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

#include<iostream>
using namespace std;
int main(){
  char ch[200],s[200],str[400];
  int n,i=0,j=0;
  cin>>n;
  cout<<"\n";
  cin>>ch;
  cin>>s;
  while(i<n){
    str[j]=ch[i];
    j++;
    dtr[j]=s[i];
    j++;
    i++;
  }
  cout<<str;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:5: error: 'dtr' was not declared in this scope; did you mean 'str'?
   13 |     dtr[j]=s[i];
      |     ^~~
      |     str
Language: C

#include<stdio.h>
void main()
{
  string s[101],t[101];
  int n,i;
  scanf("%d %s %s",&n,s,t);
  for(i=0;i<n;i++)
  {
    printf("%s %s",s[i],t[i]);
  }
}


Compiler output:
main.c: In function 'main':
main.c:4:3: error: unknown type name 'string'; did you mean 'stdin'?
    4 |   string s[101],t[101];
      |   ^~~~~~
      |   stdin
Language: C++

int main()
{
	std::ios::sync_with_stdio(false);
	string s,t,ans="";
  int i,j,n,m;
  cin>>n;
  cin>>s>>t;
  for(i=0;i<n;i++){
    cout<<s[i];
    cout<<t[i];
  }
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:3:14: error: 'std::ios' has not been declared
    3 |         std::ios::sync_with_stdio(false);
      |              ^~~
a.cc:4:9: error: 'string' was not declared in this scope
    4 |         string s,t,ans="";
      |         ^~~~~~
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin>>n;
      |   ^~~
a.cc:7:8: error: 's' was not declared in this scope
    7 |   cin>>s>>t;
      |        ^
a.cc:7:11: error: 't' was not declared in this scope
    7 |   cin>>s>>t;
      |           ^
a.cc:9:5: error: 'cout' was not declared in this scope
    9 |     cout<<s[i];
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define rep(i, srt, end) for (long long i = (srt); i < (long long)(end); i++)
#define VL vector<ll>
#define VS vector<string>
#define VB vector<bool>
#define VP vector<pair<ll,ll>>
#define VVL vector<vector<ll>>
#define VVP vector<vector<pair<ll,ll>>>
#define PL pair<ll,ll>
#define ALL(v) (v).begin(), (v).end()
ll d1[4] = {1, -1, 0, 0};
ll d2[4] = {0, 0, 1, -1};

int main(){
  string s, t;
  cin >> s >> t;
  rep(i, 0, n) cout << s[i] << t[i];
  cout << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:13: error: 'n' was not declared in this scope
   19 |   rep(i, 0, n) cout << s[i] << t[i];
      |             ^
a.cc:4:68: note: in definition of macro 'rep'
    4 | #define rep(i, srt, end) for (long long i = (srt); i < (long long)(end); i++)
      |                                                                    ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
 int a;
 cin >> a;
 string b, c;
 cin >> b >> c;
  for(int i = 0;i<a;i++){
   cout << b.at(i) << c.at(i);
 }
  cout >> >>endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:11: error: expected primary-expression before '>>' token
   11 |   cout >> >>endl;
      |           ^~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
 int a;
 cin >> a;
 string b, c;
 cin >> b >> c
  for(int i = 0;i<a;i++){
   cout << b.at(i) << c.at(i) << endl;
 }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: expected ';' before 'for'
    7 |  cin >> b >> c
      |               ^
      |               ;
    8 |   for(int i = 0;i<a;i++){
      |   ~~~          
a.cc:8:17: error: 'i' was not declared in this scope
    8 |   for(int i = 0;i<a;i++){
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
 int a;
 cin >> a;
 sting b, c;
 cin >> b >> c
  for(int i = 0;i<a;i++){
   cout << b.at(i) << c.at(i) << endl;
 }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:2: error: 'sting' was not declared in this scope
    6 |  sting b, c;
      |  ^~~~~
a.cc:7:9: error: 'b' was not declared in this scope
    7 |  cin >> b >> c
      |         ^
a.cc:7:14: error: 'c' was not declared in this scope
    7 |  cin >> b >> c
      |              ^
a.cc:8:17: error: 'i' was not declared in this scope
    8 |   for(int i = 0;i<a;i++){
      |                 ^
Language: C

char S[110];
2 char T[110];
3 int main(){
4 int a;scanf("%d",&a);
5 scanf("%s%s",S,T);
6 for(int i=0;i<a;i++)printf("%c%c",S[i],T[i]);printf("\n");

Compiler output:
main.c:2:1: error: expected identifier or '(' before numeric constant
    2 | 2 char T[110];
      | ^
main.c:3:1: error: expected identifier or '(' before numeric constant
    3 | 3 int main(){
      | ^
Language: C

#include<stdio.h>
 
int main(){
 
int n;
 
scanf("%d",&n);
 
char s[n],t[n];
 
scanf("%s %s",&s,&t);
 
for(int i=0;i<n;i++){
  printf("%c%c",s[i],t[i]);
}

Compiler output:
main.c: In function 'main':
main.c:15:1: error: expected declaration or statement at end of input
   15 | }
      | ^
Language: C

#include<stdio.h>
 
int main(void){
 
int n;
 
scanf("%d",&n);
 
char s[n],t[n];
 
scanf("%s %s",&s,&t);
 
for(int i=0;i<n;i++){
  printf("%c%c",s[i],t[i]);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:16:1: error: expected declaration or statement at end of input
   16 | }
      | ^
Language: C++

