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

#include <bits/stdc++.h>

using namespace std;

int main()
{
	string s;
	cin >> s;
	for(int i = 0;i< s.size()-2 ; i++)
	{
		if(s[i] == 'S' && s[i+1] == 'T')
		{
			s.erase(s.begin()+i);
			s.erase(s.begin()+i);
			i -= 2;
		}
	}
	if(s = "ST")
	{
		cout << s.size()-2;
		return 0;
	}
	cout << s.size();
	return 0;
}
//s.earase(s.beigin()+makan)

Compiler output:
a.cc: In function 'int main()':
a.cc:18:14: error: could not convert 's.std::__cxx11::basic_string<char>::operator=(((const char*)"ST"))' from 'std::__cxx11::basic_string<char>' to 'bool'
   18 |         if(s = "ST")
      |            ~~^~~~~~
      |              |
      |              std::__cxx11::basic_string<char>
Language: C++

#include <bits/stdc++.h>

using namespace std;

int main () {
  string s;
  cin >> s;
 
  int n = (int)s.size();
  stack<char> st;
  for (int i = 0; i < n; ++i) {
    if (s[i] == "S") st.push(s[i]);
    else {
      if (st.top() == "S") st.pop();
      else st.push(s[i]);
    }
  }
  cout << st.size() << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   12 |     if (s[i] == "S") st.push(s[i]);
a.cc:14:20: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   14 |       if (st.top() == "S") st.pop();
      |           ~~~~~~~~~^~~~~~
Language: C++

#include<bits/stdc++.h>
int main(){std::string S;std::cin>>S;stack<char> a;
    for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
    std::cout<<a.size();
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:38: error: 'stack' was not declared in this scope; did you mean 'std::stack'?
    2 | int main(){std::string S;std::cin>>S;stack<char> a;
      |                                      ^~~~~
      |                                      std::stack
In file included from /usr/include/c++/14/stack:63,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:160,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_stack.h:99:11: note: 'std::stack' declared here
   99 |     class stack
      |           ^~~~~
a.cc:2:44: error: expected primary-expression before 'char'
    2 | int main(){std::string S;std::cin>>S;stack<char> a;
      |                                            ^~~~
a.cc:3:36: error: 'a' was not declared in this scope
    3 |     for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
      |                                    ^
a.cc:4:16: error: 'a' was not declared in this scope
    4 |     std::cout<<a.size();
      |                ^
Language: C++

#include<bits/stdc++.h>
int main(){string S;std::cin>>S;stack<char> a;
    for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
    std::cout<<a.size();
}


Compiler output:
a.cc: In function 'int main()':
a.cc:2:12: error: 'string' was not declared in this scope
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |            ^~~~~~
a.cc:2:12: 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,
                 from a.cc:1:
/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:2:31: error: 'S' was not declared in this scope
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                               ^
a.cc:2:33: error: 'stack' was not declared in this scope; did you mean 'std::stack'?
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                                 ^~~~~
      |                                 std::stack
In file included from /usr/include/c++/14/stack:63,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:160:
/usr/include/c++/14/bits/stl_stack.h:99:11: note: 'std::stack' declared here
   99 |     class stack
      |           ^~~~~
a.cc:2:39: error: expected primary-expression before 'char'
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                                       ^~~~
a.cc:3:36: error: 'a' was not declared in this scope
    3 |     for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
      |                                    ^
a.cc:4:16: error: 'a' was not declared in this scope
    4 |     std::cout<<a.size();
      |                ^
Language: C++

#include<string>
int main(){std::string S;std::cin>>S;stack<char> a;
    for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
    std::cout<<a.size();
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:31: error: 'cin' is not a member of 'std'
    2 | int main(){std::string S;std::cin>>S;stack<char> 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 | int main(){std::string S;std::cin>>S;stack<char> a;
a.cc:2:38: error: 'stack' was not declared in this scope; did you mean 'obstack'?
    2 | int main(){std::string S;std::cin>>S;stack<char> a;
      |                                      ^~~~~
      |                                      obstack
a.cc:2:44: error: expected primary-expression before 'char'
    2 | int main(){std::string S;std::cin>>S;stack<char> a;
      |                                            ^~~~
a.cc:3:36: error: 'a' was not declared in this scope
    3 |     for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
      |                                    ^
a.cc:4:10: error: 'cout' is not a member of 'std'
    4 |     std::cout<<a.size();
      |          ^~~~
a.cc:4:10: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:4:16: error: 'a' was not declared in this scope
    4 |     std::cout<<a.size();
      |                ^
Language: C++

#include<string>
int main(){string S;std::cin>>S;stack<char> a;
    for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
    std::cout<<a.size();
}


Compiler output:
a.cc: In function 'int main()':
a.cc:2:12: error: 'string' was not declared in this scope
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |            ^~~~~~
a.cc:2:12: note: suggested alternatives:
In file included from /usr/include/c++/14/string:41,
                 from a.cc:1:
/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:2:26: error: 'cin' is not a member of 'std'
    2 | int main(){string S;std::cin>>S;stack<char> 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 | int main(){string S;std::cin>>S;stack<char> a;
a.cc:2:31: error: 'S' was not declared in this scope
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                               ^
a.cc:2:33: error: 'stack' was not declared in this scope; did you mean 'obstack'?
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                                 ^~~~~
      |                                 obstack
a.cc:2:39: error: expected primary-expression before 'char'
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                                       ^~~~
a.cc:3:36: error: 'a' was not declared in this scope
    3 |     for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
      |                                    ^
a.cc:4:10: error: 'cout' is not a member of 'std'
    4 |     std::cout<<a.size();
      |          ^~~~
a.cc:4:10: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:4:16: error: 'a' was not declared in this scope
    4 |     std::cout<<a.size();
      |                ^
Language: C++

