criyle/codenet-compile-errors huggingface dataset:
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,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&, std::__cxx11::basic_string<char>::size_type)'
   11 |         for(int i=0;i<min(k,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 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
   11 |         for(int i=0;i<min(k,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 | ~
      |  ^
Language: Java

import java.util.Scanner;

public class C {
    static Scanner sc = new Scanner(System.in);
    public static void main(String[] args) {
        String s = sc.next();
        long k = sc.nextLong();
        for (int i = 0; i < s.length(); i++) {
            if (s.charAt(i) == '1') {
                if ((long)(i + 1) == k) {
                    System.out.println(1);
                    break;
                }
            }
            else {
                System.out.println(s.charAt(i));
                break;
            }
        }
    }
}


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

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

int main(void){
    string S;
    long long int K;
    cin>>S>>K;
    int one_index=-1;
    int two_index=-1;

    for(int i=0;i<S.length();i++){
        if(S[i]=='1'){
            one_index++;
        }else{
            break;
        }
    }
    if(one_index<1){
        for(int i=0;i<S.length();i++){
            if(S[i]=='2'){
                two_index++;
            }else{
                break;
            }
        }
    }

    if(K>1000000000000000&&0<two_index&&two_index<1){
        cout<<S[two_index+1]<<endl;
        return;
    }
    if(K<one_index+1){
        cout<<S[one_index]<<endl;
    }else if(one_index==-1){
        cout<<S[0]<<endl;
    }else{
        cout<<S[one_index+1]<<endl;
    }
    



    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:9: error: return-statement with no value, in function returning 'int' [-fpermissive]
   32 |         return;
      |         ^~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
char sz[1024];
int main()
{
	long long n,m,i;
	scanf("%s",sz);
	scanf("%lld",&m);
	for(i=0;i<strlen(sz);i++)
	{
		if(sz[i]!='1'&&sz[i]!='4'&&sz[i]!='5'&&sz!='8'&&sz!='9')
		{
			printf("%c",sz[i]);
			return 0;
		}
	}
	printf("1");
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:58: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   11 |                 if(sz[i]!='1'&&sz[i]!='4'&&sz[i]!='5'&&sz!='8'&&sz!='9')
      |                                                        ~~^~~~~
a.cc:11:67: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   11 |                 if(sz[i]!='1'&&sz[i]!='4'&&sz[i]!='5'&&sz!='8'&&sz!='9')
      |                                                                 ~~^~~~~
Language: C++

#include<stdio.h>
#include<string.h>
int main()
{
	char a[800000];
	gets(a);
	int n;
	scanf("%d",&n);
	if(n==1)
	
	
	printf("%d",a[0]);
	else for(int i=0;i<strlen(a);i++)
	if(a[i]!='1') {printf("%c",a[i]);break;}
	
	
	
	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    6 |         gets(a);
      |         ^~~~
      |         getw
Language: C++


#include <iostream>
#include <fstream>
#include <cmath>  
#include <cstdlib>
#include <ctime>
#include <algorithm>
#include <numeric>
#include <functional>
#include <string> 
#include <vector>
#include <bitset>
#include <map>
#include <set>
#include <stack>
#include <queue>
#include <deque>
 
using namespace std;
using ll = long long;
using ull = unsigned long long;
using ld = long double;
 
#define REP(i,n) for(int i = 0; i < int(n); i++)
#define REREP(i,n) for(int i = int(n - 1); i >= 0; i--)
#define FOR(i, m, n) for(int i = int(m);i < int(n);i++)
#define REFOR(i, m, n) for(int i = int(n - 1);i >= int(m);i--)
#define ALL(obj) (obj).begin(),(obj).end()
#define fi first 
#define se second
 
#define VI vector<int>
#define VVI vector<vector<int>>
#define VVVI vector<vector<vector<int>>>
#define VD vector<double>
#define VVD vector<vector<double>>
#define VVVD vector<vector<vector<double>>>
#define VL vector<ll>
#define VVL vector<vector<ll>>
#define VVVL vector<vector<vector<ll>>>
#define VB vector<bool>
#define VVB vector<vector<bool>>
#define VVVB vector<vector<vector<bool>>>
#define VS vector<string>
#define VVS vector<vector<string>>
#define VVVS vector<vector<vector<string>>>
 
#define PII pair<int,int>
#define PDD pair<double,double>
#define PLL pair<ll,ll>
#define VPII vector<pair<int,int>>
#define VVPII vector<vector<pair<int,int>>>
#define VVVPII vector<vector<vector<pair<int,int>>>>
#define VPLL vector<pair<ll,ll>>
#define VVPLL vector<vector<pair<ll,ll>>>
#define VVVPLL vector<vector<vector<pair<ll,ll>>>>
 
#define SUMI(obj) accumulate((obj).begin(), (obj).end(), 0)
#define SUMD(obj) accumulate((obj).begin(), (obj).end(), 0.)
#define SUML(obj) accumulate((obj).begin(), (obj).end(), 0LL)
#define SORT(obj) sort((obj).begin(), (obj).end()) // 1,2,3,4,5...
#define RESORT(obj) sort((obj).begin(), (obj).end(), greater<int>()) // 5,4,3,2,1...
#define UB(obj,n) upper_bound((obj).begin(), (obj).end(), n) //itr > n
#define LB(obj,n) lower_bound((obj).begin(), (obj).end(), n) //itr>= n
 
const ll HMOD = (ll)1e9 + 7;
const ll LMOD = 998244353;
const ll HINF = (ll)1e18;
const ll LINF = (ll)1e9;
const long double PI = 3.1415926535897932384626433;
const long double EPS = 1e-10;
 
void YN(bool flag) {
	cout << ((flag) ? "YES" : "NO") << endl;
}
 
void Yn(bool flag) {
	cout << ((flag) ? "Yes" : "No") << endl;
}
 
void yn(bool flag) {
	cout << ((flag) ? "yes" : "no") << endl;
}

int main(){
  string s;
  cin >> s;
  ll c;
  cin >> c;
  c =min(c,(ll)s.size());
  REP(i,c){
    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:92:13: error: expected ')' before '\U0000ff01'
   92 |     if (s[i]！='1'){
      |        ~    ^~
      |             )
a.cc:93:15: error: 'S' was not declared in this scope
   93 |       cout << S[i]<<endl;
      |               ^
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:13:13: error: 'flag' was not declared in this scope
   13 |             flag=1;
      |             ^~~~
a.cc:14:8: error: 'flag' was not declared in this scope
   14 |     if(flag==0)
      |        ^~~~
Language: Java

import java.util.*;

public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    String s=sc.next();
    int k =sc.nextInt();
    int st=0;
    while(s.length>st&&s.charAt(st)=='1'){
      st++;
    }
    if(k-1<st){
      System.out.println(1);
    }else{
      System.out.println(s.charAt(st));
    }
  }
}