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

int main() {
  int A;
  cin >> A;
  string N,M;
  cin >> N >> M;
  for(int i = 0;i < A;i++){
    cout << N[i] << M[i];
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:2: error: expected '}' at end of input
   11 | }
      |  ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: Java

import java.util.Scanner;

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

    int N = scan.nextInt();
    String S = scan.next();
    String T = scan.next();

    for(int i = 0 ; i < N ; i++) {
    	System.out.print(s.charAt(i) + t.charAt(i));
	}
}


Compiler output:
Main.java:14: error: reached end of file while parsing
}
 ^
1 error
Language: C++

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

int main(){
  int N;
  cin>>N;
  string s,t;
  cin>>s>>t;
  string kk="";
  for(int i=0;i<N;i++){
    kk+=s[i];
    kk+=t[i];
  }
  cout<<kk<<endl;
}

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

#incluude <bits/sidc++.h>
using namespace std;

int main(){
  int N;
  cin>>N;
  string s,t;
  cin>>s>>t;
  string kk="";
  for(int i=0;i<N;i++){
    kk+=s[i];
    kk+=t[i];
  }
  cout<<kk<<endl;
}

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incluude; did you mean #include?
    1 | #incluude <bits/sidc++.h>
      |  ^~~~~~~~
      |  include
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope
    6 |   cin>>N;
      |   ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incluude <bits/sidc++.h>
a.cc:7:3: error: 'string' was not declared in this scope
    7 |   string s,t;
      |   ^~~~~~
a.cc:1:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
  +++ |+#include <string>
    1 | #incluude <bits/sidc++.h>
a.cc:8:8: error: 's' was not declared in this scope
    8 |   cin>>s>>t;
      |        ^
a.cc:8:11: error: 't' was not declared in this scope
    8 |   cin>>s>>t;
      |           ^
a.cc:9:9: error: expected ';' before 'kk'
    9 |   string kk="";
      |         ^~~
      |         ;
a.cc:11:5: error: 'kk' was not declared in this scope
   11 |     kk+=s[i];
      |     ^~
a.cc:14:3: error: 'cout' was not declared in this scope
   14 |   cout<<kk<<endl;
      |   ^~~~
a.cc:14:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:14:9: error: 'kk' was not declared in this scope
   14 |   cout<<kk<<endl;
      |         ^~
a.cc:14:13: error: 'endl' was not declared in this scope
   14 |   cout<<kk<<endl;
      |             ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #incluude <bits/sidc++.h>
Language: C++

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

    #define ll long long
    #define ff first
    #define ss second
    #define pb push_back
    #define vll vector<ll>
    #define mll map<ll,ll>
    #define MOD 1000000007
    #define pll pair<ll,ll>
constexpr ll INF = 1999999999999999997; 
    #define fastio ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL)
    int main() {
      fastio;
      int n;
      cin>>n;
    string a,b;
    cin>>a>>b;
    
   // vector<char>ans;
   for(int i=0;i<n;i++)
   {
       cout<<a[i]<<t[i];
   }

    }

Compiler output:
a.cc: In function 'int main()':
a.cc:24:20: error: 't' was not declared in this scope
   24 |        cout<<a[i]<<t[i];
      |                    ^
Language: C++

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

    #define ll long long
    #define ff first
    #define ss second
    #define pb push_back
    #define vll vector<ll>
    #define mll map<ll,ll>
    #define MOD 1000000007
    #define pll pair<ll,ll>
constexpr ll INF = 1999999999999999997; 
    #define fastio ios_base::sync_with_stdio(false), cin.tie(NULL), cout.tie(NULL)
    int main() {
      fastio;
      int n;
      cin>>n
    string a,b;
    cin>>a>>b;
    
    for(int i=0;i<n;i++)
    {
      if(i&1)
        cout<<b[i];
      else
        cout<<a[i];
    }

    }

Compiler output:
a.cc: In function 'int main()':
a.cc:17:13: error: expected ';' before 'string'
   17 |       cin>>n
      |             ^
      |             ;
   18 |     string a,b;
      |     ~~~~~~   
a.cc:19:10: error: 'a' was not declared in this scope
   19 |     cin>>a>>b;
      |          ^
a.cc:19:13: error: 'b' was not declared in this scope
   19 |     cin>>a>>b;
      |             ^
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep2(i, s, n) for (int i = (s); i < (int)(n); i++)
using namespace std;
using P = pair<int, int>; 
using ll = long long;

int main()
{
  string,s,t,ans="";
  int n;
  cin >> n >> s>>t;
  rep(i,n){
    ans+=s[i];
    ans+=t[i];
  }
  cout << ans << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: expected unqualified-id before ',' token
   10 |   string,s,t,ans="";
      |         ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
 
int main()
{
  int t,n,i,j,k,l,l1;
  cin>>n;
  string s1,s2;
  cin>>s1>>s2;
  for(i=0;i<n;i++)
  {
    cout<<s1[i]<<s2[i];
  }

Compiler output:
a.cc: In function 'int main()':
a.cc:13:4: error: expected '}' at end of input
   13 |   }
      |    ^
a.cc:5:1: note: to match this '{'
    5 | {
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int a,i;
  cin>>a;
  char ar1[a],ar2[a];
  cin>>ar1>>ar2;
  for(i=0; i<n; i++)
  {
    cout<<ar1[i]<<ar2[i];
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:14: error: 'n' was not declared in this scope
    9 |   for(i=0; i<n; i++)
      |              ^
Language: C++

