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

#include <cstdio>
#include <cstring>
#include <vector>
#include <queue>
#include <string>
#include <algorithm>
#include <iostream>
#include <string>
#include <map>
#include <set>
#include <functional>
#include <cctype>
#include <iostream>

using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> PP;
typedef string::const_iterator State;
int q;
string str;

P expression(State &begin,int l,int r);
P term(State &begin,int l,int r);

P term(State &begin,int l,int r){
	if(isdigit(*begin)){
		if(*begin=='0'){
			begin++;
			return P(0,begin-str.begin()-1);
		}
		P ret=P(-2,0);
		if(*begin>r){
			ret=P(r+1,begin-str.begin());
		}
		if((a>(*begin-'0')*10+9)){
			ret=P(l-1,begin-str.begin());
		}
		int v=0;
		while(isdigit(*begin)){
			v*=10;
			v+=*begin-'0';
			begin++;
		}
		if(ret.first==-2){
			if(v>=10)ret=P(v,begin-str.begin()-1);
			else ret=P(v,begin-str.begin()-1);
		}
		return ret;
	}else{
		return expression(begin,l,r);
	}
}

P expression(State &begin,int l,int r){
	if(isdigit(*begin))return term(begin,l,r);
	int z=0;
	if(*begin=='^')z=1;
	begin+=2;
	P tmp=term(a,b);
	P ret=P(-2,-2);
	if(z==0 && tmp.first==0)ret=tmp;
	if(z==1 && tmp.first==99)ret=tmp;
	if(tmp.first!=-1 && z==0 && a>tmp.first)ret=tmp;
	if(tmp.first!=-1 && z==1 && b<tmp.first)ret=tmp;
	begin++;
	int L=l;
	int R=r;
	if(z==0){
		if(tmp.first!=-1)R=min(R,tmp.first-1);
	}else{
		if(tmp.first!=-1)L=max(L,tmp.first+1);
	}
	P tmp2=term(L,R);
	if(tmp.first==-1 && z==0)tmp.first=110;
	if(tmp2.first==-1 && z==0)tmp2.first=110;
	if(ret.first==-2){
		if(z==0)ret.first=min(tmp.first,tmp2.first);
		else ret.first=max(tmp.first,tmp2.first);
		ret.second=tmp2.second;
	}
	begin++;
	return ret;
}

int main(void){
	scanf("%d",&q);
	for(int i=0;i<q;i++){
		cin >> str;
		State begin=str.begin();
		P res=expression(begin,0,99);
		printf("%d %d\n",res.first,res.second+1);
	}
	return 0;
}

Compiler output:
a.cc: In function 'P term(State&, int, int)':
a.cc:36:21: error: 'a' was not declared in this scope
   36 |                 if((a>(*begin-'0')*10+9)){
      |                     ^
a.cc: In function 'P expression(State&, int, int)':
a.cc:60:20: error: 'a' was not declared in this scope
   60 |         P tmp=term(a,b);
      |                    ^
a.cc:60:22: error: 'b' was not declared in this scope
   60 |         P tmp=term(a,b);
      |                      ^
a.cc:74:21: error: invalid initialization of reference of type 'State&' {aka 'std::__cxx11::basic_string<char>::const_iterator&'} from expression of type 'int'
   74 |         P tmp2=term(L,R);
      |                     ^
a.cc:26:15: note: in passing argument 1 of 'P term(State&, int, int)'
   26 | P term(State &begin,int l,int r){
      |        ~~~~~~~^~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<(to);x++)
#define FORR(x,arr) for(auto& x:arr)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

int Q;
int N;
string S;
int ptr,L;


pair<int,int> hoge() {
	if(ptr>=L) return {0,99};
	int x=ptr;
	if(S[x]=='0') {
		ptr++;
		return {0,0};
	}
	else if(S[x]>='1' && S[x]<='9') {
		ptr++;
		if(x==L-1) {
			return {S[x]-'0',(S[x]-'0')*10+9};
		}
		
		if(S[ptr]>='0' && S[ptr]<='9') {
			ptr++;
			return {(S[x]-'0')*10+(S[x+1]-'0'),(S[x]-'0')*10+(S[x+1]-'0')};
		}
		else {
			return {S[x]-'0',S[x]-'0'};
		}
	}
	else if(S[x]=='^' || S[x]=='_') {
		ptr++;
		ptr++;
		if(ptr>=L) return {0,99};
		auto lh=hoge(),rh=lh;
		ptr++;
		if(ptr>=L) {
			rh={0,99};
		}
		else {
			rh=hoge();
		}
		
		
		ptr++;
		if(S[x]=='^') return {max(lh.first,rh.first),max(lh.second,rh.second)};
		else return {min(lh.first,rh.first),min(lh.second,rh.second)};
	}
	
}

void solve() {
	int i,j,k,l,r,x,y; string s;
	cin>>Q;
	while(Q--) {
		ZERO(R);
		cin>>S;
		N=S.size();
		ptr=0;
		parse();
		for(i=1;i<=N;i++) {
			ptr=0;
			L=i;
			auto ret=hoge();
			if(ret.first==ret.second) {
				cout<<ret.first<<" "<<i<<endl;
				break;
			}
		}
	}
	