Compiler output:
Main.java:9: error: cannot find symbol
    while(s.length>st&&s.charAt(st)=='1'){
           ^
  symbol:   variable length
  location: variable s of type String
1 error
Language: C++

int main(){
	string s;
	unsigned long long k;
	int i;
	cin>>s>>k;
	for(i=0;i<=s.size();i++){
		if(s.at(i)!='1'){
			break;
		}
	}
	cout<<s.at(i)<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:9: error: 'string' was not declared in this scope
    2 |         string s;
      |         ^~~~~~
a.cc:5:9: error: 'cin' was not declared in this scope
    5 |         cin>>s>>k;
      |         ^~~
a.cc:5:14: error: 's' was not declared in this scope
    5 |         cin>>s>>k;
      |              ^
a.cc:11:9: error: 'cout' was not declared in this scope
   11 |         cout<<s.at(i)<<endl;
      |         ^~~~
a.cc:11:24: error: 'endl' was not declared in this scope
   11 |         cout<<s.at(i)<<endl;
      |                        ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
string s;
long long j,k;
cin>>s>>k;j=100007
for(int i=0;i<s.length();i++){
	if(s[i]!='1'){j=i;break;}
}
if(j==100007)cout<<1<<endl;
else{
	if(k-1<j)cout<<1<<endl;
	else cout<<s[j]<<endl;
}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:19: error: expected ';' before 'for'
    6 | cin>>s>>k;j=100007
      |                   ^
      |                   ;
    7 | for(int i=0;i<s.length();i++){
      | ~~~                
a.cc:7:13: error: 'i' was not declared in this scope
    7 | for(int i=0;i<s.length();i++){
      |             ^
Language: C++

#include "iostream"
#include "algorithm"
#include "vector"
#include "string"

int main(int argc, char const *argv[]) {

  // std::cout << (2^3) << '\n';
  // std::cout << pow(2,3) << '\n';


  int S;
  std::cin >> S;



  long long K;
  std::cin >> K;

  int ans;

  while (1) {
    int keta1 = 0;
    int S2 = S;

    while (S2 > 10) {
      S2/=10;
      keta1++;
    }
    // std::cout << "K::"<<K << '\n';
    // 
    // std::cout << "S2::"<<S2 << '\n';
    //
    // std::cout << "S::"<<S << '\n';


    if (S2 == 1) {
      K -= 1;
      // S = S - 10 ^ keta1;
      S = S - pow(10, keta1);

    }else{

        ans = S2;
        break;

    }

    if (K < 1) {
      ans = S2;
      break;
    }
  }

  std::cout << ans << '\n';

  return 0;
}


Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:40:15: error: 'pow' was not declared in this scope
   40 |       S = S - pow(10, keta1);
      |               ^~~
Language: C++

#include <stdio.h>
int main(){
  char s[100];
  long long k;
  scanf("%s\n", s);
  scanf("%lld\n",&k );
  for (size_t i = 0; s[i] != \0 && i < k; i++) {
    if(s[i] != 1) {
      putchar(s[i]);
      return 0;
    }
  }
  puts("1");
  return 0;
}


Compiler output:
a.cc:7:30: error: stray '\' in program
    7 |   for (size_t i = 0; s[i] != \0 && i < k; i++) {
      |                              ^
Language: C++

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

int main() {
    string S; cin >> S;
    cout << (S[0]=='1' && K!=1 ? S[1] : S[0]) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:27: error: 'K' was not declared in this scope
    7 |     cout << (S[0]=='1' && K!=1 ? S[1] : S[0]) << endl;
      |                           ^
Language: C++

#include <iostream>
#include <string>
using namespace std;
int jyousuu(int in){
  int out=in;
  for(int i=0;i<in;i++)out=out*out;
  return out;
}
int main(){
  string S;
  int K,a;
  cin>>S>>K;
  for(int i=0;i<(S.length);i++){
    a+=jyousuu(int(S[i])-48);
    if(K<a){
      cout<<S[i]<<endl;
      return 0;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:20: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::length() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
   13 |   for(int i=0;i<(S.length);i++){
      |                 ~~~^~~~~~~
      |                           ()
Language: C++

#include <stdio.h>
int main(){
  char s[100];
  long long k;
  scanf("%s\n", s);
  scanf("%d\n",&k );
  for (size_t i = 0; s[i] != \0 && i < k; i++) {
    if(s[i] != 1) {
      putchar(s[i]);
      return 0;
    }
  }
  puts("1");
  return 0;
}

Compiler output:
a.cc:7:30: error: stray '\' in program
    7 |   for (size_t i = 0; s[i] != \0 && i < k; i++) {
      |                              ^
Language: C++

s=input()
k=int(input())
i_=-1
for i in range(len(s)):
	if int(s[i])>1:
		i_=i
		break
if i_!=-1:
	if k-1<i_: 
	    print(1)
	else: 
	    print(int(s[i_]))
else:
    print(1)

Compiler output:
a.cc:1:1: error: 's' does not name a type
    1 | s=input()
      | ^
Language: C++