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

int main() {
  int N;
  cin >> N;
  string s,t;
  cin >> s >> t;
  for(int i=0;i<N;i++){
    cout << s.at(i) << t.at(i);
  }
  cut << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:3: error: 'cut' was not declared in this scope
   12 |   cut << endl;
      |   ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
	int N;
  	char S[100];
  	char T[100];
  	
  	cin >> N >> S >> T;
  	
  	for(int i = 0 ; i < N; i++){
      cout << S[i]T[i];
    }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:19: error: expected ';' before 'T'
   12 |       cout << S[i]T[i];
      |                   ^
      |                   ;
Language: Java

import java.util.Scanner;
public class SameLengthB {

	public static void main(String[] args) {

		Scanner scan = new Scanner(System.in);

		int nagasa = scan.nextInt();
		String moziS = scan.next();
		String moziT = scan.next();
		String[] newmozi = new String[nagasa*2];
		String re = "";


		for(int i=0;i<nagasa;i++) {

			newmozi[i] = moziS.substring(i,i+1) + moziT.substring(i,i+1);
			re += newmozi[i];
		}

		System.out.println(re);
		scan.close();

	}

}


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

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

int main() {
  int N;
  cin >> N;
  string s, t;
  cin >> s >> t;
  string u = "";
  for (int i = 0; i < N; i++) {
    u += (char)s[i];
    u+= (char)t[i]
  }
  cout << u << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:19: error: expected ';' before '}' token
   12 |     u+= (char)t[i]
      |                   ^
      |                   ;
   13 |   }
      |   ~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
	int n;
 string t;
  string s;
  cin >> n;
  cin >> s >> t;
  for(int i = 0; i < n; i=i+2){
		for(int j = 1; j < n; j = j + 2){
          	cout << s.at(i),t.at(j) << endl;
        }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:41: error: invalid operands of types '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} and '<unresolved overloaded function type>' to binary 'operator<<'
   11 |                 cout << s.at(i),t.at(j) << endl;
      |                                 ~~~~~~~~^~~~~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(void){
	int n;
 string t;
  string s;
  cin >> n;
  cin >> s >> t;
  for(int i = 0; i < n; i=i+2){
		for(int j = 1; j < n; j = j + 2){
          	cout << s.at(i)t.at(j) << endl;
        }
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:32: error: expected ';' before 't'
   11 |                 cout << s.at(i)t.at(j) << endl;
      |                                ^
      |                                ;
Language: C++

#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep1(i, n) for (int i = 1; i <= (int)(n); i++)

int  main()
{
	int n; cin >> n;
	string s,t; cin >> s >> t;

	rep(i, n)
	{
		cout << s[i];
		cout << t[i];
	}
	cout << endl;
	return (0);
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:16: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    7 |         int n; cin >> n;
      |                ^~~
      |                std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:146,
                 from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:8:9: error: 'string' was not declared in this scope
    8 |         string s,t; cin >> s >> t;
      |         ^~~~~~
a.cc:8:9: note: suggested alternatives:
In file included from /usr/include/c++/14/string:41,
                 from /usr/include/c++/14/bitset:52,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:52:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:8:28: error: 's' was not declared in this scope
    8 |         string s,t; cin >> s >> t;
      |                            ^
a.cc:8:33: error: 't' was not declared in this scope
    8 |         string s,t; cin >> s >> t;
      |                                 ^
a.cc:12:17: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   12 |                 cout << s[i];
      |                 ^~~~
      |                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:15:9: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   15 |         cout << endl;
      |         ^~~~
      |         std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:15:17: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   15 |         cout << endl;
      |                 ^~~~
      |                 std::endl
In file included from /usr/include/c++/14/istream:41,
                 from /usr/include/c++/14/sstream:40,
                 from /usr/include/c++/14/complex:45,
                 from /usr/include/c++/14/ccomplex:39,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:127:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <regex>
#include <set>
#include <cmath>
#include <sstream>
#include <numeric>
#include <set>

using namespace std;

int main()
{
    std::string a, b;
    std::cin >> a >> b;

    std::stringstream ss;
    int i = 0;
    while(true)
    {
        if(i < a.size())
        ss << a[i]
        if(i < b.size())
        ss << b[i];

        if(i >= a.size() && i > b.size())
            break;
    }
    std::cout << ss.str();
    return EXIT_SUCCESS;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:24:19: error: expected ';' before 'if'
   24 |         ss << a[i]
      |                   ^
      |                   ;
   25 |         if(i < b.size())
      |         ~~
Language: C++

#include<bits/stdc++.h>
#include<cstdlib>
#include<cmath>
using namespace std;
int main(){
int N; cin>>N;
  string S; cin>>S;
  string T; cin>>T;
  string U;
  for(int i=0; i<N; i++;){
    if(i%2==0)
      U.at(i)=S.at(i/2);
    else U.at(i)=T.at((i-1)/2);
  }
  cout<<U<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:24: error: expected ')' before ';' token
   10 |   for(int i=0; i<N; i++;){
      |      ~                 ^
      |                        )
a.cc:10:25: error: expected primary-expression before ')' token
   10 |   for(int i=0; i<N; i++;){
      |                         ^
Language: Java

import java.util.*;
import java.math.*;
public class Solution {
	public static void main(String[] args) {
		Scanner in = new Scanner(System.in);
		String s = in.next();
		String t = in.next();
		for(int i = 0; i < s.length(); i++) {
			System.out.print(s.charAt(i) + t.charAt(i));
		}
		System.out.print("\n");
	}
}

