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

#include <iostream>
#include <stdio.h>

using namespace std;

int main(){
  string s;
  cin >> s;

  for(int i = 0; i < s.length(); ++i) {
    cout << x;
  }

  cout << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: 'x' was not declared in this scope
   11 |     cout << x;
      |             ^
Language: C++

#include<cstdio>
#include<iostream>
#include<cstring>
#include<string>
#include<cmath>
#include<algorithm>
#include<iomanip>
#include<queue>
#define maxn 1000003
using namespace std;
struct A{
	char color[maxn];
	int num;
};
char tcolor[maxn] = {0};
int main(){
	cin >> tcolor;
	for(i = 0; i < strlen(tcolor); i++){
		cout << "x";
	}
	return 0;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:18:13: error: 'i' was not declared in this scope
   18 |         for(i = 0; i < strlen(tcolor); i++){
      |             ^
Language: C++

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

int main() {
  string s;
  cin >> s;
  string S;
  for(int i = 0; i<s.size(); i++) {
    S.at(i) = "x";
  }
  cout << S <<endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
    9 |     S.at(i) = "x";
      |               ^~~
      |               |
      |               const char*
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
string s;
int main(){
cin>>s;
for(int i=0;i<s.length();i++){
s[i]=x;
}
cout<<s<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:6: error: 'x' was not declared in this scope
    8 | s[i]=x;
      |      ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  string s;
  cin >> s;
  size_t size = s.length();
  for (int i=0,i<size,i++){
    cout << "x";
  }
  cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:17: error: expected ';' before '<' token
    8 |   for (int i=0,i<size,i++){
      |                 ^
      |                 ;
a.cc:8:17: error: expected primary-expression before '<' token
a.cc:8:26: error: expected ';' before ')' token
    8 |   for (int i=0,i<size,i++){
      |                          ^
      |                          ;
Language: C++

#include<stdio.h>
#include<string.h>
char c[105];
int main()
{
	int i,lenc;
	gets(c);
	lenc=strlen(c);
	for(i=1;i<=lenc;i++)
	printf("x");
	
} 

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(c);
      |         ^~~~
      |         getw
Language: C++

#include <algorithm>
#include <assert.h>
#include <bitset>
#include <cfloat>
#include <complex>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <limits.h>
#include <list>
#include <map>
#include <math.h>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <string.h>
#include <time.h>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#define rep(i,n) for(int i = 0;i < n; i++)
#define REP(i,n) for(int i = 1;i <= n; i++)
#define ll long long
using namespace std;



int main(){

    int a;
    string S;

    cin >> S;

    a = S.size()

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

        cout << "x";
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:17: error: expected ';' before 'for'
   39 |     a = S.size()
      |                 ^
      |                 ;
   40 | 
   41 |     for(int i = 0;i < a;i ++){
      |     ~~~          
a.cc:41:19: error: 'i' was not declared in this scope
   41 |     for(int i = 0;i < a;i ++){
      |                   ^
Language: C++

#include<iostream>
#include<algorithm>
#include<string>
#include<cstdio>
#include<cstring>
using namespace std;
const int N = 1e6+5;
char s[105];
int main(){
	gets(s);
	int len = strlen(s);
	for(int i = 1; i <= len; i++)
		cout << "x";
	cout << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   10 |         gets(s);
      |         ^~~~
      |         getw
Language: C++

#include <algorithm>
#include <assert.h>
#include <bitset>
#include <cfloat>
#include <complex>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <limits.h>
#include <list>
#include <map>
#include <math.h>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <string.h>
#include <time.h>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#define rep(i,n) for(int i = 0;i < n; i++)
#define REP(i,n) for(int i = 1;i <= n; i++)
#define ll long long
using namespace std;



int main(){

    int a;
    string S;

    cin >> S;

    a = S.size();

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

        cout << x;
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:43:17: error: 'x' was not declared in this scope
   43 |         cout << x;
      |                 ^
Language: C++

#include <algorithm>
#include <cassert>
#include <cctype>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstring>
#include <deque>
#include <functional>
#include <iomanip>
#include <iostream>
#include <map>
#include <numeric>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <tuple>
#include <vector>
#include <list>
#define rep(i, n) for (int i = 0; i < (int)(n); ++i)
//#define cerr if(false) cerr
#ifdef DEBUG
#define show(...) cerr << #__VA_ARGS__ << " = ", debug(__VA_ARGS__);
#else
#define show(...) 42
#endif
using namespace std;
using ll = long long;
using pii = pair<int, int>;
template <typename T, typename S>
ostream& operator<<(ostream& os, pair<T, S> a) {
    os << '(' << a.first << ',' << a.second << ')';
    return os;
}
template <typename T>
ostream& operator<<(ostream& os, vector<T> v) {
    for (auto x : v) os << x << ' ';
    return os;
}
void debug() {
    cerr << '\n';
}
template <typename H, typename... T>
void debug(H a, T... b) {
    cerr << a;
    if (sizeof...(b)) cerr << ", ";
    debug(b...);
}
int main(){
    string s;
    cin >> s;
    rep(i,s.size())cout << "x";
    cout << Endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:56:13: error: 'Endl' was not declared in this scope
   56 |     cout << Endl;
      |             ^~~~
Language: C++