#include<iostream>
int main(){string S;std::cin>>S;stack<char> a;
    for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
    std::cout<<a.size();
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:12: error: 'string' was not declared in this scope
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |            ^~~~~~
a.cc:2:12: 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:1:
/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:2:31: error: 'S' was not declared in this scope
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                               ^
a.cc:2:33: error: 'stack' was not declared in this scope; did you mean 'obstack'?
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                                 ^~~~~
      |                                 obstack
a.cc:2:39: error: expected primary-expression before 'char'
    2 | int main(){string S;std::cin>>S;stack<char> a;
      |                                       ^~~~
a.cc:3:36: error: 'a' was not declared in this scope
    3 |     for(int i=0;i<S.size();i++){if(a.size()&&a.top()==S.at(i)-1)a.pop();else a.push(S.at(i));}
      |                                    ^
a.cc:4:16: error: 'a' was not declared in this scope
    4 |     std::cout<<a.size();
      |                ^
Language: C++

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

int int_len(int n) {
  int s=0;
  while(n!=0) s++, n/=10;
  return s;
}

int int_sum(int n) {
  int m=0,s=0,a=n;
  while(a!=0) s++, a/=10;
  for(int i=s-1;i>=0;i--) m+=n/((int)pow(10,i))-(n/((int)pow(10,i+1)))*10;
  return m;
}

int vec_sum(vector<int> v){
  int n=0;
  for(int i=0;i<v.size();i++) n+=v[i];
  return n;
}

int main() {
  int i=0;
  string s;
  cin>>s;
  while(i<s.size()-1 && s.size!=0){
    if(s[i]=='S' && s[i+1]=='T'){
      s.erase(i,2);
      i=0;
      
    }else{
      i++;
    }
  }
  cout<<s.size()<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:27: 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 '()' ?)
   28 |   while(i<s.size()-1 && s.size!=0){
      |                         ~~^~~~
      |                               ()
Language: C++

#include <bits/stdc++.h>
using namespace std;
using Int = long long;
typedef pair<int,int> Pi; typedef map<int,int> MPi; typedef pair<Int,Int> Pl;
const int mod = 1000000007;
#define END {cout<<ans<<'\n'; return 0;}
#define ALL(v) v.begin(),v.end()
#define Pr(type) priority_queue<type>
#define gPr(type) priority_queue<type,vector<type>,greater<type>>
#define V(type) vector<type>
template<class T> inline bool cmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool cmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }


int main(){
	cin.tie(nullptr); ios::sync_with_stdio(false);

	string s; cin>>s; int ans=0,key=0;
	for (int i = 0; i < s.size(); i++){
		if(s[i]=='S')key++;
		else{
			if(key){
				int a=0;
				for (int j = 0; j < key; j++){
					if(s[i+j]=='T')a++;
					else break;
				}
				ans+=a;
			}
			key=0;
		}
	}
	cout<<max(0u,s.size()-ans*2)<<'\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:33:18: error: no matching function for call to 'max(unsigned int, std::__cxx11::basic_string<char>::size_type)'
   33 |         cout<<max(0u,s.size()-ans*2)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~~~~~
In file included from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/bits/stl_algobase.h:257:5: note: candidate: 'template<class _Tp> constexpr const _Tp& std::max(const _Tp&, const _Tp&)'
  257 |     max(const _Tp& __a, const _Tp& __b)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:257:5: note:   template argument deduction/substitution failed:
a.cc:33:18: note:   deduced conflicting types for parameter 'const _Tp' ('unsigned int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'})
   33 |         cout<<max(0u,s.size()-ans*2)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note: candidate: 'template<class _Tp, class _Compare> constexpr const _Tp& std::max(const _Tp&, const _Tp&, _Compare)'
  303 |     max(const _Tp& __a, const _Tp& __b, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algobase.h:303:5: note:   candidate expects 3 arguments, 2 provided
In file included from /usr/include/c++/14/algorithm:61:
/usr/include/c++/14/bits/stl_algo.h:5706:5: note: candidate: 'template<class _Tp> constexpr _Tp std::max(initializer_list<_Tp>)'
 5706 |     max(initializer_list<_Tp> __l)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5706:5: note:   candidate expects 1 argument, 2 provided
/usr/include/c++/14/bits/stl_algo.h:5716:5: note: candidate: 'template<class _Tp, class _Compare> constexpr _Tp std::max(initializer_list<_Tp>, _Compare)'
 5716 |     max(initializer_list<_Tp> __l, _Compare __comp)
      |     ^~~
/usr/include/c++/14/bits/stl_algo.h:5716:5: note:   template argument deduction/substitution failed:
a.cc:33:18: note:   mismatched types 'std::initializer_list<_Tp>' and 'unsigned int'
   33 |         cout<<max(0u,s.size()-ans*2)<<'\n';
      |               ~~~^~~~~~~~~~~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  string x;
  cin>>x;
  int scount=0;
  int tcount=0;
  int ans=s.size();
  for(int i=0;i<x.size();i++){
    if(x.at(i)=='S'){
      scount++;
    }
    else{
      tcount++;
    }
    if(tcount>scount){
      ans-=2;
      tcount--;
    }
  }
  cout<<ans;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:11: error: 's' was not declared in this scope
    8 |   int ans=s.size();
      |           ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main() {
  string x;
  cin>>x;
  int scount=0;
  int tcount=0;
  int ans=s.size();
  for(int i=0;i<x.size();i++){
    if(x.at(i)=='S'){
      scount++;
    }
    else{
      tcount++;
    }
    if(tcount>scount){
      ans-=2;
      tcount--;
    }
  }
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:11: error: 's' was not declared in this scope
    8 |   int ans=s.size();
      |           ^
Language: C++