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

#include <iostream>
#include <string>

using namespace std;

int main(){
  int n;
  string S;
  string T;
  cin >> n>> string S>> string T;
  
  for(int i=0; i<n; ++i)
    cout << S[i]<< T[i];
  
 return 0; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:21: error: expected primary-expression before 'S'
   10 |   cin >> n>> string S>> string T;
      |                     ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  ios_base::sync_wtih_stdio(0);
  cin.tie(0);
  int n;
  cin>>n;
  string s,t,f;
  cin>>s>>t;
  for(int i=0;i<n;i++)
  {
    f.push_back(s[i]);
    f.push_back(t[i]);
  }
  cout<<f;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:13: error: 'sync_wtih_stdio' is not a member of 'std::ios_base'
    5 |   ios_base::sync_wtih_stdio(0);
      |             ^~~~~~~~~~~~~~~
Language: C++

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

int main() {
  int N;
  string S, T
  cin >> N >> S >> T;
  
  for (int i = 0; i < N; i++) {
    cout << S[i] << T[i];
  }
  cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:3: error: expected initializer before 'cin'
    7 |   cin >> N >> S >> T;
      |   ^~~
a.cc:10:21: error: 'T' was not declared in this scope
   10 |     cout << S[i] << T[i];
      |                     ^
Language: C

#include<stdio.h>
int main()
  { 
    int N;
    scanf("%d",&N);
    char S[N];
    char T[N];
    scanf("%s",S);
    scanf("%s",T);
    for(i=0;i<=N-1;i++)
      { 
         printf("%s",S[i]);
         printf("%s",T[i]);
      }
  return 0;
  }

Compiler output:
main.c: In function 'main':
main.c:10:9: error: 'i' undeclared (first use in this function)
   10 |     for(i=0;i<=N-1;i++)
      |         ^
main.c:10:9: note: each undeclared identifier is reported only once for each function it appears in
Language: C++

#include <iostream>
using namespace std;

int main (){
  string s,t;
  cin >> s >> t;
  for (int i=0;i<n;i++) {
    cout << s[i];
    if(i<n) cout << t[i];
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: 'n' was not declared in this scope
    7 |   for (int i=0;i<n;i++) {
      |                  ^
Language: C++

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

int main(){
  int n;
  cin >> n;
  string s,t;
  cin >> s >> t;
  for (int i=0;i<n;++i){
   string st=s[i]+t[i];
   cout << st << endl;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:18: error: conversion from 'int' to non-scalar type 'std::string' {aka 'std::__cxx11::basic_string<char>'} requested
   10 |    string st=s[i]+t[i];
Language: C++

#include <bits/stdc++.h>using namespace std;int main() {int N,i=0 ;	string S, T;cin >>N>>S>>T;	while (i < N) {cout << S.at(i) << T.at(i);i++;}}


Compiler output:
a.cc:1:31: warning: extra tokens at end of #include directive
    1 | #include <bits/stdc++.h>using namespace std;int main() {int N,i=0 ;     string S, T;cin >>N>>S>>T;      while (i < N) {cout << S.at(i) << T.at(i);i++;}}
      |                               ^~~~~~~~~
a.cc:1:10: fatal error: bits/stdc++.h>usin: No such file or directory
    1 | #include <bits/stdc++.h>using namespace std;int main() {int N,i=0 ;     string S, T;cin >>N>>S>>T;      while (i < N) {cout << S.at(i) << T.at(i);i++;}}
      |          ^~~~~~~~~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
string s,t;
long long counter=0;
cin>>s>>t;
   for (long long a = 1; a < s.size(); a++) {
     cout<<s.at(i)<<t.at(i);
        }
}
  


Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: 'i' was not declared in this scope
    8 |      cout<<s.at(i)<<t.at(i);
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  int N;
  str S,T;
  cin >> N >> S >> T;
  for(int i = 0; i < N; i++){
    cout << S.at(i) << T.at(i);
  }
  cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'str' was not declared in this scope; did you mean 'std'?
    5 |   str S,T;
      |   ^~~
      |   std
a.cc:6:15: error: 'S' was not declared in this scope
    6 |   cin >> N >> S >> T;
      |               ^
a.cc:6:20: error: 'T' was not declared in this scope
    6 |   cin >> N >> S >> T;
      |                    ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int n;
  scanf("%d",n);
  scanf("%s%s",s,t);
  for(int i=0;i<n;i++){
  printf("%c%c",s[i],t[i]);
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:16: error: 's' was not declared in this scope
    6 |   scanf("%s%s",s,t);
      |                ^
a.cc:6:18: error: 't' was not declared in this scope
    6 |   scanf("%s%s",s,t);
      |                  ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main() {
  int a,b;
  cin>>a>>b;
  int gcd(a,b);
  
  cout<<a/gcd(a,b)*b<<endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:14: error: expression list treated as compound expression in initializer [-fpermissive]
    6 |   int gcd(a,b);
      |              ^
a.cc:8:14: error: 'gcd' cannot be used as a function
    8 |   cout<<a/gcd(a,b)*b<<endl;
      |           ~~~^~~~~
Language: C++

