Compiler output:
main.c: In function 'main':
main.c:26:3: error: expected declaration or statement at end of input
   26 |   return 0;
      |   ^~~~~~
Language: Java

    import java.util.Scanner;
    import java.util.Arrays;
     
    public class Main
    {
     
    	public static void main(String[] args)
    	{	Scanner s = new Scanner(System.in);
                    String a = s.next();
                    long n = s.nextLong();
              //    int d = s.nextInt();
                    char ans;
                    int i=0,j=0;
                    if(a.charAt(0)!='1'){
                           ans = a.charAt(0);
                    }else{
                       for(i=0;i<a.length();i++){
                            if(a.charAt(i)=='1' && j==i-1){
                               j++;
                            }else{
                               if(n<=j){
                                    ans= a.charAt(0);
                               }else{
                                    ans= a.charAt(i);
                               }
                            }
                       }
                    }
                    System.out.println(ans);
    	}
    }

Compiler output:
Main.java:29: error: variable ans might not have been initialized
                    System.out.println(ans);
                                       ^
1 error
Language: C++

#include <iostream>
using namespace std;

int main(){
    string s;
    int k;
    cin >> s >> k;
    if(s[0] != '1') cout << s[0] << endl;
    else{
        bool one = true;
        int c = 0;
        for(int i = 0; i < k; i++){
            if(s[i] != '1'){
                one = false;
                c = i;
                break;
            }
        }
        if(c == k-1){
            cout << 1 < <endl;
        } else if(c < k - 1){
            cout << s[c] << endl;
        }
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:20:25: error: expected primary-expression before '<' token
   20 |             cout << 1 < <endl;
      |                         ^
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main()
{
	char a[105];
	string s;
	gets(a);
	cin>>s;
	if(a[0]=='1') cout<<"1"<<endl;
	else cout<<a[0]<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    8 |         gets(a);
      |         ^~~~
      |         getw
Language: Java

import java.util.Scanner;

public class Main{
public static void main(String[] args){
  Scanner sc = new Scanner(System.in);
String str  = sc.next();
//long K = sc.nextLong();
boolean ended = false;
int count=0;
while(!ended){
char value = str.charAt(count++);
if(value != '1'){
  System.out.println(value);
  ended=true;
}
if(ended){
  System.out.println('1');
}

}
}


Compiler output:
Main.java:21: error: reached end of file while parsing
}
 ^
1 error
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main(void)
{
	string N;
	long long S,K;
	cin >> N >> S;
	int i=0;
	while(N[i]==1)
	{i++;}
	
	if(i>S)
		cout << N[0] << endl;
	else (s>10e6)
		cout << N[i+2] << endl;
	else
		cout << N[i+1] << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:15: error: 's' was not declared in this scope
   15 |         else (s>10e6)
      |               ^
a.cc:17:9: error: 'else' without a previous 'if'
   17 |         else
      |         ^~~~
Language: Java

    import java.util.Scanner;
    import java.util.Arrays;
     
    public class Main
    {
     
    	public static void main(String[] args)
    	{	Scanner s = new Scanner(System.in);
                    String a = s.next();
                    long n = s.nextLong();
              //    int d = s.nextInt();
                    long i=0,j=0,ans=0;
                    if(a.charAt(0)!='1'){
                           ans = a.charAt(0);
                    }else{
                       for(i=0;i<a.length();i++){
                            if(a.charAt(i)=='1' && j==i-1){
                               j++;
                            }else{
                               if(n<=j){
                                    ans= a.charAt(0);
                               }else{
                                    ans= a.charAt(i);
                               }
                            }
                       }
                    }
                    System.out.println(ans);
    	}
    }

Compiler output:
Main.java:17: error: incompatible types: possible lossy conversion from long to int
                            if(a.charAt(i)=='1' && j==i-1){
                                        ^
Main.java:23: error: incompatible types: possible lossy conversion from long to int
                                    ans= a.charAt(i);
                                                  ^
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
2 errors
Language: C++

#include<iostream>
#include<string>
using namespace std;
string s;
long long k;

int main(){
        cin>>s>>k;
        bool f=0;
        int c=0;
        for(int i=0;i<min(k,(long long)s.size());i++)if(s[i]=='1')c++;
        if(c+1>=k){
                cout<<1<<endl;
                return 0;
        }

        int ans=0;
        for(int i=0;i<s.size();i++){
                if(s[i]!='1'){
                        cout<<s[i]<<endl;
                        return 0;
                }
        }