#include <string>
#include <iostream>                                                                                                                                                                                                                                                         int main() {                                                                                                                            std::string X;
  std::cin >> X;
  int n = X.length();
  int ans = n;
  int cnt = 0;
  for (int i = 0; i < n; ++i) {
    if (X[i] == 'S') ++cnt;
    else {
      if (cnt > 0) {
        --cnt;
        ans -= 2;
      }
    }
  }
  std::cout << ans << std::endl;
}                                                                                                                                     

Compiler output:
a.cc:2:269: warning: extra tokens at end of #include directive
    2 | #include <iostream>                                                                                                                                                                                                                                                         int main() {                                                                                                                            std::string X;
      |                                                                                                                                                                                                                                                                             ^~~
a.cc:3:8: error: 'cin' in namespace 'std' does not name a type
    3 |   std::cin >> X;
      |        ^~~
In file included from a.cc:2:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:4:11: error: 'X' was not declared in this scope
    4 |   int n = X.length();
      |           ^
a.cc:7:3: error: expected unqualified-id before 'for'
    7 |   for (int i = 0; i < n; ++i) {
      |   ^~~
a.cc:7:19: error: 'i' does not name a type
    7 |   for (int i = 0; i < n; ++i) {
      |                   ^
a.cc:7:26: error: expected unqualified-id before '++' token
    7 |   for (int i = 0; i < n; ++i) {
      |                          ^~
a.cc:16:8: error: 'cout' in namespace 'std' does not name a type
   16 |   std::cout << ans << std::endl;
      |        ^~~~
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:17:1: error: expected declaration before '}' token
   17 | }
      | ^
Language: C++

int main() {
    string s;
    cin >> s;
    int k=0,sn;
    for (auto c:s) {
        if (c=='S') {++sn;}
        else {if (sn>0){--sn;k+=2;}}
    }
    cout << s.length()-k << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:2:5: error: 'string' was not declared in this scope
    2 |     string s;
      |     ^~~~~~
a.cc:3:5: error: 'cin' was not declared in this scope
    3 |     cin >> s;
      |     ^~~
a.cc:3:12: error: 's' was not declared in this scope
    3 |     cin >> s;
      |            ^
a.cc:9:5: error: 'cout' was not declared in this scope
    9 |     cout << s.length()-k << endl;
      |     ^~~~
a.cc:9:29: error: 'endl' was not declared in this scope
    9 |     cout << s.length()-k << endl;
      |                             ^~~~
Language: C++

#include<cstdio>
#define itn int
using namespace std;
int main()
{
    string s;
    int n=s.size();
    int s1=0;
    itn ans=0;
    for(int i=0;i<n;i++)
    {
        s[i]=getchar();
        if(s[i]=='S') s1+=1;
        if(s1&&s[i]=='T')
        {
            s1-=1;
            ans+=2;
        }
    }
    printf("%d",n-ans);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:6:5: error: 'string' was not declared in this scope
    6 |     string s;
      |     ^~~~~~
a.cc:2:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
    1 | #include<cstdio>
  +++ |+#include <string>
    2 | #define itn int
a.cc:7:11: error: 's' was not declared in this scope
    7 |     int n=s.size();
      |           ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
string s;
int sums,sumt;
int main(){
    cin>>s;
    for(int i=0;i<S.size();i++){
        if(S[i]=='S')sums++;//有S，S出现的次数++
        if((sums)&&(S[i]=='T')){//在有S的前提下，有T
            sums--;sumt+=2;}}//丢出一个S,自加2，因为需要删除S和T
    cout<<s.size()-sumt<<endl;//最后输出即可
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:19: error: 'S' was not declared in this scope
    7 |     for(int i=0;i<S.size();i++){
      |                   ^
Language: C++

#include <bits/stdc++.h>

using namespace std;
int main(){
  string s;
   cin >> s;
  
  s+='S';
  
  int res=s.length()-1;
  int cnt_s=0,cnt_t=0;
  
  if(s[0]=='S') cnt_s++;
  else cnt_t++;
  
  
  
  for(int i=1;i<s.length();i++){
   if(s[i]=='S') { if(s[i-1]=='T') {res-=2*min(cnt_s,cnt_t); 
     cnt_s=cnt_t=0;
                                   }
     cnt_s++;}          
   else {cnt_t++;  
        }
  }
   