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

int main(){
  int N;
  cin>>N;
  string S,T;
  string u;
  cin>>S;
  cin>>T;
  for(int i=0;i<2N;i++){
    if((i+1)%2==1){
      u.at(i)=S.at((i+2)/2);
    }
    else {
      u.at(i)=S.at(i/2);
    }
  }
  cout<<u<<endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:17: error: unable to find numeric literal operator 'operator""N'
   12 |   for(int i=0;i<2N;i++){
      |                 ^~
Language: C++

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

int main(){
  int N;
  cin>>N;
  stirng S,T;
  string u;
  cin>>S;
  cin>>T;
  for(int i=0;i<2N;i++){
    if((i+1)%2==1){
      u.at(i)=S.at((i+2)/2);
    }
    else {
      u.at(i)=S.at(i/2);
    }
  }
  cout<<u<<endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'stirng' was not declared in this scope
    8 |   stirng S,T;
      |   ^~~~~~
a.cc:10:8: error: 'S' was not declared in this scope
   10 |   cin>>S;
      |        ^
a.cc:11:8: error: 'T' was not declared in this scope
   11 |   cin>>T;
      |        ^
a.cc:12:17: error: unable to find numeric literal operator 'operator""N'
   12 |   for(int i=0;i<2N;i++){
      |                 ^~
Language: C++

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

int main(){
  int N;
  cin>>N;
  stirng S,T;
  string u;
  rep(i,N) cin>>S.at(i);
  rep(i,N) cin>>T.at(i);
  for(int i=0;i<2N;i++){
    if((i+1)%2==1){
      u.at(i)=S.at((i+2)/2);
    }
    else {
      u.at(i)=S.at(i/2);
    }
  }
  cout<<u<<endl;

  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'stirng' was not declared in this scope
    8 |   stirng S,T;
      |   ^~~~~~
a.cc:10:17: error: 'S' was not declared in this scope
   10 |   rep(i,N) cin>>S.at(i);
      |                 ^
a.cc:11:17: error: 'T' was not declared in this scope
   11 |   rep(i,N) cin>>T.at(i);
      |                 ^
a.cc:12:17: error: unable to find numeric literal operator 'operator""N'
   12 |   for(int i=0;i<2N;i++){
      |                 ^~
a.cc:14:15: error: 'S' was not declared in this scope
   14 |       u.at(i)=S.at((i+2)/2);
      |               ^
a.cc:17:15: error: 'S' was not declared in this scope
   17 |       u.at(i)=S.at(i/2);
      |               ^
Language: C++

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

int main(){
  int N;
  cin>>N;
  stirng S,T;
  string u;
  rep(i,N) cin>>S[i];
  rep(i,N) cin>>T[i];
  for(int i=0;i<2N;i++){
    if((i+1)%2==1){
      u.at(i)=S.at((i+2)/2);
    }
    else {
      u.at(i)=S.at(i/2);
    }
  }
  cout<<u<<endl;

  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:3: error: 'stirng' was not declared in this scope
    8 |   stirng S,T;
      |   ^~~~~~
a.cc:10:17: error: 'S' was not declared in this scope
   10 |   rep(i,N) cin>>S[i];
      |                 ^
a.cc:11:17: error: 'T' was not declared in this scope
   11 |   rep(i,N) cin>>T[i];
      |                 ^
a.cc:12:17: error: unable to find numeric literal operator 'operator""N'
   12 |   for(int i=0;i<2N;i++){
      |                 ^~
a.cc:14:15: error: 'S' was not declared in this scope
   14 |       u.at(i)=S.at((i+2)/2);
      |               ^
a.cc:17:15: error: 'S' was not declared in this scope
   17 |       u.at(i)=S.at(i/2);
      |               ^
Language: C++

#include<stdio.h>
char s[110];
char t[110];
int main(void){
  int a;
  scanf("%d",&a);
  scanf("%s %s",s,t);
  for(int loop=0;loop<a;loop++){
    printf("%c%c",s[i],t[i]);
  }
  putchar('\n');
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:21: error: 'i' was not declared in this scope
    9 |     printf("%c%c",s[i],t[i]);
      |                     ^
Language: C++

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

int main() {
  int N;
  stirng S, T;
  cin >> N >> S >> T ;
  
  for (int i = 0; i < N; i++) {
    cout << S[i] << T[i];
  }
  
  cout << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'stirng' was not declared in this scope
    9 |   stirng S, T;
      |   ^~~~~~
a.cc:10:15: error: 'S' was not declared in this scope
   10 |   cin >> N >> S >> T ;
      |               ^
a.cc:10:20: error: 'T' was not declared in this scope
   10 |   cin >> N >> S >> T ;
      |                    ^
Language: Java

import java.util.*;
import java.lang.*;
import java.io.*;

class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner io = new Scanner(System.in);
		int n = io.nextInt();
		char[] a = io.next().toCharArray(), char[] b = io.next().toCharArray();
		for(int i = 0; i < n; i++)
			System.out.print(a[i]+""+b[i]);
		System.out.println();
	}
}

Compiler output:
Main.java:11: error: <identifier> expected
		char[] a = io.next().toCharArray(), char[] b = io.next().toCharArray();
		                                   ^
1 error
Language: C++