#include <iostream>
using namespace std;


int main(){
    string str;

    cin >> str;

    for (int i=0; i<str.length(); i++){
        str[i]=x;
    }

    cout << str <<endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: 'x' was not declared in this scope
   11 |         str[i]=x;
      |                ^
Language: C++

#include <iostream>
#include <string>

using namespace std;

int main(){
  
  string a;
  
  cin >> a;
  
  int len = a.length()
    
  string answer = "";
  
  for(int i = 0; i < len; i++){
    answer += "x";
  }
  
  cout << answer << endl;
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:3: error: expected ',' or ';' before 'string'
   14 |   string answer = "";
      |   ^~~~~~
a.cc:17:5: error: 'answer' was not declared in this scope
   17 |     answer += "x";
      |     ^~~~~~
a.cc:20:11: error: 'answer' was not declared in this scope
   20 |   cout << answer << endl;
      |           ^~~~~~
Language: C++

#include <algorithm>
#include <assert.h>
#include <bitset>
#include <cfloat>
#include <complex>
#include <deque>
#include <fstream>
#include <functional>
#include <iomanip>
#include <iostream>
#include <limits.h>
#include <list>
#include <map>
#include <math.h>
#include <queue>
#include <random>
#include <set>
#include <stack>
#include <string>
#include <string.h>
#include <time.h>
#include <unordered_map>
#include <unordered_set>
#include <vector>
#define rep(i,n) for(int i = 0;i < n; i++)
#define REP(i,n) for(int i = 1;i <= n; i++)
#define ll long long
using namespace std;



int main(){

    int a;
    string S;

    cin >> S;

    a = S.size()

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

        cout << x;
    }

    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:39:17: error: expected ';' before 'for'
   39 |     a = S.size()
      |                 ^
      |                 ;
   40 | 
   41 |     for(int i = 0;i < a;i ++){
      |     ~~~          
a.cc:41:19: error: 'i' was not declared in this scope
   41 |     for(int i = 0;i < a;i ++){
      |                   ^
Language: C

#include <bits/stdc++.h>

char s[100];
int i=0,j=0;

scanf(s,&s[]);

for(,i<=100,i++){
	if(s[i]=0){j=i;}
}

for(,j=0,j--){
	printf("x");
}

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;
int main() {
  string s;
  int a =s.size()
    for(int i = 0;i<=a;i++){cout << 'x'}
  return 0
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: expected ',' or ';' before 'for'
    6 |     for(int i = 0;i<=a;i++){cout << 'x'}
      |     ^~~
a.cc:6:19: error: 'i' was not declared in this scope
    6 |     for(int i = 0;i<=a;i++){cout << 'x'}
      |                   ^
a.cc:7:11: error: expected ';' before '}' token
    7 |   return 0
      |           ^
      |           ;
    8 | }
      | ~
Language: C++

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

int main(){
  string S;
  cin >> S;
  int i=0;
  while(True){
    if(i==len(S)){
      break;
    }
    S[i]='x';
  }
  cout << S << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:9: error: 'True' was not declared in this scope
    9 |   while(True){
      |         ^~~~
a.cc:10:11: error: 'len' was not declared in this scope; did you mean 'mblen'?
   10 |     if(i==len(S)){
      |           ^~~
      |           mblen
Language: C++

#include<bits/stdc++.h>
using namespace std;
char c[105];
int main()
{
	int i;
	gets(c);
	int lenc=strlen(c);
	for(i=1;i<=lenc;i++)
	printf("x");
	
} 

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(c);
      |         ^~~~
      |         getw
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define ll long long int
int main()
{

  //ll t;
  //cin>>t;
  //while(t--)
  string s;
  cin>>s;
  for(i=0;i<s.size();i++)
    cout<<'x';
  cout<<endl;
return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:7: error: 'i' was not declared in this scope
   12 |   for(i=0;i<s.size();i++)
      |       ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  string s;
  cin >> s;
  size_t size = s.length();
  int i = 0;
  for (i==0,i<size,i++){
    cout << "x";
  }
  cout << endl;

Compiler output:
a.cc: In function 'int main()':
a.cc:9:23: error: expected ';' before ')' token
    9 |   for (i==0,i<size,i++){
      |                       ^
      |                       ;
a.cc:12:16: error: expected primary-expression at end of input
   12 |   cout << endl;
      |                ^
a.cc:12:16: error: expected ')' at end of input
   12 |   cout << endl;
      |                ^
      |                )
a.cc:9:7: note: to match this '('
    9 |   for (i==0,i<size,i++){
      |       ^
a.cc:12:16: error: expected statement at end of input
   12 |   cout << endl;
      |                ^
a.cc:12:16: error: expected '}' at end of input
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include <iostream>
using namespace std;

int main(void) {
  string S;
  
  cin >> S;
  
  int n;
  
  n = S.length();
  
  for (int i = 0; i < n; i++) {
    cout << x;
  }
  
  
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 'x' was not declared in this scope
   14 |     cout << x;
      |             ^
Language: C++