  
  
 cout << res << endl;
}_

Compiler output:
a.cc:30:2: error: '_' does not name a type
   30 | }_
      |  ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  string X;cin >> X;
  int cntS = 0;
  int ans = N;
  int N = X.size();
  for(int i = 0; i < N; ++i){
    if(X[i] == 'S')cntS++;
    else if(cntS > 0){
      cntS--;
      ans--;
    }
  }
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:6:13: error: 'N' was not declared in this scope
    6 |   int ans = N;
      |             ^
Language: C++

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

int main() {
  string x;
  int i, a = 0, b = 0;
  cin >> x;
  
  for(i = 0; i < x.size(); i++){
    if(x.at(i) == 'T'){
      a++;
    }
    else{
      break;
    }
  }
  
  for(i = n - 1; i >= 0; i--){
    if(x.at(i) == 'S'){
      b++;
    }
    else{
      break;
    }
  }
  
  cout << max(a, b) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:18:11: error: 'n' was not declared in this scope
   18 |   for(i = n - 1; i >= 0; i--){
      |           ^
Language: Java

import java.util.Scanner;
import java.lang.Math;

public class MainA {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String str = scanner.nextLine();
        int ans = str.length();

        int sequenceS = 0, sequenceT = 0;
        for (int i = 0; i < str.length(); ++i) {
            if (str.charAt(i) == 'S') {
                ans -= (i > 0 && str.charAt(i - 1) == 'T') ? 2 * Integer.min(sequenceS, sequenceT) : 0;
                sequenceS = (i > 0 && str.charAt(i - 1) == 'T') ? 1 : sequenceS + 1;
            } else {
                sequenceT = (i > 0 && str.charAt(i - 1) == 'S') ? 1 : sequenceT + 1;
                ans -= (i == str.length() - 1) ? 2 * Integer.min(sequenceS, sequenceT) : 0;
            }
        }

        System.out.println(ans);

    }
}

Compiler output:
Main.java:4: error: class MainA is public, should be declared in a file named MainA.java
public class MainA {
       ^
1 error
Language: C++

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

int main()
{
  string s;
  cin>>s;
  
  int cs = 0;
  int cnt =0;
  for (int i =0;i<s.length();i++)
  {
    if (s[i]=='S')
      cs++;
    else if (s[i]=='T'&&cs>0)
    {
      cs--;
      cnt++;
    }
  }
  cour << s.length()- cnt*2 << endl;
}
    


Compiler output:
a.cc: In function 'int main()':
a.cc:21:3: error: 'cour' was not declared in this scope
   21 |   cour << s.length()- cnt*2 << endl;
      |   ^~~~
Language: C++

#include<bits/stdc++.h>

using namespace std;


int main(){
    string str;
    cin>>str;
    int scnt,tcnt,m=0;
    scnt=tcnt=0;
    bool s=1;
    for(int i=0;i<str.length();++i)
    {
        if(str[i]=='S'){
            if(s) 
                scnt++;
            }
        else{
                if(scnt>tcnt){
                    scnt-=tcnt;
                    tcnt=0;
                }
        else{
            m+=tcnt-scnt;
            scnt=tcnt=0;
                }
                s=true;
                scnt++;
            }
        }
        else{
            s=false;
            tcnt++;
        }
    }
    if(scnt>tcnt)m+=(scnt-tcnt);
    else m+=(tcnt-scnt);
    cout<<m;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:31:9: error: 'else' without a previous 'if'
   31 |         else{
      |         ^~~~
a.cc: At global scope:
a.cc:36:5: error: expected unqualified-id before 'if'
   36 |     if(scnt>tcnt)m+=(scnt-tcnt);
      |     ^~
a.cc:37:5: error: expected unqualified-id before 'else'
   37 |     else m+=(tcnt-scnt);
      |     ^~~~
a.cc:38:5: error: 'cout' does not name a type
   38 |     cout<<m;
      |     ^~~~
a.cc:39:1: error: expected declaration before '}' token
   39 | }
      | ^
Language: C++

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

int main()
{
    int T;
    string p1;
    cin>>p1;
    while(p1.find("ST")!=-1)
        {
            n=p1.find("ST");
            p1.erase(n,2);
        }
        cout<<p1.length()<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:13: error: 'n' was not declared in this scope
   12 |             n=p1.find("ST");
      |             ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main(){
  int cnt=0,cntmin=0;
  string S;
  cin >> S;
  int ans=S.length();
  for(int i=0; i<S.length(); i++){
    if(S[i]=='S')cnt++;
    else cnt--;
    if(cnt<0)cnt=0;
    if(cnt>cntmax)cntmax=cnt;
    if(cnt==0){
      ans-=cntmax*2;
      cntmax=0;
    }
  }
  cout << ans << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:12: error: 'cntmax' was not declared in this scope; did you mean 'cntmin'?
   12 |     if(cnt>cntmax)cntmax=cnt;
      |            ^~~~~~
      |            cntmin
a.cc:14:12: error: 'cntmax' was not declared in this scope; did you mean 'cntmin'?
   14 |       ans-=cntmax*2;
      |            ^~~~~~
      |            cntmin
Language: C++