#include <iostream>
#include <string>
using namespace std;
int jyousuu(int in){
  int out=in;
  for(int i=0;i<in;i++)out**;
  return out;
}
int main(){
  string S;
  int K,a;
  cin>>S>>K;
  for(int i=0;i<S.length;i++){
    a+=jyousuu(Character.digit(S[i], 10));
    if(K<a){
      cout<<S[i]<<endl;
      return 0;
    }
  }
}

Compiler output:
a.cc: In function 'int jyousuu(int)':
a.cc:6:29: error: expected primary-expression before ';' token
    6 |   for(int i=0;i<in;i++)out**;
      |                             ^
a.cc: In function 'int main()':
a.cc:13:19: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::length() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
   13 |   for(int i=0;i<S.length;i++){
      |                 ~~^~~~~~
      |                         ()
a.cc:14:16: error: 'Character' was not declared in this scope
   14 |     a+=jyousuu(Character.digit(S[i], 10));
      |                ^~~~~~~~~
Language: C++

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

int main() {
	int k;
	string s;
	cin>>s>>k;
	
	int l=max(k,s.length());
	int ans=1;
	for(int i=0;i<l;i++)
		if(s[i]!=1) {
			ans=s[i];
			break;
		}
	
	cout<<ans<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:18: error: no matching function for call to 'max(int&, std::__cxx11::basic_string<char>::size_type)'
    9 |         int l=max(k,s.length());
      |               ~~~^~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:9:18: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
    9 |         int l=max(k,s.length());
      |               ~~~^~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:9:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
    9 |         int l=max(k,s.length());
      |               ~~~^~~~~~~~~~~~~~
Language: C++

#include<stdio.h>
#include<iostream>
#include<string>
#include<math.h>
#include<cmath>
#include<algorithm>
#include<map>
#include<queue>
#include<stack>
#include<vector>
#include<time.h>
#include<ctime>
#include<functional>
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
ll inf = (1 << 29);
template<typename T>
T GCD(T a, T b) {
	while (max(a, b) % min(a, b)) {
		if (a > b)a = a % b;
		else b = b % a;
	}
	return min(a, b);
}
template<typename T>
T LCM(T a, T b) {
	return a / GCD(a, b)*b;
}
bool prime(ll a) {
	for (int i = 2; i <= sqrt(a); i++) {
		if (!(a%i))return false;
	}
	return true;
}
int main() {
	string s;
	ll k;
	cin >> s >> k;
	int one = 0;
	for (int i = 0; i < s.dize(); i++) {
		if (s[i] == 1)one++;
		else break;
	}
	if (one >= k)cout << 1 << endl;
	else if(one)cout << s[one] << endl;
	else cout << s[0] << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:41:31: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'dize'; did you mean 'size'?
   41 |         for (int i = 0; i < s.dize(); i++) {
      |                               ^~~~
      |                               size
Language: C++

#include <iostream>
using namespace std;
#define ll long long
int main() {
    string s;
    cin>>s;
    ll k;
    cin>>k;
    k--;
    int p=-1;
    for(int i=0;i<s.size();i++){
        if(s[i]!='1'){
            p=i;
            break;
        }
    }
    if(p==-1){
        cout<<1;
        continue;
    }
    if(k<p)
    cout<<1;
    else cout<<s[p];
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:9: error: continue statement not within a loop
   19 |         continue;
      |         ^~~~~~~~
Language: C++

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

int p[201];
int di[201];

int fun(int i)
{  int count=0;
   for(int j=1;j<=sqrt(i);j++)
     {
     	
     	 if(i%j==0 && j*j==i)
     	  ++count;
     	else if(i%j==0)
     	  count+=2;
     }
   return count;  
}

int main() {
	long long int k;
	string s;
	cin>>s>>k;
	for(long i=0;i<s.size();i++)
	  {if(s[i]!='1'){
	    cout<<s[i]<<'\n';
	    return 0;	
	  }
	  }
	else
	  cout<<s[0]<<"\n";
	// your code goes here
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:9: error: 'else' without a previous 'if'
   31 |         else
      |         ^~~~
Language: C++

#include<iostream>
#include<cstdio>
#include<string>
#include<cstring>

using namespace std;

int main(){
	string a;
	cin>>a;
	int n;
	cin>>n;
	for(int i = 0;i < n;i++){
		if(a[i] == "1"){
			continue;
		}else{
			cout<<a[i];
			return 0;
		}
	}
	cout<<"1";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:25: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   14 |                 if(a[i] == "1"){
Language: C++

#include<cstdio>
#include<cstring>
using namespace std;
int main()
{
	char s[105];
	int b[10000];
	cin>>s;
	int n=strlen(s);
	for(int i=0;i<n;i++)
	b[i]=s[i]-'0';
	if(b[0]==1)
	printf("%d",b[0]);
	else
	printf("%d",b[0]);

}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'cin' was not declared in this scope
    8 |         cin>>s;
      |         ^~~
a.cc:3:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    2 | #include<cstring>
  +++ |+#include <iostream>
    3 | using namespace std;
Language: C++

#include<stdio.h>
#include<string.h>
int main()
{
	char s[105];
	int b[10000];
	gets(s);
	int n=strlen(s);
	for(int i=0;i<n;i++)
	b[i]=s[i]-'0';
	if(b[0]==1)
	printf("%d",b[0]);
	else
	printf("%d",b[0]);

}

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++

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;


/*Please dont change namespace, Dcoder 
and class must not be public*/

//Compiler version 4.0, .NET Framework 4.5


namespace Dcoder
{
public class Program
{
public static void Main(string[] args)
{
Method(args);
}

public static void Method(string[] args)
{
string s=Console.ReadLine();
long k=long.Parse(Console.ReadLine());
for(int i=0;i<s.Length;i++){
	if(s[i]!='1'||i==k){
	Console.WriteLine(s[i]);
	return;
	}else{
		continue;
	}
}
Console.WriteLine(k);
}
}
}