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
import java.util.Collection;
import java.util.Collections;
import java.util.List;

public class Main{
    public static Scanner scan  = new Scanner(System.in);
    public static void main(String[]args){
        int n;
        String s,t;

        n=nextInt();
        s=next();
        t=next();
        char[] arr = new char[2*n];
        for(int i=0;i<n;i++){
            arr[2*i]=s.charAt(i);
            arr[2*i+1]=t.charAt(i);
        }
        for(char a:arr){
            System.out.printf("%c",a);
        }
    }



    public static int nextInt(){
        return Integer.parseInt(scan.next());
    }
    public static long nextLong(){
        return Long.parseLong(scan.next());
    }
    public static String next(){
        return scan.next();
    }
    public static double nextDouble(){
        return Double.parseDouble(scan.next());
    }
    public static float nextFloat(){
        return Float.parseFloat(scan.next());
    }

    //Yes or No
    public static void yesNo(boolean flag){
        if(flag) System.out.println("Yes");
        else System.out.println("No");
    }
    public static void print(Object a){
        System.out.println(a);
    }
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.util.ArrayList;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.Arrays;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: 'import' does not name a type
    3 | import java.util.Scanner;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:1: error: 'import' does not name a type
    4 | import java.util.Collection;
      | ^~~~~~
a.cc:4:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:1: error: 'import' does not name a type
    5 | import java.util.Collections;
      | ^~~~~~
a.cc:5:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:6:1: error: 'import' does not name a type
    6 | import java.util.List;
      | ^~~~~~
a.cc:6:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:8:1: error: expected unqualified-id before 'public'
    8 | public class Main{
      | ^~~~~~
Language: C

#include<stdio.h>
int main(void){
    int n, i, j;
    scanf("%d",&n);
    char s[n], t[n], h[201];
    scanf("%s%s",&s,&t);
    h[0]=s[0];
    for(i=1;i<n;i++){
        h[i*2-1] = t[i-1];
        h[i*2] = s[i];
    }
    h[2*n-1] = t[n-1];
    h[2*n] = '\0'
    printf("%s\n",h);
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:13:18: error: expected ';' before 'printf'
   13 |     h[2*n] = '\0'
      |                  ^
      |                  ;
   14 |     printf("%s\n",h);
      |     ~~~~~~
Language: C++

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

int main(){
    Int N;
    string S, T;
    cin>> N >> S >>T;
    for (int i = 0; i < N; i++)
    {
        cout << S.at(i) << T.at(i);
    }
    cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'Int' was not declared in this scope; did you mean 'int'?
    5 |     Int N;
      |     ^~~
      |     int
a.cc:7:11: error: 'N' was not declared in this scope
    7 |     cin>> N >> S >>T;
      |           ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main()
{ 
   int n,cnt=1;
  scanf("%d",&n);
  
   string s,st;
   cin>>s>>t;
   int i,j;
   
  for(i=0,j=0;i<n;)
  {
     if(cnt%2!=0)
     { cout<<s[i];
         i++;
     }
    
     else
     {
       cout<<t[j];
       j++;
     }
    
    cnt++;
  }
    
   
  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:12: error: 't' was not declared in this scope; did you mean 'st'?
   11 |    cin>>s>>t;
      |            ^
      |            st
Language: C++

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

int main(){
  int n;
  string s,t,ans;
  cin >> n >> s >> t;
  for(int i=0;i<2*n;i++++){
    ans.at(i)=s.at(i);
    ans.at(i+1)=t.at(i);
  }
  cout << ans << endl;
  return 0;
}
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:8:22: error: lvalue required as increment operand
    8 |   for(int i=0;i<2*n;i++++){
      |                     ~^~
Language: C++

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

int main(){
  int n;
  string s,t,ans;
  cin >> n >> s >> t;
  for(int i=0;i<2n;i+2){
    ans.at(i)=s.at(i);
    ans.at(i+1)=s.at(i);
  }
  cout << ans << endl;
  return 0;
}
  
  


Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: unable to find numeric literal operator 'operator""n'
    8 |   for(int i=0;i<2n;i+2){
      |                 ^~
Language: Java

N = int(input())
S, T = input().split()

ans = ''

for  i in range(N):
    ans += S[i] + T[i]

print(ans)

Compiler output:
Main.java:1: error: class, interface, enum, or record expected
N = int(input())
^
Main.java:4: error: empty character literal
ans = ''
      ^
2 errors
Language: C++

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

int32_t main()
{
  int n; cin>>n;
  string s,t; cin>>s>>t;
  for(int i = 0 ; i< n; i++) cout<<s[i]<<t[i];
}
//cout<<ans;
return 0;
}


Compiler output:
a.cc:12:1: error: expected unqualified-id before 'return'
   12 | return 0;
      | ^~~~~~
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: C++

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

int32_t main()
{
  int n; cin>>n;
  string s,t; cin>>s>>t;
  for(int i = 0 ; i< n; i++) cout<<s[i]<<t[i];
}
cout<<ans;
return 0;
}


Compiler output:
a.cc:11:1: error: 'cout' does not name a type
   11 | cout<<ans;
      | ^~~~
a.cc:12:1: error: expected unqualified-id before 'return'
   12 | return 0;
      | ^~~~~~
a.cc:13:1: error: expected declaration before '}' token
   13 | }
      | ^
Language: Java

import java.util.Scanner;
class Main{
  public static void main(String[] args){
    int N = sc.nextInt();
    char[] S = sc.next().toCharArray();
    char[] T = sc.next().toCharArray();
    StringBuilder sb = new StringBuilder();
    for(int i=0; i<N; i++){
      sb.append(S[i]);
      sb.append(T[i]);
    }
    System.out.print(sb.toString());
  }
}
      