#include<bits/stdc++.h>
#define all(x) (x).begin(),(x).end()
typedef long long ll;
#define rep(i,n) for(ll i=0, i##_len=(n); i<i##_len; ++i)
using namespace std;
#define sz(x) ((int)(x).size())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
#define MEMSET(v, h) memset((v), h, sizeof(v))
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; }
#define pb push_back
#define mp make_pair
#define y0 y3487465
#define y1 y8687969
#define j0 j1347829
#define j1 j234892
ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
const ll INF = 1LL<<60;
 
int main() {
	string X;
  	cin >> X;
  	int ans = X.size();
  	stack<char> st;
  	for (int i = 0; i < X.size(); ++i) {
        if (st.empty() || st.top() == X[i] || st.top() == 'T') st.push(s[i]);
        else if(st.top() == 'S' && X[i] == 'T') {
            ans -= 2;
            st.pop();
        }
    }
  	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:72: error: 's' was not declared in this scope
   27 |         if (st.empty() || st.top() == X[i] || st.top() == 'T') st.push(s[i]);
      |                                                                        ^
Language: C++

#include <iostream>
int main(void)
{
	char x[200001];
	int l, ct = 0, cs = 0, ans = 0;
	std::cin >> x;
	l = std::strlen(x);
	while(x[ct] == 'T') ct++;
	for(int i = ct; i != l; i++){
		if(x[i] == 'S'){
			cs++;
		}else{
			if(cs > 0) cs--;
			else ans++;
		}
	}
	std::cout << ct + ans + cs << std::endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: 'strlen' is not a member of 'std'; did you mean 'mbrlen'?
    7 |         l = std::strlen(x);
      |                  ^~~~~~
      |                  mbrlen
Language: Java

import java.util.Scanner;

public class ProblemA {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String X = sc.next();
		sc.close();
		int l = X.length();
		for(int i = 0; i < 50; i++) {
			X = X.replaceAll("SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT", "");
		}
		int idx = 0;
		while(true) {
			X = X.replaceAll("ST", "");
			idx++;
			if(X.length() == l) {
				break;
			}else {
				l = X.length();
			}
			if(idx > 100000000) break;
		}
		System.out.println(X.length());
	}
}

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

import java.util.Scanner;

public class ProblemA {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String X = sc.next();
		sc.close();
		int l = X.length();
		for(int i = 0; i < 50; i++) {
			X = X.replaceAll("SSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTTT", "");
		}
		while(true) {
			X = X.replaceAll("ST", "");
			if(X.length() == l) {
				break;
			}else {
				l = X.length();
			}
		}
		System.out.println(X.length());
	}
}

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

#include <iostream>
#include <string>
#include <cmath>
#include <vector>
#include <algorithm>
#include <iomanip>
using namespace std;
typedef vector<int> vint;
typedef vector<string> vstr;




int main()
{
	int size,ans,cou;
	cou = 0;
	string X;
	cin >> X;
	size = X.length();
	ans = size;
	for (int i = 0; i < size; i++){
		if (X[i] == S){
			cou++;
		}if (X[i] == T){
			ans -= cou;
			cou = 0;
		}
	}
	cout << ans << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:29: error: 'S' was not declared in this scope
   23 |                 if (X[i] == S){
      |                             ^
a.cc:25:30: error: 'T' was not declared in this scope
   25 |                 }if (X[i] == T){
      |                              ^
Language: C++

#include <bits/stdc++.h>
const int mod = 1000 * 1000 * 1000 + 7;
using namespace std;
int main()
{
	string s;
	cin >> s;
	vector<int> v;
	for(auto x : s)
	{
		if(x == 'S')
			v.PB(x);
		else if(x == 'T' && v.size() && v.back() == 'S')
			v.pop_back();
		else
			v.PB(x);
	}
	cout << v.size() << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:27: error: 'class std::vector<int>' has no member named 'PB'
   12 |                         v.PB(x);
      |                           ^~
a.cc:16:27: error: 'class std::vector<int>' has no member named 'PB'
   16 |                         v.PB(x);
      |                           ^~
Language: C++

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

typedef long long ll;
typedef pair<int,int> p_int;
typedef pair<ll,ll> p_ll;
typedef tuple<ll,ll,ll> t3_ll;
int dx[] = {-1,0,1,0},dy[] = {0,1,0,-1};
int prime[] = {2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97};
const ll inf = 1e9+7;

int main() {
	string s;
	cin  >> s;
	ll stack=0;ll syokyo=0;
	for (int i = 0;i < s.size();i++) {
		if (s[i] == "S") {stack++;}
		else if (stack > 0) {stack--;syokyo++;}
	}
	cout << s.size() - syokyo*2 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:26: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   17 |                 if (s[i] == "S") {stack++;}
Language: C++