Compiler output:
a.cc:1:7: error: expected nested-name-specifier before 'System'
    1 | using System;
      |       ^~~~~~
a.cc:2:7: error: expected nested-name-specifier before 'System'
    2 | using System.Collections.Generic;
      |       ^~~~~~
a.cc:3:7: error: expected nested-name-specifier before 'System'
    3 | using System.Linq;
      |       ^~~~~~
a.cc:4:7: error: expected nested-name-specifier before 'System'
    4 | using System.Text.RegularExpressions;
      |       ^~~~~~
a.cc:15:1: error: expected unqualified-id before 'public'
   15 | public class Program
      | ^~~~~~
Language: C++

//Written by Zhu Zeqi
//Come on,baby
//Hack,please
#include<bits/stdc++.h>
#define MAX 1000000000000000000
#define MOD 1000000007
#define PI 3.141592653589793238462
#define INF 0x3F3F3F3F
typedef long long ll;
//orz yht
using namespace std;
string i_s(int x){
	if(x==0)
	return "0";
	string ret="";
	while(x){
		ret=ret+(char)(x%10+'0');
		x/=10;
	}
	reverse(ret.begin(),ret.end());
	return ret;
}
string add(string a,string b){
	if(a=="")
	a="0";
	if(b=="")
	b="0";
	if(a.length()<b.length())
	swap(a,b);
	while(b.length()<a.length()){
		b='0'+b;
	}
	for(int i=0;i<a.length();i++){
		a[i]=a[i]+(b[i]-'0');
	}
	bool big=false;
	for(int i=a.length()-1;i>=0;i--){
		if(big){
			a[i]++;
		}
		big=false;
		if(a[i]>'9'){
			a[i]=a[i]-10;
			big=true;
		}
	}
	if(big)
	a='1'+a;
	return a;
}
string mul(string a,string b){
	vector<int> va,vb;
	if(a=="0" || b=="0")
	return "0";
	string ans;
	for(int i=0;i<a.length();i++){
		va.push_back(a[i]-'0');
	}
	for(int i=0;i<b.length();i++){
		vb.push_back(b[i]-'0');
	}
	reverse(va.begin(),va.end());
	reverse(vb.begin(),vb.end());
	vector<int> res;
	res.clear();
	res.resize(1005);
	for(int i=0;i<a.length();i++){
		for(int j=0;j<b.length();j++){
			res[i+j]+=(va[i]*vb[j]);
		}
	}
	for(int i=0;i<1005;i++){
		if(res[i]>9){
			res[i+1]+=(res[i]/10);
			res[i]%=10;
		}
	}
	for(int i=0;i<1005;i++){
		ans+=(res[i]+'0');
	}
	reverse(ans.begin(),ans.end());
	int k=0;
	while(ans[k]=='0'){
		k++;
	}
	ans=ans.substr(k);
	return ans;
}
bool is_prime(int n){
	if(n<2)
    return false;
    for(int i=2;i*i<=n;i++)
    if(n%i==0)
    return false;
    return true;
}
ll k,i;
string s;
int main(){
	//freopen("input.in","r",stdin);
	//freopen("output.out","w",stdout);
	cin>>s;
	cin>>k;
	if(s.size()==1){
		cout<<s[0];
	}
	else{
		while(s[i]=='1' && i<n-1){
			i++;
		}
		cout<<s[i];
	}
	//system("pause");
	return 0;	
}

Compiler output:
a.cc: In function 'int main()':
a.cc:108:38: error: 'n' was not declared in this scope; did you mean 'yn'?
  108 |                 while(s[i]=='1' && i<n-1){
      |                                      ^
      |                                      yn
Language: C++

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

int main(){
    string S;
    ll K;
    cin >> S >> K;
    int pos = 0;
    while(S[pos] == '1'){
        K--;
        pos++;
    }

    cout << S.substr(pos, 1) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: 'll' was not declared in this scope
    6 |     ll K;
      |     ^~
a.cc:7:17: error: 'K' was not declared in this scope
    7 |     cin >> S >> K;
      |                 ^
Language: C++

#include <algorithm>
#include <iostream>
#include <string.h>
#include <cstring>
#include <cstdio>

using namespace std ;

char s[233];
long long k ;
int n ;

int main ()
{
	int i ;
	gets(s+1),n=strlen(s+1);
	scanf("%lld",&k);
	i=1;
	while ( k>1 && s[i]=='1' && i<=n ) i++,k--;
	if ( k<=1 && s[i]=='1' ) puts("1");
	else 
	{
		while ( s[i]=='1' ) i++;
		putchar(s[i]);
	}
	return 0 ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   16 |         gets(s+1),n=strlen(s+1);
      |         ^~~~
      |         getw
Language: Java

public class Main {

    public static void main(String[] args) {
        new Main().solve();
    }

    void solve() {
        Scanner sc = new Scanner(System.in);
        String S = sc.next();
        long K = sc.nextLong();
        char[] s = S.toCharArray();
        for (int i = 0; i < S.length(); i++) {
            if (s[i] == '1') {
                K--;
                if (K == 0) {
                    System.out.println(s[i]);
                    return;
                }
            }
            if (s[i] != '1') {
                System.out.println(s[i]);
                return;
            }
        }
    }
}

Compiler output:
Main.java:8: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
        ^
  symbol:   class Scanner
  location: class Main
Main.java:8: error: cannot find symbol
        Scanner sc = new Scanner(System.in);
                         ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: C++

#include <algorithm>
#include <iostream>
#include <cstring>
#include <string>
#include <cstdio>

using namespace std ;

char s[233];
long long k ;
int n ;

int main ()
{
	int i ;
	gets(s+1),n=strlen(s+1);
	scanf("%lld",&k);
	i=1;
	while ( k>1 && s[i]=='1' && i<=n ) i++,k--;
	if ( k<=1 && s[i]=='1' ) puts("1");
	else 
	{
		while ( s[i]=='1' ) i++;
		putchar(s[i]);
	}
	return 0 ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   16 |         gets(s+1),n=strlen(s+1);
      |         ^~~~
      |         getw
Language: C++