#include <algorithm>
#include <cmath>
#include <iostream>
#include <string>
#include <vector>
using namespace std;
typedef long long ll;

int main(){
    char S[100];
    ll l;

    cin >> S;
    l = strlen(S);
    for(ll i = 0; i < l; i++){
        cout << 'x';
    }

    cout << endl;

    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'strlen' was not declared in this scope
   14 |     l = strlen(S);
      |         ^~~~~~
a.cc:6:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    5 | #include <vector>
  +++ |+#include <cstring>
    6 | using namespace std;
Language: C++

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

int main(){
    string S;
    int A = 0;
    cin >> S;
    A = S.size();
    for(int i = 0; i < A; i++){
        cout << x;
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:17: error: 'x' was not declared in this scope
   10 |         cout << x;
      |                 ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
#define lglg long long
#define FOR(i, a, b) for (int i=(a); i<(b); ++i)
#define ROF(i, b, a) for (int i=(b); i>(a); --i)
#define CASET int _T; cin >> _T; REP(caset, 0, _T)
#define vi vector<int>
#define vb vector<bool>
#define vs vector<string>
#define vvi vector<vi>
#define vvb vector<vb>
#define pii pair<int,int>
#define t3i tuple<int,int,int>
#define mii map<int,int>
#define vpii vector<pii>
#define vt3i vector<t3i>
#define sq(x) (x)*(x)
#define inv(x) powa(x, MOD-2)

long long INF = 1LL<<60;
long long MOD = 998244353;

template <typename A, typename B> istream &operator>>(istream &is, pair<A, B> &pr) {is >> pr.first >> pr.second; return is;}
template <typename A> istream &operator>>(istream &is, vector<A> &v) {for (auto &x : v) is >> x; return is;}
ostream &operator<<(ostream &os, char &c) {os << (char)c; return os;}
ostream &operator<<(ostream &os, const char s[]) {os << (string)s; return os;}
ostream &operator<<(ostream &os, string &s) {for (char &c : s) os << (char)c; return os;}
template <typename A, typename B> ostream &operator<<(ostream &os, pair<A, B> &pr) {os << '(' << pr.first << ", " << pr.second << ')'; return os;}
ostream &operator<<(ostream &os, vb &v) {
    bool first = true;
    os << '[';
    for (const bool &x : v) {
        if (!first) os << ", ";
        first = false;
        os << x;
    }
    os << ']';
    return os;
}
template <class C> ostream &operator<<(ostream &os, C &v) {
    bool first = true;
    os << '[';
    for (auto &x : v) {
        if (!first) os << ", ";
        first = false;
        os << x;
    }
    os << ']';
    return os;
}
string bin_string(int x) {
    const int d = 32;
    string res(d, ' ');
    FOR(i, 0, d) res[d-1-i] = '0'+(x>>i & 1LL);
    return res;
}
int powa(int base, int exp) {
    int res = 1;
    while (exp) {
        if (exp&1) res = res*base % MOD;
        base = base*base % MOD;
        exp >>= 1;
    }
    return res;
}

main() {
    ios::sync_with_stdio(0), cin.tie(0);
    
    string s;
    cin >> s;
    FOR(i, 0, s.size()) s[i] = 'x';
    cout << x;
}

Compiler output:
a.cc:68:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   68 | main() {
      | ^~~~
a.cc: In function 'int main()':
a.cc:74:13: error: 'x' was not declared in this scope
   74 |     cout << x;
      |             ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main()
{
	string s;
	cin >>s;
	for (int i=0;i<s.size;i++)
		cout <<'x';
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:26: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
    7 |         for (int i=0;i<s.size;i++)
      |                        ~~^~~~
      |                              ()
Language: C++

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

int main() {
  string s;
  cin >> s;
  int a=s.size();
  for(int i=0;i<a;i++){
    cout << x;
  }
  cout << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:13: error: 'x' was not declared in this scope
    9 |     cout << x;
      |             ^
Language: C++

#include <iostream>
#include <stdio.h>
#include <string.h>
using namespace std;
char s[105];
int main() {
  scanf("%s",s);
  for (int i=0;i<strlen(s);++i) putchar('x');
  putchar('\n');
  return 0;


Compiler output:
a.cc: In function 'int main()':
a.cc:10:12: error: expected '}' at end of input
   10 |   return 0;
      |            ^
a.cc:6:12: note: to match this '{'
    6 | int main() {
      |            ^
Language: C++

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

int main() {
  string s, t = "";
  cin >> s;
  for (int i = 0; i < s.length(); i++)
    t += 'x';
  cout << t << endl;

  return 0;
}

Compiler output:
a.cc:2:2: error: invalid preprocessing directive #incldde; did you mean #include?
    2 | #incldde <string>
      |  ^~~~~~~
      |  include
Language: C++

import sys
import re
input = sys.stdin.readline

s = input().strip()
print(re.sub('[a-z]', 'x', s))


Compiler output:
a.cc:6:14: warning: multi-character literal with 5 characters exceeds 'int' size of 4 bytes
    6 | print(re.sub('[a-z]', 'x', s))
      |              ^~~~~~~
a.cc:1:1: error: 'import' does not name a type
    1 | import sys
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
Language: C++