Compiler output:
Main.java:4: error: cannot find symbol
    int N = sc.nextInt();
            ^
  symbol:   variable sc
  location: class Main
Main.java:5: error: cannot find symbol
    char[] S = sc.next().toCharArray();
               ^
  symbol:   variable sc
  location: class Main
Main.java:6: error: cannot find symbol
    char[] T = sc.next().toCharArray();
               ^
  symbol:   variable sc
  location: class Main
3 errors
Language: C++


#include <iostream>
#include <string>
 
void func148b()
{
    int n;
    string s,t;
    cin >> n >> s >> t;
    for (int i = 0; i < n; ++i) cout << s[i] << t[i];
    cout << endl;
    
}
 
int main()
{
  func148b();
  return 0;
}

Compiler output:
a.cc: In function 'void func148b()':
a.cc:8:5: error: 'string' was not declared in this scope
    8 |     string s,t;
      |     ^~~~~~
a.cc:8:5: note: suggested alternatives:
In file included from /usr/include/c++/14/iosfwd:41,
                 from /usr/include/c++/14/ios:40,
                 from /usr/include/c++/14/ostream:40,
                 from /usr/include/c++/14/iostream:41,
                 from a.cc:2:
/usr/include/c++/14/bits/stringfwd.h:77:33: note:   'std::string'
   77 |   typedef basic_string<char>    string;
      |                                 ^~~~~~
In file included 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:
/usr/include/c++/14/string:76:11: note:   'std::pmr::string'
   76 |     using string    = basic_string<char>;
      |           ^~~~~~
a.cc:9:5: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    9 |     cin >> n >> s >> t;
      |     ^~~
      |     std::cin
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:9:17: error: 's' was not declared in this scope
    9 |     cin >> n >> s >> t;
      |                 ^
a.cc:9:22: error: 't' was not declared in this scope
    9 |     cin >> n >> s >> t;
      |                      ^
a.cc:10:33: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   10 |     for (int i = 0; i < n; ++i) cout << s[i] << t[i];
      |                                 ^~~~
      |                                 std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:11:5: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
   11 |     cout << endl;
      |     ^~~~
      |     std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:11:13: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
   11 |     cout << endl;
      |             ^~~~
      |             std::endl
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include "stdafx.h" //プリインクルードされている場合はコメントアウト
#include <iostream>
#include <string>

void func148b()
{
    int n;
    string s,t;
    cin >> n >> s >> t;
    for (int i = 0; i < n; ++i) cout << s[i] << t[i];
    cout << endl;
    
}

int main()
{
  func148b();
  return 0;
}

Compiler output:
a.cc:1:10: fatal error: stdafx.h: No such file or directory
    1 | #include "stdafx.h" //プリインクルードされている場合はコメントアウト
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

#define _GLIBCXX_DEBUG
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define rep(i,N) for(int i = 0;i < (int)(N);i++)
int main(){
  int n;
  string s,t;
  cin>>s>>t;
  vector<string>a(n);
  rep(i,n) a[i]=s[i]t[i];
  rep(i,n) cout<<a[i];
}
  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:21: error: expected ';' before 't'
   11 |   rep(i,n) a[i]=s[i]t[i];
      |                     ^
      |                     ;
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <ctime>
#include <functional>
#include <vector>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <cassert>
#include <bitset>
#include <list>
#include <cstdio>
#include <stdio.h>
#include <string.h>

typedef long long ll;

using namespace std;

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);
    int n;
    string s, t;
    cin >> n >> s >> t;
    for(int i<n; i++)
    {
        cout << s[i] << t[i];
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:14: error: expected ';' before '<' token
   29 |     for(int i<n; i++)
      |              ^
      |              ;
a.cc:29:14: error: expected primary-expression before '<' token
Language: Java

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        String s = sc.next();
        String t = sc.next();
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i< n ; ++) {
            sb.append(s.charAt(i));
            sb.append(t.charAt(i));
        }
        System.out.println(sb.toString());
    }
}


Compiler output:
Main.java:10: error: illegal start of expression
        for (int i = 0; i< n ; ++) {
                                 ^
1 error
Language: C++

#include <iostream>
#include <string>
#include <algorithm>
#include <vector>
#include <math.h>


using namespace std;

int main()
{
  int n;
  string s, t;
  cin >> n;
  cin >> s;
  cin >> t;
  for( int i=0; i < n; ++i)
    cout << s[i] << t[i];
  cout << "\n";
  return 0;

Compiler output:
a.cc: In function 'int main()':
a.cc:20:12: error: expected '}' at end of input
   20 |   return 0;
      |            ^
a.cc:11:1: note: to match this '{'
   11 | {
      | ^
Language: C++

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

int main(){

  int N;
  string S,T,U;
  cin >> N >> S >> T;

  for(int i=0;i<N;I++){
   U+=S[i]+T[i];
  }
  
  cout << U << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:19: error: 'I' was not declared in this scope
   10 |   for(int i=0;i<N;I++){
      |                   ^
Language: Java

import java.util.Scanner;
import java.util.Arrays;
class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int n = sc.nextInt();
    char[] s = sc.next().toCharArray();
    char[] t = sc.next().toCharArray();
    char[] u = new char[n * 2];
    for(int i = 0; i < n; i++){
      u[2 * i] = s[i];
      u[2 * i + 1] = t[i];
    }
    System.out.println(String.valueOf(u));