#include <algorithm>
#include <iostream>
#include <cstring>
#include <cstdio>

using namespace std ;

char s[233];
long long k ;
int n ;

int main ()
{
	int i ;
	gets(s+1),n=strlen(s+1);
	scanf("%lld",&k);
	i=1;
	while ( k>1 && s[i]=='1' && i<=n ) i++,k--;
	if ( k<=1 && s[i]=='1' ) puts("1");
	else 
	{
		while ( s[i]=='1' ) i++;
		putchar(s[i]);
	}
	return 0 ;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   15 |         gets(s+1),n=strlen(s+1);
      |         ^~~~
      |         getw
Language: C++

#include<stdio.h>
#include<iostream>
#include<string>
#include<math.h>
#include<cmath>
#include<algorithm>
#include<map>
#include<queue>
#include<stack>
#include<vector>
#include<time.h>
#include<ctime>
#include<functional>
using namespace std;
typedef long long ll;
typedef pair<int, int> P;
ll inf = (1 << 29);
template<typename T>
T GCD(T a, T b) {
	while (max(a, b) % min(a, b)) {
		if (a > b)a = a % b;
		else b = b % a;
	}
	return min(a, b);
}
template<typename T>
T LCM(T a, T b) {
	return a / GCD(a, b)*b;
}
bool prime(ll a) {
	for (int i = 2; i <= sqrt(a); i++) {
		if (!(a%i))return false;
	}
	return true;
}
int main() {
	string s;
	ll k;
	cin >> s >> k;
	if (s[0] == '1') {
		if (k != 1)cout << s[1] << endl;
		else cout << 1 << endl;
	}
	else cout << s[0] << endl
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:44:34: error: expected ';' before 'return'
   44 |         else cout << s[0] << endl
      |                                  ^
      |                                  ;
   45 |         return 0;
      |         ~~~~~~
Language: C

#include <bits/stdc++.h>
using namespace std;
const int maxn = 600000 + 5;
int n,m,q,psz;
int a[maxn],t[maxn*4],T[maxn],ret[maxn];
struct Edge{
	int u,v;
	int id;
	bool operator < (const Edge &other) const {
		return other.v > v;
	} 
}edge[maxn],que[maxn];

int lowbit(int x) {
	return x&(-x);
}

long long sum(int pos) {
	long long ret = 0;
	while (pos > 0) {
		ret += T[pos];
		pos -= lowbit(pos);
	}
	return ret;
}

void add(int pos,int x) {
	while(pos <= n) {
		T[pos] += x;
		pos += lowbit(pos);
	}
}

int main() {
	scanf("%d%d%d",&n,&m,&q);
	for (int i = 0; i < m; i++) {
		scanf("%d%d",&edge[i].u,&edge[i].v);
		t[psz++] = edge[i].u;
		t[psz++] = edge[i].v;
	}
	for (int i = 0; i < q; i++) {
		scanf("%d%d",&que[i].u,&que[i].v);
		que[i].id = i;
		t[psz++] = que[i].u;
		t[psz++] = que[i].v;
	}
	sort(t,t+psz);
	n = unique(t,t+psz) - t;
	for(int i = 0; i < m; i++){
    	edge[i].u = lower_bound(t,t + psz,edge[i].u)-t+1;
    	edge[i].v = lower_bound(t,t + psz,edge[i].v)-t+1;
    }
    for(int i = 0; i < q; i++){
    	que[i].u = lower_bound(t,t + psz,que[i].u)-t+1;
    	que[i].v = lower_bound(t,t + psz,que[i].v)-t+1;
    }
    sort(edge,edge+m);
    sort(que,que+q);
    int j = 0;
    for (int i = 0; i < q; i++) {
    	while (j < m && edge[j].v <= que[i].v) add(edge[j++].u,1);
    	ret[que[i].id] = j - sum(que[i].u-1);
	}
    for (int i = 0; i < q; i++) printf("%d\n",ret[i]);
    return 0;
}

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

#include<bits/stdc++.h>

using namespace std;

const int N=200000+5;

struct node
{
	int num,l,r;
};

int n,m,q;
int mix[N*4];
node line[N],que[N];
int b[N*4];
int T[N];
int ret[N];
int top=0;

void decret()
{
	for (int i = 0; i < top; ++i) b[i] = mix[i];
	sort(b, b + top);
	n = unique(b, b + top) - b;
	for (int i = 0; i < m; ++i)
	{
		line[i+1].l = lower_bound(b, b + top, line[i+1].l) - b+1;
		line[i+1].r = lower_bound(b, b + top, line[i+1].r) - b+1;
	}
	for (int i = 0; i < q; ++i)
	{
		que[i+1].l = lower_bound(b, b + top, que[i+1].l) - b+1;
		que[i+1].r = lower_bound(b, b + top, que[i+1].r) - b+1;
	}
	return ;
}

bool cmp(const node& a,const node& b)
{
	return a.r<b.r;
}

int lowbit(int x)
{
	return x&(-x);
}

int add(int x)
{
	for(int i=x;i<=n;i+=i&-i)T[i]++;
}

int sum(int pos)
{
	LL ret=0;
	while(pos>0)
	{
		ret+=T[pos];
		pos-=lowbit(pos);
	}
	return ret;
}

int main()
{
	cin>>n>>m>>q;
	for(int i=1;i<=m;++i)
	{
		cin>>line[i].l>>line[i].r;
		mix[top]=line[i].l;
		top++;
		mix[top]=line[i].r;
		top++;
		line[i].num=i;
	}
	for(int i=1;i<=q;++i)
	{
		cin>>que[i].l>>que[i].r;
		mix[top]=que[i].l;
		top++;
		mix[top]=que[i].r;
		top++;
		que[i].num=i;
	}
	decret();
	sort(que+1,que+1+q,cmp);
	sort(line+1,line+1+m,cmp);
	int j=1;
	for(int i=1;i<=q;++i)
	{
		while(j<=m&&line[j].r<=que[i].r)add(line[j++].l);
		ret[que[i].num]=j-sum(que[i].l-1);
	}
	for(int i=1;i<=q;++i)cout<<ret[i]-1<<" ";
}