#include <iostream>
using namespace std;

int main(void) {
  string S;
  
  cin >> S;
  
  int n;
  
  n = S.length();
  
  for (int i = 0; i < n; i++) {
    cout >> x;
  }
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 'x' was not declared in this scope
   14 |     cout >> x;
      |             ^
Language: C++

// --------------------<optimizations>--------------------
#pragma GCC optimize("O3")
//(UNCOMMENT WHEN HAVING LOTS OF RECURSIONS)
#pragma comment(linker, "/stack:200000000")
//(UNCOMMENT WHEN TRYING TO BRUTEFORCE WITH A LOT OF LOOPS)
#pragma GCC optimize("unroll-loops")
// -------------------</optimizations>--------------------
 
#include <bits/stdc++.h>
 
using namespace std;
 
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define all(v) (v).begin(),(v).end()
#define f first
#define s second
#define sz(x) ll(x.size())
#define endl '\n'
#define forn(i,n) for(int i=0;i<n;++i)
#define fore(i,l,r) for(int i=int(l);i<=int(r);++i)
#define rep(i,begin,end) for(__typeof(end) i=(begin);i!=(end);i++)
#define fill(a,value) memset(a,value,sizeof(a));
#define gcd(a,b) __gcd((a),(b))
#define watch1(x) cout << (x) << endl
#define watch2(x,y) cout << (x) << " " << (y) << endl
#define watch3(x,y,z) cout << (x) << " " << (y) << " " << (z) << endl
#define fastio ios_base::sync_with_stdio(false);cin.tie(NULL);
 
typedef long long ll;
typedef long double ld; 
typedef pair<ll,ll> pii;
typedef vector<ll> vi;
typedef vector<vi> vvi;
typedef vector<pii> vpii;
 
const ll mod = 1e9 + 7;
const int inf = 1e9 + 5;
const int N = 2e5 + 5;

signed main(){
    fastio;
    string s;
    cin>>s;
    for(i=0;i<sz(s);++i)
        cout<<"x";
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:46:9: error: 'i' was not declared in this scope; did you mean 'vi'?
   46 |     for(i=0;i<sz(s);++i)
      |         ^
      |         vi
Language: C++

#incldue <bits/stdc++.h>
using namespace std;
typedef long long ll;
string s;
int main(){
cin>>s;
for(int i=0;i<s.length();i++){
s[i]=x;
}
cout<<s<<endl;
}


Compiler output:
a.cc:1:2: error: invalid preprocessing directive #incldue; did you mean #include?
    1 | #incldue <bits/stdc++.h>
      |  ^~~~~~~
      |  include
a.cc:4:1: error: 'string' does not name a type
    4 | string s;
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:6:1: error: 'cin' was not declared in this scope
    6 | cin>>s;
      | ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | #incldue <bits/stdc++.h>
a.cc:6:6: error: 's' was not declared in this scope
    6 | cin>>s;
      |      ^
a.cc:8:6: error: 'x' was not declared in this scope
    8 | s[i]=x;
      |      ^
a.cc:10:1: error: 'cout' was not declared in this scope
   10 | cout<<s<<endl;
      | ^~~~
a.cc:10:1: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:10:10: error: 'endl' was not declared in this scope
   10 | cout<<s<<endl;
      |          ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | #incldue <bits/stdc++.h>
Language: C++

#include <iostream>
using namespace std;


int main(){
    string str;

    cin >> str;

    for (int i=0; i<str.length(); i++){
        str[i]=x
    }

    cout << str <<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:16: error: 'x' was not declared in this scope
   11 |         str[i]=x
      |                ^
Language: C

#include <stdio.h>                                                                                                                                                               
#include <stdlib.h>                                                                                                                                                              
#include <string.h>                                                                                                                                                              
                                                                                                                                                                                 
int main (void) {                                                                                                                                                                
    char s[101];                                                                                                                                                                 
    scanf("%s", s);                                                                                                                                                              
                                                                                                                                                                                 
    int s_len = strlen(s);                                                                                                                                                       
                                                                                                                                                                                 
    for ( int i=0; i<s_len; i++ )                                                                                                                                                
        printf("x");                                                                                                                                                             
    printf("\n");                                                                                                                                                                
                                                                                                                                                                                 
    return EXIT_SUCCESS;                                                                                                                                                         
}                                                                                                                                                                                
~ 

Compiler output:
main.c:17:1: error: expected identifier or '(' before '~' token
   17 | ~
      | ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
  string s;
  cin>>s;
  long long n=s.length;
  for(i=0;i<n;i++)
  {
    cout<<"x";
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:17: error: cannot convert 'std::__cxx11::basic_string<char>::length' from type 'std::__cxx11::basic_string<char>::size_type (std::__cxx11::basic_string<char>::)() const noexcept' {aka 'long unsigned int (std::__cxx11::basic_string<char>::)() const noexcept'} to type 'long long int'
    7 |   long long n=s.length;
      |                 ^~~~~~
a.cc:8:7: error: 'i' was not declared in this scope
    8 |   for(i=0;i<n;i++)
      |       ^
Language: C++