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

typedef long long ll;
typedef pair<int,int> p_int;
typedef pair<ll,ll> p_ll;
typedef tuple<ll,ll,ll> t3_ll;
int dx[] = {-1,0,1,0},dy[] = {0,1,0,-1};
int prime[] = {2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97};
const ll inf = 1e9+7;

int main() {
	string s;
	cin  >> s;
	ll stack=0;ll syokyo=0;
	for (int i = 0;i < s.size;i++) {
		if (s[i] == "S") {stack++;}
		else if (stack > 0) {stack--;syokyo++;}
	}
	cout << s.size - syokyo*2 << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:16:30: 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 '()' ?)
   16 |         for (int i = 0;i < s.size;i++) {
      |                            ~~^~~~
      |                                  ()
a.cc:17:26: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   17 |                 if (s[i] == "S") {stack++;}
a.cc:20:19: 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 '()' ?)
   20 |         cout << s.size - syokyo*2 << endl;
      |                 ~~^~~~
      |                       ()
Language: C++

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

int main()
{
	string str;
	cin >> str;
	while(str.find("ST",0)!=-1)
	{
		str.erase(str.find("ST", 0), 2);
	}
	if(str.lenth()==0) return 0;
	else cout << str.length();
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:16: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'lenth'; did you mean 'length'?
   13 |         if(str.lenth()==0) return 0;
      |                ^~~~~
      |                length
Language: Java

import java.util.Scanner;

public class main {

	public static void main(String[] args) {
		Scanner stdin = new Scanner( System.in);
		String  x;
		int i=0,j=0;
		x =stdin.next();
		for(int k=1;k<=x.length();k++){
			String xx=x.substring(k-1,k);
			if(xx.equals("S")){i++;
			}else{i--;
			}
			if(i<0){
				j++;
				i=0;
			}
		}
		System.out.print(j*2);
	}
}


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

#include<bits/stdc++.h>
using namespace std;
string s;
int sum1,sum2,sum;
int main()
{
    cin>>s;
    int n=s.size();
    for(int i=0;i<n;i++)
    {
        if(s[i]=='S') sum2++;
        if(sum2>=sum1)
        else if(sum2) sum1++;
        {
            sum+=min(sum2,sum1)*2;
            sum2-=min(sum2,sum1);
            sum1=0;
        }
    }
    cout<<n-sum<<endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:9: error: expected primary-expression before 'else'
   13 |         else if(sum2) sum1++;
      |         ^~~~
Language: C++

#include<bits/stdc++.h>

#define FOR(i, a, b) for (int i = (a); i < (b); ++i)

#define REP(i, n) for (int i = 0; i < (n); ++i)

#define int long long

#define vec(a,n) vector<int> (a)((n))

#define Vec(a,n) vector<string> (a)((n))

using namespace std;

signed main(){
	string a;
	int s,ans=0;
	cin>>a;
	REP(i,n){
		if(a[i] == 'S') s++;
		if(s!=0 && a[i] =='T'){
			ans++;
			s--;
		}
	}
	cout<<ans;
	return 0;
	
	
}


Compiler output:
a.cc: In function 'int main()':
a.cc:19:15: error: 'n' was not declared in this scope
   19 |         REP(i,n){
      |               ^
a.cc:5:40: note: in definition of macro 'REP'
    5 | #define REP(i, n) for (int i = 0; i < (n); ++i)
      |                                        ^
Language: C++

#include<iostream>
#include<ctype.h>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
inline int read(){
	int x=0,f=0;char ch=getchar();
	while(!isdigit(ch))f|=ch=='-',ch=getchar();
	while(isdigit(ch))x=x*10+(ch^48),ch=getchar();
	return f?-x:x;
}
string s;
int er,ans;
int main(){
	cin>>s;
	int l=s.length();
	for(int i=0;i<l;++i){
		if(s[i]=='S')++er;
		if(s[i]=='T' && er>0)--er,ans++;
	}
	cout<<strlen(s)-ans-ans<<"\n";
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: cannot convert 'std::string' {aka 'std::__cxx11::basic_string<char>'} to 'const char*'
   22 |         cout<<strlen(s)-ans-ans<<"\n";
      |                      ^
      |                      |
      |                      std::string {aka std::__cxx11::basic_string<char>}
In file included from /usr/include/c++/14/cstring:43,
                 from a.cc:4:
/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<cstdio>
#include<stack>
#include<iostream>
#include<algorithm>
using namespace std;
#define MAXN 200000
stack <char> st;
char str[MAXN + 5];
int main() {
	cin >> str;
	int len = strlen(str), Ans = 0;
	for (int i = 0; i < len; i++)
		if (str[i] == 'S') st.push('S');
		else if (st.size() > 0) {
			Ans += 2;
			st.pop();
		}
	cout << len - Ans;
	getchar(); getchar(); getchar();
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:19: error: 'strlen' was not declared in this scope
   11 |         int len = strlen(str), Ans = 0;
      |                   ^~~~~~
a.cc:5:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include<algorithm>
  +++ |+#include <cstring>
    5 | using namespace std;
a.cc:15:25: error: 'Ans' was not declared in this scope
   15 |                         Ans += 2;
      |                         ^~~
a.cc:18:23: error: 'Ans' was not declared in this scope
   18 |         cout << len - Ans;
      |                       ^~~
Language: C++

#include <cmath>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <queue>
#include <cassert>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <bitset>
#include <sstream>

using namespace std;

typedef long long ll;

mt19937 rnd(228);

int main()
{
#ifdef ONPC
    freopen("a.in", "r", stdin);
#endif
    ios::sync_with_stdio(0);
    cin.tie(0);
    string s;
    cin >> s;
    string t = "";
    for (auto c : s)
    {
        if (c == "S")
        {
            t += c;
        }
        else
        {
            if (!t.empty() && t.back() == 'S') t.pop_back();
            else t += c;
        }
    }
    cout << t << '\n';
}