Compiler output:
a.cc: In function 'int add(int)':
a.cc:51:1: warning: no return statement in function returning non-void [-Wreturn-type]
   51 | }
      | ^
a.cc: In function 'int sum(int)':
a.cc:55:9: error: 'LL' was not declared in this scope
   55 |         LL ret=0;
      |         ^~
a.cc:58:20: error: incompatible types in assignment of 'int' to 'int [200005]'
   58 |                 ret+=T[pos];
      |                 ~~~^~~~~~~~
a.cc:61:16: error: invalid conversion from 'int*' to 'int' [-fpermissive]
   61 |         return ret;
      |                ^~~
      |                |
      |                int*
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
const ll INF = 1e16;
const ll mod = 1000000007;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

int main() {
  ll n, m, q; cin >> n >> m >> q;
  vector <vector <ll>> v(n, vector <ll> ());
  rep(i, m) {
    ll l, r; cin >> l >> r;
    v.at(l-1).push_back(r-l)
  }
  rep(i, n) sort(v.at(i).begin(), v.at(i).end());
  rep(i, q) {
    ll l, r; cin >> l >> r;
    l--; r--;
    ll res = 0, dis = r - l;
    for (ll j = l; j <= r; j++) {
      auto itr = upper_bound(v.at(j).begin(), v.at(j).end(), dis);
      res += distance(v.at(j).begin(), itr);
      dis++;
    }
    cout << res << endl;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:29: error: expected ';' before '}' token
   13 |     v.at(l-1).push_back(r-l)
      |                             ^
      |                             ;
   14 |   }
      |   ~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("Ofast")
#pragma GCC target("avx")
#define all(x) (x).begin(),(x).end()
#define rep(i,n) for(int (i)=0;i<(n);i++)
#define rrep(i,n) for(int (i)=1;i<=(n);i++)
#define REP(i,m,n) for(int (i)=(m);(i)<(n);(i)++)
#define MOD 1000000007
#define INF 1e18
#define fcout cout << fixed << setprecision(15)
#define int long long
#define endl "\n"
#define yorn(f) puts((f)?"Yes":"No")
#define YORN(f) puts((f)?"YES":"NO")
typedef long long ll;
typedef pair<int, int> P;
int gcd(int a,int b){return b?gcd(b,a%b):a;};
int lcm(int a,int b){return a/gcd(a,b)*b;};
int mod(int a,int b){return (a+b-1)/b;};
template<typename A, size_t N, typename T>
void Fill(A(&array)[N],const T &val){std::fill((T*)array,(T*)(array+N),val);}
template<class T>inline bool chmax(T& a,T b){if(a<b){a=b;return true;}return false;};
template<class T>inline bool chmin(T& a,T b){if(a>b){a=b;return true;}return false;};

int c[550][550];

signed main() {
	cin.tie(0);
	cout.tie(0);
	ios::sync_with_stdio(false);
	
	int n, m, q;
	cin >> n >> m >> q;
	rep(i, m) {
		int l, r;
		cin >> l >> r;
		REP(i, r, 550) c[l][j]++;
	}

	while(q--) {
		int ans = 0;
		int l, r;
		cin >> l >> r;
		for(int i = l; i <= r; i++) ans += c[j][r];
		cout << ans << endl;
	}
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:38:37: error: 'j' was not declared in this scope
   38 |                 REP(i, r, 550) c[l][j]++;
      |                                     ^
a.cc:45:54: error: 'j' was not declared in this scope
   45 |                 for(int i = l; i <= r; i++) ans += c[j][r];
      |                                                      ^
Language: C++

n, m, q = map(int, input().split())
a = [[0 for i in range(n)] for j in range(n)]
for i in range(m):
    l, r = map(int, input().split())
    a[l-1][r-1] += 1

for i in range(n):
    for j in range(1, n):
        a[i][j] += a[i][j-1]

for j in range(n):
    for i in range(1, n):
        a[i][j] += a[i-1][j]

for i in range(q):
    l, r = map(int, input().split())
    ans = a[r-1][r-1]
    if l > 1:
        ans += a[l-2][l-2]-a[r-1][l-2]-a[l-2][r-1]
    print(ans)

Compiler output:
a.cc:1:1: error: 'n' does not name a type
    1 | n, m, q = map(int, input().split())
      | ^
Language: C++

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

int main(){
    int n,m,Q;
    cin >> n >> m >> Q;
    int l[m],r[m],p[n],q[n];
    vector<int> teisya(n);
    for(int i = 0;i < m;i++){
        cin >> l[i] >> r[i];
        teisya.push_back(l[i]);
        teisya.push_back(r[i]);
    }
    for(int i = 0;i < Q;i++){
        cin >> p[i] >> q[i];
    }
    /**/
    for(int i = 0;i < q;i++){
        int ans = 0;
        for(int j = 0;j < m/2;j++){
            if((teisya.at(j) >= p[i])&&(teisya.at(j) <= q[i])){
                ans++;
            }
        }
        cout << ans << endl;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:21: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   19 |     for(int i = 0;i < q;i++){
      |                   ~~^~~
Language: C++

10 10 10
1 6
2 9
4 5
4 7
4 7
5 8
6 6
6 7
7 9
10 10
1 8
1 9
1 10
2 8
2 9
2 10
3 8
3 9
3 10
1 10

Compiler output:
a.cc:1:1: error: expected unqualified-id before numeric constant
    1 | 10 10 10
      | ^~
Language: C++