#include <string>

using namespace std;

int main(){
  
  string a;
  
  cin >> a;
  
  int len = a.length()
    
  string answer = "";
  
  for(int i = 0; i < len; i++){
    answer += "x";
  }
  
  cout << answer << endl;
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:3: error: 'cin' was not declared in this scope
    9 |   cin >> a;
      |   ^~~
a.cc:2:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
    1 | #include <string>
  +++ |+#include <iostream>
    2 | 
a.cc:13:3: error: expected ',' or ';' before 'string'
   13 |   string answer = "";
      |   ^~~~~~
a.cc:16:5: error: 'answer' was not declared in this scope
   16 |     answer += "x";
      |     ^~~~~~
a.cc:19:3: error: 'cout' was not declared in this scope
   19 |   cout << answer << endl;
      |   ^~~~
a.cc:19:3: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:19:11: error: 'answer' was not declared in this scope
   19 |   cout << answer << endl;
      |           ^~~~~~
a.cc:19:21: error: 'endl' was not declared in this scope
   19 |   cout << answer << endl;
      |                     ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include <string>
  +++ |+#include <ostream>
    2 |
Language: C++

#include <iostream>
using namespace std;
int main() 
{
  char str1[] = cin >> str1;
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:5:21: error: initializer fails to determine size of 'str1'
    5 |   char str1[] = cin >> str1;
      |                 ~~~~^~~~~~~
a.cc:5:21: error: array must be initialized with a brace-enclosed initializer
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  
  string s;
  cin>>s;
  int a=s.length();
  while(a--)
    cout<<x;
  
  
  
  
  
  
  
 return 0; 
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:11: error: 'x' was not declared in this scope
    9 |     cout<<x;
      |           ^
Language: C++

#include "pch.h"
#include <iostream>
#include <vector>
#include <string>
using namespace std;

int main(){
  string s;
  cin >> s;
  
  for(int i = 0; i < strlen(s); i++){
    cout << 'x';
  }
  cout << endl;
  
  return 0;
}

Compiler output:
a.cc:1:10: fatal error: pch.h: No such file or directory
    1 | #include "pch.h"
      |          ^~~~~~~
compilation terminated.
Language: C++

#include <iostream>
#include <string>
#include <vector>
#include <utility>
#include <functional>
#include <numeric>
#include <list>
#include <set>
#include <map>
#include <algorithm>
#include <cmath>
#include <limits>
#include <iomanip>
#include <bitset>
#include <queue>
#include <unordered_set>
#include <unordered_map>
#include <stdio.h>

#define rep(i,n) repi(i,0,n)


using namespace std;
using ll = long long;

const int INF = 1001001001;

int main()
{
	string s="";
	cin>>s;
	rep(i, s.length())cout<<"x";
}

Compiler output:
a.cc: In function 'int main()':
a.cc:32:13: error: 'i' was not declared in this scope
   32 |         rep(i, s.length())cout<<"x";
      |             ^
a.cc:20:23: note: in definition of macro 'rep'
   20 | #define rep(i,n) repi(i,0,n)
      |                       ^
a.cc:20:18: error: 'repi' was not declared in this scope; did you mean 'rep'?
   20 | #define rep(i,n) repi(i,0,n)
      |                  ^~~~
a.cc:32:9: note: in expansion of macro 'rep'
   32 |         rep(i, s.length())cout<<"x";
      |         ^~~
Language: C++

#include <cmath>
#include <iostream>
#include <functional>
#include <string>
#include <sstream>
#include <vector>
#include <algorithm>
#include <stdio.h>
#include <iomanip>
#include <math.h>
#include <list>
#include <numeric>
using namespace std;

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

  for(int i=0;i<S.length();i++){
  cout << x;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:20:11: error: 'x' was not declared in this scope
   20 |   cout << x;
      |           ^
Language: Java

import java.util.*;

public class B {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s1 = sc.nextLine();
        StringBuilder sb = new StringBuilder();

        for (int i = 0; i < s1.length(); i++) {
            sb.append('x');
        }
        System.out.println(sb);
    }
}

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

#include<iostream>
#include<string>
using namespace std;
int main() {
	string s;
	cin >> s;
	int n;
	n = s.size();
	for (int i = 0;i < n;i++)cout << 'x';
	cout << endl;
	retur

Compiler output:
a.cc: In function 'int main()':
a.cc:11:9: error: 'retur' was not declared in this scope
   11 |         retur
      |         ^~~~~
a.cc:11:14: error: expected '}' at end of input
   11 |         retur
      |              ^
a.cc:4:12: note: to match this '{'
    4 | int main() {
      |            ^
Language: C++

#include<stdio.h>
#include<string>
int main() {
	char s[105];
	int i;
	scanf("%s", &s);
	for (i = 0; i < strlen(s); i++) printf("x");
	return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:25: error: 'strlen' was not declared in this scope
    7 |         for (i = 0; i < strlen(s); i++) printf("x");
      |                         ^~~~~~
a.cc:3:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    2 | #include<string>
  +++ |+#include <cstring>
    3 | int main() {
Language: C++

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

int main() {
	string s;
	cin>>s;
	int l = strlen(s);
	for(int i=0;i<l;i++){
	    cout<<"x";
	}
	