  }

Compiler output:
Main.java:16: error: reached end of file while parsing
  }
   ^
1 error
Language: C++

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

int main(){
  int n;
  string s,t;
  cin >> n ;
  cin >> s >> t;
  for(int i=0;i<n;i++){
    cout << s[i] << t[i];
  }

}å

Compiler output:
a.cc:13:2: error: '\U000000e5' does not name a type
   13 | }å
      |  ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
int main(){
  int n,i;
  cin>>n;
  string s,t;
  rep(i,n) cin>>s;
  rep(i,n) cin>>t;
  string str;
  rep(i,n){
    int k=i/2;
    str[2k+1]=s[i];
    str[2k]=t[i];
  }
  cout<<str<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: fixed-point types not supported in C++
   13 |     str[2k+1]=s[i];
      |         ^~
a.cc:14:9: error: fixed-point types not supported in C++
   14 |     str[2k]=t[i];
      |         ^~
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
int main(){
  int n,i;
  cin>>n;
  string s,t;
  rep(i,n) cin>>s;
  rep(i,n) cin>>t;
  string str;
  rep(i,n){
    k=i/2;
    str[2k+1]=s[i];
    str[2k]=t[i];
  }
  cout<<str<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:5: error: 'k' was not declared in this scope
   12 |     k=i/2;
      |     ^
a.cc:13:9: error: fixed-point types not supported in C++
   13 |     str[2k+1]=s[i];
      |         ^~
a.cc:14:9: error: fixed-point types not supported in C++
   14 |     str[2k]=t[i];
      |         ^~
Language: C++

#include<iostream>
#include<vector>

using namespace std;

int main(){
  
  int n;
  cin >> n;
  vector<char> a(n), b(n);
  for(i=0; i<n; i++){
    cout << a.at(i) << b.at(i);
  }
  cout << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: 'i' was not declared in this scope
   11 |   for(i=0; i<n; i++){
      |       ^
Language: C++

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

int main() {
int n;
cin >> n;
string s;
string t;
cin >>s>>t;
for(int i=0;i<n;i++){
    cout <<s.at(i)<<t.at(i)
}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:28: error: expected ';' before '}' token
   11 |     cout <<s.at(i)<<t.at(i)
      |                            ^
      |                            ;
   12 | }
      | ~
Language: C++

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

int main() {
int n;
cin >> n;
string s;
string t;
cin >>s>>t;
for(int i=0;i<n,i++){
    cout <<s.at(i)<<t.at(i)
}
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:20: error: expected ';' before ')' token
   10 | for(int i=0;i<n,i++){
      |                    ^
      |                    ;
a.cc:11:28: error: expected ';' before '}' token
   11 |     cout <<s.at(i)<<t.at(i)
      |                            ^
      |                            ;
   12 | }
      | ~
Language: C++

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



int main(){
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    int n;
    string s,t;
    cin >> n >> s >> t;
    string ans;
    rep(i,0,n){
        x += s[i] + t[i];
    }
    cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:9: error: 'x' was not declared in this scope
   16 |         x += s[i] + t[i];
      |         ^
Language: C++

#include <iostream>
#include <string>
using namespace std;
int main() {
  int N;
  string S, T;
  cin >> N;
  cin >> S >> T;
  for (int i=0; i<N; i++) {
    cout << S[i] << T[i]
  }
  cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:25: error: expected ';' before '}' token
   10 |     cout << S[i] << T[i]
      |                         ^
      |                         ;
   11 |   }
      |   ~
Language: Java

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
      int N = sc.nextInt();
      String S = sc.next();
      String T = sc.next();
      StringBuilder bld = new StringBuilder();
      for(int i=0;i<N*2;i++){
        if(N % 2 == 0){
          bld.append(S.charAt(i/2));
        }else{
          bld.append(T.charAt(i/2));
        }
      System.out.println(bld.toString());
    }
}

Compiler output:
Main.java:18: error: reached end of file while parsing
}
 ^
1 error
Language: Java

import java.util.Scanner;

public class ABC148C {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
      int N = sc.nextInt();
      String S = sc.next();
      String T = sc.next();
      StringBuilder bld = new StringBuilder();
      for(int i=0;i<N*2;i++){
        if(N % 2 == 0){
          bld.append(S.charAt(i/2));
        }else{
          bld.append(T.charAt(i/2));
        }
      System.out.println(bld.toString());
    }
}

Compiler output:
Main.java:18: error: reached end of file while parsing
}
 ^
1 error
Language: C++

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

    char S[110];
    char T[110];



    int main()
    {
        int a;scanf("%d", &a );
        scanf("%s%s", S, T);
        for (int i = 0; i < a; ++i)
        {
            printf("%c%c", S[i], T[i]);

        };
        printf("\n" )
        return 0;
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:19:22: error: expected ';' before 'return'
   19 |         printf("\n" )
      |                      ^
      |                      ;
   20 |         return 0;
      |         ~~~~~~
Language: C++

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

    char S[110];
    char T[110];



    int main()
    {
        int a;scanf("%d", &a );
        scanf("%s%s", S, T);
        for (int i = 0; i < a; ++i)
        {
            printf("%c%c", S[i], T[i]);
            printf("\n" )
        };
        return 0;
    }


Compiler output:
a.cc: In function 'int main()':
a.cc:17:26: error: expected ';' before '}' token
   17 |             printf("\n" )
      |                          ^
      |                          ;
   18 |         };
      |         ~