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

vector<vector<int>> sum;
int buildSumTable(vector<int>L, vector<int>R){
  sum=vector<vector<int>>(N+1,vector<int>(N+1,0));
  for (int i=0;i<M;++i){
    sum[L[i]][R[i]]++;
  }
  
  for (int i=0;i<=N;++i){
    for (int j=1;j<=N;++j){
      sum[i][j]+=sum[i-1][j];
      sum[i][j]+=sum[i][j-1];
      sum[i][j]-=sum[i-1][j-1];
    }
  } 
}

int getSumRange(int L, int R){
  int ans=sum[R][R]-sum[R][L-1]-sum[L-1][R]+sum[L-1][L-1];
  return ans;
}

int main(){
  int N,M,Q;
  cin >> N >> M >> Q;
  vector<int> L(M),R(M);
  for (int i=0;i<M;++i) cin >> L[i] >> R[i];
  vector<int> p(Q),q(Q);
  for (int i=0;i<Q;++i) cin >> p[i] >> q[i];
  buildSumTable(L,R);
  for (int i=0;i<Q;++i){
    int ans=getSumRange(p[i],q[i]);
    cout << ans << endl;
  }
}


Compiler output:
a.cc: In function 'int buildSumTable(std::vector<int>, std::vector<int>)':
a.cc:6:27: error: 'N' was not declared in this scope
    6 |   sum=vector<vector<int>>(N+1,vector<int>(N+1,0));
      |                           ^
a.cc:7:18: error: 'M' was not declared in this scope
    7 |   for (int i=0;i<M;++i){
      |                  ^
a.cc:18:1: warning: no return statement in function returning non-void [-Wreturn-type]
   18 | }
      | ^
Language: C++

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

int main(){
  int N,M,Q;
  cin >> N >> M >> Q;
  vector<int> L(M),R(M);
  for (int i=0;i<M;++i) cin >> L[i] >> R[i];
  vector<int> p(Q),q(Q);
  for (int i=0;i<Q;++i) cin >> p[i] >> q[i];
  buildSumTable(L,R);
  for (int i=0;i<Q;++i){
    int ans=getSumRange(p[i],q[i]);
    cout << ans << endl;
  }
}

vector<vector<int>> sum;
int buildSumTable(vector<int>L, vector<int>R){
  sum=vector<vector<int>>(N+1,vector<int>(N+1,0));
  for (int i=0;i<M;++i){
    sum[L[i]R[i]]++;
  }
  
  for (int i=0;i<=N;++i){
    for (int j=1;j<=N;++j){
      sum[i][j]+=sum[i-1][j];
      sum[i][j]+=sum[i][j-1];
      sum[i][j]-=sum[i-1][j-1];
    }
  } 
}

int getSumRange(int L, int R){
  int ans=sum[R][R]-sum[R][L-1]-sum[L-1][R]+sum[L-1][L-1];
  return ans;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: 'buildSumTable' was not declared in this scope
   11 |   buildSumTable(L,R);
      |   ^~~~~~~~~~~~~
a.cc:13:13: error: 'getSumRange' was not declared in this scope
   13 |     int ans=getSumRange(p[i],q[i]);
      |             ^~~~~~~~~~~
a.cc: In function 'int buildSumTable(std::vector<int>, std::vector<int>)':
a.cc:20:27: error: 'N' was not declared in this scope
   20 |   sum=vector<vector<int>>(N+1,vector<int>(N+1,0));
      |                           ^
a.cc:21:18: error: 'M' was not declared in this scope
   21 |   for (int i=0;i<M;++i){
      |                  ^
a.cc:22:13: error: expected ']' before 'R'
   22 |     sum[L[i]R[i]]++;
      |             ^
      |             ]
a.cc:22:13: error: expected ';' before 'R'
   22 |     sum[L[i]R[i]]++;
      |             ^
      |             ;
a.cc:22:13: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; reference = std::vector<int>&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:32:1: warning: no return statement in function returning non-void [-Wreturn-type]
   32 | }
      | ^
Language: C++

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

vector<vector<int>> sum;
int buildSumTable(vector<int>L, vector<int>R){
  sum=vector<vector<int>>(N+1,vector<int>(N+1,0));
  for (int i=0;i<M;++i){
    sum[L[i]R[i]]++;
  }
  
  for (int i=0;i<=N;++i){
    for (int j=1;j<=N;++j){
      sum[i][j]+=sum[i-1][j];
      sum[i][j]+=sum[i][j-1];
      sum[i][j]-=sum[i-1][j-1];
    }
  } 
}

int getSumRange(int L, int R){
  int ans=sum[R][R]-sum[R][L-1]-sum[L-1][R]+sum[L-1][L-1];
  return ans;
}

int main(){
  int N,M,Q;
  cin >> N >> M >> Q;
  vector<int> L(M),R(M);
  for (int i=0;i<M;++i) cin >> L[i] >> R[i];
  vector<int> p(Q),q(Q);
  for (int i=0;i<Q;++i) cin >> p[i] >> q[i];
  buildSumTable(L,R);
  for (int i=0;i<Q;++i){
    int ans=getSumRange(p[i],q[i]);
    cout << ans << endl;
  }
}

Compiler output:
a.cc: In function 'int buildSumTable(std::vector<int>, std::vector<int>)':
a.cc:6:27: error: 'N' was not declared in this scope
    6 |   sum=vector<vector<int>>(N+1,vector<int>(N+1,0));
      |                           ^
a.cc:7:18: error: 'M' was not declared in this scope
    7 |   for (int i=0;i<M;++i){
      |                  ^
a.cc:8:13: error: expected ']' before 'R'
    8 |     sum[L[i]R[i]]++;
      |             ^
      |             ]
a.cc:8:13: error: expected ';' before 'R'
    8 |     sum[L[i]R[i]]++;
      |             ^
      |             ;
a.cc:8:13: warning: ignoring return value of 'std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](size_type) [with _Tp = std::vector<int>; _Alloc = std::allocator<std::vector<int> >; reference = std::vector<int>&; size_type = long unsigned int]', declared with attribute 'nodiscard' [-Wunused-result]
In file included from /usr/include/c++/14/vector:66,
                 from /usr/include/c++/14/functional:64,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:53,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_vector.h:1128:7: note: declared here
 1128 |       operator[](size_type __n) _GLIBCXX_NOEXCEPT
      |       ^~~~~~~~
a.cc:18:1: warning: no return statement in function returning non-void [-Wreturn-type]
   18 | }
      | ^
Language: C++