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:24: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
    8 |         int l = strlen(s);
      |                        ^
      |                        |
      |                        std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstring:43,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:121,
                 from a.cc:2:
/usr/include/string.h:407:35: note:   initializing argument 1 of 'size_t strlen(const char*)'
  407 | extern size_t strlen (const char *__s)
      |                       ~~~~~~~~~~~~^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){
  string s;
  cin>>s;
  int n;
  n=s.size();
  for(int i=0;i<n;i++)cout<<x;
  cout<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:29: error: 'x' was not declared in this scope
    8 |   for(int i=0;i<n;i++)cout<<x;
      |                             ^
Language: C++

#include "stdafx.h"
#include <bits/stdc++.h>
#define f(i,n) for(int i=0;i<n;i++)
#define P pair<int,int>
#define S second
using namespace std;
map<int, int> m;
signed main() {
	string s;
	cin >> s;
	f(i, s.size())cout << "x";
	cout << endl;
}

Compiler output:
a.cc:1:10: fatal error: stdafx.h: No such file or directory
    1 | #include "stdafx.h"
      |          ^~~~~~~~~~
compilation terminated.
Language: C++

s,t = map(str,input().split())
a,b = map(int,input().split())
u = input()

if s == u:
    a-=1
else:
    b-=1
print(a,b)

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

#include <bits/stdc++.h>

using namespace std;

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

    return 0 ;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:21: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'sizse'; did you mean 'size'?
    8 |     int n = (int) s.sizse();
      |                     ^~~~~
      |                     size
Language: C++

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

int main() {
  string s;
  cin >> s;
  for(int i = 0; i<K; i++) {
    s.at(i) = "x";
  }
  cout << s <<endl;
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: 'K' was not declared in this scope
    7 |   for(int i = 0; i<K; i++) {
      |                    ^
a.cc:8:15: error: invalid conversion from 'const char*' to '__gnu_cxx::__alloc_traits<std::allocator<char>, char>::value_type' {aka 'char'} [-fpermissive]
    8 |     s.at(i) = "x";
      |               ^~~
      |               |
      |               const char*
Language: C++

#include"iostream"
using namespace std;
int main(void) {
	string c;
	cin >> c;
	for (int i = 0; i < c.length; i++) {
		cout << "x";
	}

}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:31: 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 '()' ?)
    6 |         for (int i = 0; i < c.length; i++) {
      |                             ~~^~~~~~
      |                                     ()
Language: C++

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

int main() {
  string s;
  cin >> s;
  for(int i=0;i<s.size();i++){
    cout << x;
  }
  cout << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'x' was not declared in this scope
    8 |     cout << x;
      |             ^
Language: Java

import java.util.*;

class Main{
  public class void man(String[] args){
    Scanner sc=new Scanner(System.in);
    String ss=sc.next();
    
    for(int i=0;i<ss.length;i++){
      System.out.print('x');
    }
  }
}

Compiler output:
Main.java:4: error: <identifier> expected
  public class void man(String[] args){
              ^
1 error
Language: C++

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

int main()
{
    char s[101];
    gets(s);
    int l=strlen(s);
    for(int i=0; i<l; i++){
        printf("x");
    }
    cout << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:7:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
    7 |     gets(s);
      |     ^~~~
      |     getw
Language: C++

#include<iostream>
#include<string>
#include<cstdio>
#include<algorithm>
#include<cstdlib>
#include<cmath>
#include<vector>
#include<utility>
#include<queue>
#include<stack>
#include<set>
#include<map>
#include<unordered_set>
#include<unordered_map>
#include<bitset>
using namespace std;
#define INF 1000000007
#define LINF 100000000000000007
#define MOD 1000000007
#define int long long
#define rep(i,n) for(int i=0;i<n;i++)
#define repb(i, n) for (int i = n - 1; i >= 0; i--)
#define MODE 1
#ifdef MODE
#define DEB(X) cout<< #X <<": "<<X<<" ";
#define ARDEB(i,X) cout<< #X <<"["<<i<<"]: "<<X[i]<<" ";
#define END cout<<endl;
#else
#define DEB(X) {}
#define ARDEB(i,X) {}
#define END {}
#endif
typedef long long ll;
typedef pair<int,int> P;ac
struct edge{int to,cost;};
int ceil2(int a,int b){if(a%b){return a/b+1;}else{return a/b;}}
using namespace std;
 
signed main(void){
    string s;
    rep(i,s.size())cout<<"x";
    cout<<endl;
   
}


Compiler output:
a.cc:34:25: error: 'ac' does not name a type
   34 | typedef pair<int,int> P;ac
      |                         ^~
Language: Java

import java.util.*;
public class Main{
 public static void main(String[] args){
   Scanner sc = new Scanner(System.in);
   char[] c = sc.next().toCharArray();

   for(int i =0; i<c.length;i++)
   {
     c[i] = 'x';
   }
   System.out.println(String(c));
 }
}

Compiler output:
Main.java:11: error: cannot find symbol
   System.out.println(String(c));
                      ^
  symbol:   method String(char[])
  location: class Main
1 error
Language: C++

#include<iostream>
#include<string>
#include<algorithm>
#include<vector>
#include<cmath>
#include <limits>
#include <iomanip>
#include <map>

using namespace std;

int main(){
	string s;
	cin >> s;
	
	for(int i=0;i<s.size();i++){
		cout << x;
	}
	cout << endl;
	return 0;
}
		

Compiler output:
a.cc: In function 'int main()':
a.cc:17:25: error: 'x' was not declared in this scope
   17 |                 cout << x;
      |                         ^
Language: C++