Compiler output:
a.cc: In function 'int main()':
a.cc:39:15: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   39 |         if (c == "S")
      |             ~~^~~~~~
Language: C++

//#include <bits/stdc++.h>
//#include <stdio.h>
#include<iostream>
#include<cstdio>
#include<bitset>
#include<algorithm>
#include<vector>
#include<list>
#include<queue>
#include<stack>
#include<string>
#include<string.h>
#include<cmath>
#include<utility>
#include<functional>
#include<map>
#include<set>
#include<cctype>
#include<fstream>
#include <numeric>
#include <iomanip>
 
#define FOR(i, a, b) for( int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for( int i=(a);i>=(b);i--)
#define LFOR(i, a, b) for( long long int i=(a);i<=(b);i++)
#define LRFOR(i, a, b) for(long long int i=(a);i>=(b);i--)
#define MOD 1000000007
using namespace std;
using ll=long long;
constexpr ll gcd(ll a,ll b){return b?gcd(b,a%b):a;}
constexpr ll lcm(ll a,ll b){return a*b/gcd(a,b);}
 
int main() {

string N;
int n=0;
int nmax=0;
int ans=0;
  cin >> N;

  for(int i=0;i<N.size;i++){
    if(N[i]=='S'){
      n++;
      if(n>nmax){nmax=n;}
    }else{
      n--;
    }
  }



 
  cout << n*2<< endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:41:19: 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 '()' ?)
   41 |   for(int i=0;i<N.size;i++){
      |                 ~~^~~~
      |                       ()
Language: C++

#include<stdio.h>
#include<iostream>
#include<string>
#include<math.h>
#include<cmath>
#include<algorithm>
#include<map>
#include<queue>
#include<stack>
#include<vector>
#include<time.h>
#include<ctime>
#include<functional>
#define int long long
#define INT INT_MAX
#define LONG LLONG_MAX
#define f(i,n) for(int i=0;i<(n);i++)
#define P pair<int,int>
typedef long long ll;
using namespace std;

ll GCD(ll a, ll b) {
	if (b == 0)return a;
	return GCD(b, a%b);
}

ll LCM(ll a, ll b) {
	return a / GCD(a, b)*b;
}

ll mypow(ll a, ll b, ll c) {
	if (b == 0)return 1;
	if (b % 2)return mypow(a, b - 1, c)*a%c;
	else return mypow(a, b / 2, c)*mypow(a, b / 2, c) % c;
}

signed main() {
	string s;
	cin >> s;
	int x = 0, xx = 0, y = 0, yy = 0;
	f(i, s.size()) {
		if (s[i] == 'T') x++;
		else x--;
		xx=max(x,xx)
	}
	cout << xx * 2 << endl;
	getchar();
	getchar();
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:44:29: error: expected ';' before '}' token
   44 |                 xx=max(x,xx)
      |                             ^
      |                             ;
   45 |         }
      |         ~
Language: C++

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

const int mnx = 3e5 + 9;
const int mod = 1e9 + 7;

string x;
ll cnt;

int main(){

cin >> x;
int ans = length(x), s = 0;
for(int i=0; i<x.size(); i++) {
    if (x[i] == 'S') s++;
    else {
        if(s > 0) {
            ans -= 2;
            s--;
        }
    }
}
cout << ans;

return 0;

}















Compiler output:
a.cc: In function 'int main()':
a.cc:15:11: error: 'length' was not declared in this scope
   15 | int ans = length(x), s = 0;
      |           ^~~~~~
a.cc:17:22: error: 's' was not declared in this scope
   17 |     if (x[i] == 'S') s++;
      |                      ^
a.cc:19:12: error: 's' was not declared in this scope
   19 |         if(s > 0) {
      |            ^
Language: C++

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

int main() {
  
  string str;
  cin >> str; 
  int a = (int)str.size();
  int b = (int)str.size();
  char ch[a+5];
  for(int i = 0; i < (int)str.size(); ++i){
      char ch[i] = str[i];
  }
  for(int o; o<a+100; a++){
  for(int i = 0;i < a; i++){
    if(ch[i] == "S" && ch[i+1] == "T"){
      for(int j; j < a;j++ ){
        ch[i+j] = ch[i + j + 2];
         
      }
      b = b-2;
    }
  }
}


cout << b << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:12:25: error: array must be initialized with a brace-enclosed initializer
   12 |       char ch[i] = str[i];
      |                         ^
a.cc:16:14: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   16 |     if(ch[i] == "S" && ch[i+1] == "T"){
      |        ~~~~~~^~~~~~
a.cc:16:32: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   16 |     if(ch[i] == "S" && ch[i+1] == "T"){
      |                        ~~~~~~~~^~~~~~
Language: C++

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

int main() {
  
  string str;
  cin >> str; 
  int a = (int)str.size();
  int b = (int)str.size();
  char ch[a+5]
  for(int i = 0; i < (int)str.size(); ++i){
      char ch[i] = str[i];
  }
  for(int o; o<a+100; a++){
  for(int i = 0;i < a; i++){
    if(ch[i] == "S" && ch[i+1] == "T"){
      for(int j; j < a;j++ ){
        ch[i+j] = ch[i + j + 2];
         