#include <iostream>
#include <utility>
#include <array>
using namespace std;

constexpr int MaxN = 500;

int main()
{
	int N, M, Q;

	cin >> N >> M >> Q;

	int C[MaxN][MaxN];
	memset(C, 0, MaxN * MaxN * sizeof(int));

	for (int i = 0; i < M; ++i)
	{
		int L, R;
		cin >> L >> R;
		++C[L-1][R-1];
	}

	for (int i = 1; i < N; ++i)
	{
		C[i][0] += C[i-1][0];
		C[0][i] += C[0][i-1];
	}

	for (int i = 1; i < N; ++i)
	{
		for (int j = 1; j < N; ++j)
		{
			C[i][j] += C[i-1][j] + C[i][j-1] - C[i-1][j-1];
		}
	}

	for (int i = 0; i < Q; ++i)
	{
		int p, q;
		cin >> p >> q;
		--p;
		--q;

		int count = C[q][q];

		if (p > 0)
		{
			count -= C[p-1][q];
			count -= C[q][p-1];
			count += C[p-1][p-1];
		}

		cout << count << endl;
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:9: error: 'memset' was not declared in this scope
   15 |         memset(C, 0, MaxN * MaxN * sizeof(int));
      |         ^~~~~~
a.cc:4:1: note: 'memset' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    3 | #include <array>
  +++ |+#include <cstring>
    4 | using namespace std;
Language: C++

import java.util.*;

public class Main {
    public static class Area implements Comparable<Area>{
        int left;
        int right;
        
        void Area(int x,int y){
            this.left=x;
            this.right=y;
        }
        
        public int compareTo(Area a){
            return this.left-a.left;
        }
        
        public void tostring(){
            System.out.println("["+this.left+","+this.right+"]");
        }
    }
    
    public static void main(String[] args) throws Exception {
        Scanner sc=new Scanner(System.in);
        int N=sc.nextInt();
        int M=sc.nextInt();
        int Q=sc.nextInt();
        Area[] LR=new Area[M];
        int[] idx=new int[N+2];
        idx[N+1]=M-1;
        
        for(int i=0;i<N;i++){
            idx[i]=-1;
        }
        idx[0]=0;
         
        for(int i=0;i<M;i++){
            Area area=new Area();
            area.Area(sc.nextInt(),sc.nextInt());
            LR[i]=area;
        }
        
        Arrays.sort(LR);
        
        for(int i=0;i<M;i++){
            if(i==0){
                int tmp=LR[i].left;
                idx[tmp]=0;
            }else{
                if(LR[i].left!=LR[i-1].left){
                    idx[LR[i].left]=i;
                }
            }
        }
        
        for(int i=0;i<N+1;i++){
            if(idx[i]==-1){
                idx[i]=idx[i-1];
            }
        }
        for(int i=0;i<Q;i++){
            int p,q;
            p=sc.nextInt();
            q=sc.nextInt();
            int ans=0;
            for(int j=idx[p];j<=idx[q+1];j++){
                if(p<=LR[j].left&&LR[j].right<=q){
                    ans++;
                }
            }
            System.out.println(ans);
        }
        
    }
}


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: C++

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

bool sort_pair(const pair<int, int> &a, const pair<int, int> &b) {
  if (a.first != b.first) {
    return a.first < b.first;
  } else {
    return a.second < b.second;
  }
}

int main() {
  int N, M, Q, l, r, p, q;
  cin >> N >> M >> Q;
  vector<pair<int, int> > lr;
  for(int i=0; i<M; i++) {
    scanf("%d %d", &l, &r);
    lr.push_back(make_pair(l, r));
  }
  sort(lr.begin(), lr.end(), sort_pair);
  for(int i=0; i<Q; i++) {
    scanf("%d %d", &p, &q);
    int ans = 0;
    for(auto it : lr) {
      if (q < it.first) break;
      if (p <= it.first && it.second <= q) ans++;
    }
    cout << ans << endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:21:3: error: 'sort' was not declared in this scope; did you mean 'short'?
   21 |   sort(lr.begin(), lr.end(), sort_pair);
      |   ^~~~
      |   short
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,j,n) for(int i=(int)(j);i<(int)(n);i++)
#define REP(i,j,n) for(int i=(int)(j);i<=(int)(n);i++)
#define MOD 1000000007
#define int long long
#define ALL(a) (a).begin(),(a).end()
#define vi vector<int>
#define vii vector<vi>
#define pii pair<int,int>
#define priq priority_queue<int>
#define disup(A,key) distance(A.begin(),upper_bound(ALL(A),(int)(key)))
#define dislow(A,key) distance(A.begin(),lower_bound(ALL(A),(int)(key)))
#define tii tuple<int,int,int>
#define Priq priority_queue<int,vi,greater<int>>
#define pb push_back
#define mp make_pair
signed main(){
  int N,M,Q; cin>>N>>M>>Q;
  vector<vector<pii>>> A(N);
  rep(i,0,M){
    int L,R; cin>>L>>R;
    A[L-1].pb(mp(R-1,1));
    A[R-1].pb(mp(L-1,-1));
  }
  rep(i,0,Q){
    int L,R; cin>>L>>R;
    int sum=0;
    int ans=0;
    rep(j,L-1,R){
      rep(k,0,A[j].size()){
        if(L-1<=A[j][k].first&&A[j][k].first<R)
          sum+=A[j][k].second;
      }
      ans=max(ans,sum);
    }
    cout<<ans<<endl;
  }
  }


Compiler output:
a.cc: In function 'int main()':
a.cc:20:22: error: expected unqualified-id before '>' token
   20 |   vector<vector<pii>>> A(N);
      |                      ^
a.cc:23:5: error: 'A' was not declared in this scope
   23 |     A[L-1].pb(mp(R-1,1));
      |     ^
a.cc:31:15: error: 'A' was not declared in this scope
   31 |       rep(k,0,A[j].size()){
      |               ^
a.cc:3:47: note: in definition of macro 'rep'
    3 | #define rep(i,j,n) for(int i=(int)(j);i<(int)(n);i++)
      |                                               ^