#include<bits/c++.h>
using namespace std;
long long n,a,b,c;
int main()
{
	string s,t,s1;
	cin>>s;
	for(int i=0;i<s.size();i++)	
		cout<<'x';
	cout<<endl;	 
} 

Compiler output:
a.cc:1:9: fatal error: bits/c++.h: No such file or directory
    1 | #include<bits/c++.h>
      |         ^~~~~~~~~~~~
compilation terminated.
Language: C++

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

const long long INF = 1e7 + 1;
const long long MOD = 1000000007;
const long double PI = 3.14159265;

#define FOR(i,r,n) for(ll i = (ll)(r); i < (ll)(n); ++i)
#define RFOR(i,n,r) for(ll i = (ll)(n-1); i >= r; --i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,n,0)
#define ALL(x) x.begin(),x.end()
#define RALL(x) x.rbegin(),x.rend()

#define cout cout << setprecision(12)

using ll = long long int;
using ull = unsigned long long int;
using ld = long double;
using vi = vector<ll>;
using vvi = vector<vi>;
using vp = vector<pair<ll, ll>>;
using vs = vector<string>;
using vc = vector<char>;
using lst = list<ll>;
using pq = priority_queue<ll>;

template < typename T >
inline void dbg(T a) { cout << a << ' '; }

ll n, m, k, ans = 0, sum = 0, cnt = 0;
string s;
char c;

/*--------------------template--------------------*/

int main() {
    cin >> s;
    for (i=0;i<s.length();++i)
    cout << 'x' << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:10: error: 'i' was not declared in this scope; did you mean 'vi'?
   39 |     for (i=0;i<s.length();++i)
      |          ^
      |          vi
Language: C++

#include <bits/stdc++.h>

#define task "B"
#define ALL(v) (v).begin(), (v).end()
#define rep(i, l, r) for (int i = (l); i <= (r); ++i)
#define Rep(i, r, l) for (int i = (r); i >= (l); --i)
#define DB(X) { cerr << #X << " = " << (X) << '\n'; }
#define db1(A, _) { cerr << #A << "[" << _ << "] = " << (A[_]) << '\n'; }
#define db2(A, _, __) { cerr << #A << "[" << _ << "][" << __ << "] = " << (A[_][__]) << '\n'; }
#define db3(A, _, __, ___) { cerr << #A << "[" << _ << "][" << __ << "][" << ___ << "] = " << (A[_][__][___]) << '\n'; }
#define PR(A, n) { cerr << #A << " = "; rep(_, 1, n) cerr << A[_] << ' '; cerr << '\n'; }
#define SZ(x) ((int)(x).size())
#define pb push_back
#define F first
#define S second
#define by(x) [](const auto& a, const auto& b) { return a.x < b.x; } // sort(arr, arr + N, by(a));
#define next ackjalscjaowjico
#define prev ajcsoua0wucckjsl
#define y1 alkscj9u20cjeijc
#define left lajcljascjljl
#define right aucouasocjolkjl
#define y0 u9cqu3jioajc

using ll = long long;
using ld = long double;
using ull = unsigned long long;

using namespace std;

typedef pair<int,int> ii;
typedef pair<ii,int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<ll> vl;

int main()
{
	//freopen(task".in","r",stdin);
	//freopen(task".out","w",stdout);
	ios_base::sync_with_stdio(false);cin.tie(nullptr);
	string s;
	cin >> s;
	rep(i, 0, SZ(s) - 1) cout << x;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:43:38: error: 'x' was not declared in this scope
   43 |         rep(i, 0, SZ(s) - 1) cout << x;
      |                                      ^
Language: C++

#include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
#define INF 100000000
using namespace std;

int main() {

    string N;
    cin>>N;
  for(int i=o;i<N.size();i++)cout<<'x';
  cout<<endl;
    // vector<int> A(N);
    // for(int i=0; i<N; i++){cin>>A[i];}
    // vector<vector<int>> A(N,vector<int>(M));
    // for(int i=0; i<N; i++){for(int j=0; j<M; j++){cin>>A[i][j];}}
    //sort(A.begin(),A.end());
    //for (int i = 0; i < N; i++) { maximum = max(maximum , A[i])}
    //for (int i = 0; i < N; i++) { minimum = min(minimum , A[i])}
   // cout <<  << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: 'o' was not declared in this scope
   10 |   for(int i=o;i<N.size();i++)cout<<'x';
      |             ^
Language: C++

fun main(args: Array<String>) {
    abc154b()
}

fun abc154b() {
    val s = readLine()!!

    val answer = "x".repeat(s.length)

    return println(answer)
}


Compiler output:
a.cc:1:1: error: 'fun' does not name a type
    1 | fun main(args: Array<String>) {
      | ^~~
a.cc:5:1: error: 'fun' does not name a type
    5 | fun abc154b() {
      | ^~~
Language: C++