Compiler output:
a.cc: In function 'int main()':
a.cc:23:10: error: expected '}' at end of input
   23 |         }
      |          ^
a.cc:7:11: note: to match this '{'
    7 | int main(){
      |           ^
Language: Java

import java.util.Scanner;
import java.util.Arrays;

public class Main
{

	public static void main(String[] args)
	{	Scanner s = new Scanner(System.in);
                String a = s.next();
                long n = s.nextLong();
          //    int d = s.nextInt();
                long i=0,j=0;
                if(a.charAt(0)!='1'){
                       ans = a.charAt(0);
                }else{
                   for(i=0;i<a.length();i++){
                        if(a.charAt(i)=='1' && j==i-1){
                           j++;
                        }else{
                           if(n<=j){
                                ans= a.charAt(0);
                           }else{
                                ans= a.charAt(i);
                           }
                        }
                   }
                }
                System.out.println(ans);
	}
}

Compiler output:
Main.java:14: error: cannot find symbol
                       ans = a.charAt(0);
                       ^
  symbol:   variable ans
  location: class Main
Main.java:17: error: incompatible types: possible lossy conversion from long to int
                        if(a.charAt(i)=='1' && j==i-1){
                                    ^
Main.java:21: error: cannot find symbol
                                ans= a.charAt(0);
                                ^
  symbol:   variable ans
  location: class Main
Main.java:23: error: cannot find symbol
                                ans= a.charAt(i);
                                ^
  symbol:   variable ans
  location: class Main
Main.java:23: error: incompatible types: possible lossy conversion from long to int
                                ans= a.charAt(i);
                                              ^
Main.java:28: error: cannot find symbol
                System.out.println(ans);
                                   ^
  symbol:   variable ans
  location: class Main
Note: Some messages have been simplified; recompile with -Xdiags:verbose to get full output
6 errors
Language: C++

#include <iostream>
#include <math.h>
using namespace std;

int main() {
  
  char a[102];
  char k;
  for(int i=0; i!=102 i++){
  	cin >> a[i];
  	if(a[i] != '1' && a[i] != '2' && a[i] != '3'){
  		if(a[i] != '4' && a[i] != '5' && a[i] != '6'){
  			if(a[i] != '7' && a[i] != '8' && a[i] != '9'){
  				k = a[i-1];
  				break;
  			}
  		}
  	}
  }

  int ans;

  for(int i=0; i!=100 i++){
  	if(a[i] != '1'){
  		ans = a[i] - '0';
  		cout << ans << '\n';
  		return 0;
  	}
  }

  cout << 1 << '\n';

  return 0;
}



Compiler output:
a.cc: In function 'int main()':
a.cc:9:22: error: expected ';' before 'i'
    9 |   for(int i=0; i!=102 i++){
      |                      ^~
      |                      ;
a.cc:23:22: error: expected ';' before 'i'
   23 |   for(int i=0; i!=100 i++){
      |                      ^~
      |                      ;
Language: C++

#include<iostream>
#include<string>
using namespace std;
string s;
long long k;

int main(){
        cin>>s>>k;
        bool f=0;
        int c=0;
        for(int i=0;i<min(k,(int)s.size());i++)if(s[i]=='1')c++;
        if(c+1>=k){
                cout<<1<<endl;
                return 0;
        }

        int ans=0;
        for(int i=0;i<s.size();i++){
                if(s[i]!='1'){
                        cout<<s[i]<<endl;
                        return 0;
                }
        }
        cout<<1<<endl;
        return 0;
}
~               

Compiler output:
a.cc: In function 'int main()':
a.cc:11:26: error: no matching function for call to 'min(long long int&, int)'
   11 |         for(int i=0;i<min(k,(int)s.size());i++)if(s[i]=='1')c++;
      |                       ~~~^~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/string:51,
                 from /usr/include/c++/14/bits/locale_classes.h:40,
                 from /usr/include/c++/14/bits/ios_base.h:41,
                 from /usr/include/c++/14/ios:44,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:233:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::min(const _Tp&, const _Tp&)'
  233 |     min(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:233:5: note:   template argument deduction/substitution failed:
a.cc:11:26: note:   deduced conflicting types for parameter 'const _Tp' ('long long int' and 'int')
   11 |         for(int i=0;i<min(k,(int)s.size());i++)if(s[i]=='1')c++;
      |                       ~~~^~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare)'
  281 |     min(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:281:5: note:   candidate expects 3 arguments, 2 provided
a.cc: At global scope:
a.cc:27:2: error: expected class-name at end of input
   27 | ~
      |  ^