      }
      b = b-2;
    }
  }
}


cout << b << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:3: error: expected initializer before 'for'
   11 |   for(int i = 0; i < (int)str.size(); ++i){
      |   ^~~
a.cc:11:18: error: 'i' was not declared in this scope
   11 |   for(int i = 0; i < (int)str.size(); ++i){
      |                  ^
a.cc:16:8: error: 'ch' was not declared in this scope
   16 |     if(ch[i] == "S" && ch[i+1] == "T"){
      |        ^~
Language: C++

#include<bits/stdc++.h>
#include<string>

using namespace std;

int main(){
  string str;
  cin >> str;
  for(int i=0;i!=200000;i++){
    int a=str.find("ST");
    if(a==-1){
      break;
    }
    if(str.enpty()){
      break;
    }
    str.erase(str.begin()+a,str.begin()+a+1);
  }
  cout << str.size() << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:12: error: 'std::string' {aka 'class std::__cxx11::basic_string<char>'} has no member named 'enpty'; did you mean 'empty'?
   14 |     if(str.enpty()){
      |            ^~~~~
      |            empty
Language: C++

#include<bits/stdc++.h>
#include<string>

using namespace std;

int main(){
  string str;
  cin >> str;
  for(int i=0;i!=100000){
    int a=str.find("ST");
    if(a==-1){
      break;
    }
    str.erase(str.begin()+a,str.begin()+a+1);
  }
  cout << str.size() << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:9:24: error: expected ';' before ')' token
    9 |   for(int i=0;i!=100000){
      |                        ^
      |                        ;
Language: C++

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

int main(){
  string s;
  cin>>s;
  int scnt=0,sum=0;
  for(int i=0;i<s.size();i++){
    if(scnt>0&&s[i]=='T'){
      scnt--;
      sum+=2;
    }
    if(s[i]=='S')scnt++;
  }
  cout<<s.size()-sum<<endl;j
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:15:28: error: 'j' was not declared in this scope
   15 |   cout<<s.size()-sum<<endl;j
      |                            ^
Language: C++

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

int main()
{
    string s;
    cin>>s;
    int x = 0,ans = 0;
    rep(i,n){
        if(s[i]=='S')
            x++;
        else
            x--;
        if(x<0)
            ans++;
    }
    cout << ans << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: 'n' was not declared in this scope
   12 |     rep(i,n){
      |           ^
a.cc:4:40: note: in definition of macro 'rep'
    4 | #define rep(i, n) for (int i = 0; i < (n); i++)
      |                                        ^
Language: C++

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

int main()
{
    string s;
    cin>>s;
    bool a=true;
    while(a){
        rep(i,s.size()-1)
            if(s[i]=='S'&&s[i+1]=='T'){
                s.erase(s.begin()+i,s.begin()+i+2)
                a=false;
                break;
        }
    }
    cout << s.size() << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:15:51: error: expected ';' before 'a'
   15 |                 s.erase(s.begin()+i,s.begin()+i+2)
      |                                                   ^
      |                                                   ;
   16 |                 a=false;
      |                 ~
Language: C++

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

int main()
{
    string s;
    cin>>s;
    bool a=true;
    while(a){
        rep(i,s.size()-1)
            if(s[i]=='S'&&s[i+1]=='T'){
                s.erase(s.begin()+i,s.begin()+i+2)
                a=false;
                break;
        }
    }
    cout << s.size() << endl;
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:13: error: 'i' was not declared in this scope
   10 |         rep(i,s.size()-1)
      |             ^
a.cc:10:9: error: 'rep' was not declared in this scope
   10 |         rep(i,s.size()-1)
      |         ^~~
Language: C++

#include"stdafx.h" 
#include<iostream>
#include<algorithm>
#include<math.h>
#include<cstdio>
#include<ctype.h>
#include<stdio.h>
#include<set>
#include<vector>
#include<map>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<numeric>
#include<string>
using namespace std;
typedef long long ll;
ll dx[] = { 1,1,0,-1,-1,-1,0,1 };
ll dy[] = { 0,1,1,1,0,-1,-1,-1 };
ll prime(ll x) {
	ll i;
	if (x < 2)return 0;
	else if (x == 2) return 1;
	if (x % 2 == 0) return 0;
	for (i = 3; i*i <= x; i += 2) {
		if (x%i == 0) return 0;
	}
	return 1;
}
ll gcd(ll a, ll b) {
	if (a<b) { return gcd(b, a); }
	else if (a%b) { return gcd(b, a%b); }
	else { return b; }
}

ll MOD = 1000000007;
int main() {
	string X;
  	cin>>X;
  	ll x=0,y=0;
  	for(ll i=0; i<X.size(); i++){
      if(X[i]=='S')x++;
      else x--,y++;
    }
  cout<<X.size()-y*2<<endl;
  
  
}

Compiler output:
a.cc:1:9: fatal error: stdafx.h: No such file or directory
    1 | #include"stdafx.h"
      |         ^~~~~~~~~~
compilation terminated.