#include <bits/stdc++.h>
#define INF (int)1e9
#define endl "\n"
#define ll long long
#define ull unsigned long long

using namespace std;

int main()
{
    string a;
  	cin >> a;
  for(int i = 0; i < a.size(); i++){
    cout << x;
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:13: error: 'x' was not declared in this scope
   14 |     cout << x;
      |             ^
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main()

    string s;   cin >> s;

    for (int i = 0; i < s.size(); i++)
        cout << 'x';
    cout << '\n';

    return 0;
}

Compiler output:
a.cc:7:5: error: expected initializer before 'string'
    7 |     string s;   cin >> s;
      |     ^~~~~~
a.cc:7:17: error: 'cin' does not name a type
    7 |     string s;   cin >> s;
      |                 ^~~
a.cc:9:5: error: expected unqualified-id before 'for'
    9 |     for (int i = 0; i < s.size(); i++)
      |     ^~~
a.cc:9:21: error: 'i' does not name a type
    9 |     for (int i = 0; i < s.size(); i++)
      |                     ^
a.cc:9:35: error: 'i' does not name a type
    9 |     for (int i = 0; i < s.size(); i++)
      |                                   ^
a.cc:11:5: error: 'cout' does not name a type
   11 |     cout << '\n';
      |     ^~~~
a.cc:13:5: error: expected unqualified-id before 'return'
   13 |     return 0;
      |     ^~~~~~
a.cc:14:1: error: expected declaration before '}' token
   14 | }
      | ^
Language: C++

#include<iostream>
#include<string>
#include<vector>
#include<algorithm>
#include<bits/stdc++.h>
#include<cmath>
#include<bitset>
#include<queue>
#define ll long long
#define itn int
#define co(ans) cout<<ans<<endl;
#define COYE cout<<"YES"<<endl;
#define COYe cout<<"Yes"<<endl;
#define COye cout<<"yes"<<endl;
#define CONO cout<<"NO"<<endl;
#define CONo cout<<"No"<<endl;
#define COno cout<<"no"<<endl;
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define FFOR(i,a,b) for(int i=(a);i<=(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define RREP(i,n)  FFOR(i,1,n)
#define SORT(V) sort((V).begin(),(V).end())
#define REVERSE(V) reverse((V).begin(),(V).end())
#define INF ((1LL<<62)-(1LL<<31))
#define MOD 1000000007
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }
using namespace std;


int main(){
  string S;
  cin>>S;
  REP(i,S.size) cout<<"x";
  cout<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:11: error: invalid use of member function 'std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size_type std::__cxx11::basic_string<_CharT, _Traits, _Alloc>::size() const [with _CharT = char; _Traits = std::char_traits<char>; _Alloc = std::allocator<char>; size_type = long unsigned int]' (did you forget the '()' ?)
   34 |   REP(i,S.size) cout<<"x";
      |           ^
a.cc:18:37: note: in definition of macro 'FOR'
   18 | #define FOR(i,a,b) for(int i=(a);i<(b);++i)
      |                                     ^
a.cc:34:3: note: in expansion of macro 'REP'
   34 |   REP(i,S.size) cout<<"x";
      |   ^~~
Language: C++

s = input()
i = len(s)
ss = ''
for _ in range(i):
 ss += 'x'
print(ss)

Compiler output:
a.cc:3:6: error: empty character constant
    3 | ss = ''
      |      ^~
a.cc:1:1: error: 's' does not name a type
    1 | s = input()
      | ^
Language: C++

#define fast ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0)
#define pii pair<int,int>
#include <bits/stdc++.h>
#define pll pair<ll,ll>
#define vi vector<int>
#define ld long double
#define ll long long
#define sh short int
#define pb push_back
#define mid (l+r)/2
#define S second
#define F first
using namespace std;
const int inf = 1e9*2;
const int mod = 1e9+7;2;
int a,b;
int main(){
    cin>>s;
    for(int i=0;i<s.size();i++){
        s[i] = 'x';
    }
    cout<<s<<endl;
}


Compiler output:
a.cc:15:23: error: expected unqualified-id before numeric constant
   15 | const int mod = 1e9+7;2;
      |                       ^
a.cc: In function 'int main()':
a.cc:18:10: error: 's' was not declared in this scope
   18 |     cin>>s;
      |          ^
Language: C++

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
using namespace std;
#define int long long int
#define mod 1000000007
#define string_mod 2549536629329_base_255
#define pb push_back
#define F first
#define S second
template <typename T>
using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
int power(int x, unsigned int y, int p)
{
    int res = 1;

    x = x % p;
    while (y > 0)
    {

        if (y & 1)
            res = (res * x) % p;

        y = y >> 1;
        x = (x * x) % p;
    }
    return res;
}
int32_t main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);
    int tc = 1;
    // cin >> tc;
    while (tc--)
    {
        string s, t;
        cin >> s;
        for (int i = 0; i < s.size();i++){
            cout << x;
        }
    }

    return 0;
}

Compiler output:
a.cc: In function 'int32_t main()':
a.cc:42:21: error: 'x' was not declared in this scope
   42 |             cout << x;
      |                     ^
Language: C++

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

int main() {
  string s; cin >> s;
  int a = s.size();
  for(int i = 0; i < a; i++){
    cout << x;
  }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:13: error: 'x' was not declared in this scope
    8 |     cout << x;
      |             ^