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false), cin.tie(0);
	FOR(i,argc-1) s+=argv[i+1],s+='\n';
	FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	solve(); return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:67:22: error: 'R' was not declared in this scope
   67 |                 ZERO(R);
      |                      ^
a.cc:11:24: note: in definition of macro 'ZERO'
   11 | #define ZERO(a) memset(a,0,sizeof(a))
      |                        ^
a.cc:71:17: error: 'parse' was not declared in this scope; did you mean 'pause'?
   71 |                 parse();
      |                 ^~~~~
      |                 pause
a.cc: In function 'std::pair<int, int> hoge()':
a.cc:61:1: warning: control reaches end of non-void function [-Wreturn-type]
   61 | }
      | ^
Language: C++

#include <algorithm>
#include <climits>
#include <vector>
#include <iostream>
#include <cstdlib>
#include <cstdio>
using namespace std;
 
typedef long long ll;
#define REP(i,n) for(int i=0;i<(int)n;++i)
 
// Larsson-Sadakane's Suffix array Construction: O(n (log n)^2)
struct SAComp {
  const int h, *g;
  SAComp(int h, int* g) : h(h), g(g) {}
  bool operator() (int a, int b) {
    return a == b ? false : g[a] != g[b] ? g[a] < g[b] : g[a+h] < g[b+h];
  }
};
int *buildSA(char* t, int n) {
  int *g = new int[n+1], *b = new int[n+1], *v = new int[n+1];
  REP(i,n+1) v[i] = i, g[i] = t[i];
  b[0] = 0; b[n] = 0;
 
  sort(v, v+n+1, SAComp(0, g));
  for(int h = 1; b[n] != n ; h *= 2) {
    SAComp comp(h, g);
    sort(v, v+n+1, comp);
    REP(i, n) b[i+1] = b[i] + comp(v[i], v[i+1]);
    REP(i, n+1) g[v[i]] = b[i];
  }
  return v;
}
// Kasai-Lee-Arimura-Arikawa-Park's simple LCP computation: O(n)
int *buildLCP(char *t, int n, int *a) {
  int h = 0, *b = new int[n+1], *lcp = new int[n+1];
  REP(i, n+1) b[a[i]] = i;
  REP(i, n+1) {
    if (b[i]){
      for (int j = a[b[i]-1]; j+h<n && i+h<n && t[j+h] == t[i+h]; ++h);
      lcp[b[i]] = h;
    } else lcp[b[i]] = -1;
    if (h > 0) --h;
  }
  return lcp;
}
 
struct segment_tree_min {
	int n; vector<ll> v;
	segment_tree_min() {}
	segment_tree_min(int _n) {
		for (n = 1; n < _n; n *= 2);
		v = vector<ll>(n * 2 - 1, LLONG_MAX);
	}
	void set(int i, ll x) {
		int k = i + n - 1;
		v[k] = x;
		while (k > 0) {
			k = (k - 1) / 2;
			v[k] = min(v[k * 2 + 1], v[k * 2 + 2]);
		}
	}
	ll _get(int i, int j, int k, int l, int r) {
		if (r <= i || j <= l) return LLONG_MAX;
		if (i <= l && r <= j) return v[k];
		ll vl = _get(i, j, k * 2 + 1, l, (l + r) / 2);
		ll vr = _get(i, j, k * 2 + 2, (l + r) / 2, r);
		return min(vl, vr);
	}
	ll get(int i, int j) { return _get(i, j, 0, 0, n); }
};
 
int N;
char S[100010];
int *sa, *lcp, *rmq, rnk[100010];
int p[100010];
segment_tree_min st;
 
int f(int i, int j) {
	if (i == j) return N - i;
	int x = rnk[i], y = rnk[j];
	if (x > y) swap(x, y);
	return st.get(x + 1, y + 1);
}
 
bool cmp(int i, int j) {
	if (f(i, j) < N - max(i, j)) return rnk[i] < rnk[j];
	int k = N - abs(i - j);
	if (i < j) j = i, i = k;
	else i = j, j = k;
	if (f(i, j) < N - max(i, j)) return rnk[i] < rnk[j];
	return false;
}
 
int main() {
	scanf("%s", S);
	int N = strlen(S);
	sa = buildSA(S, N);
	lcp = buildLCP(S, N, sa);
	vector<int> imos(N + 10);
	for (int i = 1; i < N; i++) {
		imos[lcp[i + 1]]++;
		imos[N - sa[i]]--;
	}
	int x = 0, ma = 0;
	for (int i = 0; i <= N; i++) {
		x += imos[i];
		ma = max(ma, x);
	}
	cout << ma + 1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:97:17: error: 'strlen' was not declared in this scope
   97 |         int N = strlen(S);
      |                 ^~~~~~
a.cc:7:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    6 | #include <cstdio>
  +++ |+#include <cstring>
    7 | using namespace std;
Language: C++

#include <algorithm>
#include <climits>
#include <vector>
#include <iostream>
using namespace std;
 
typedef long long ll;
#define REP(i,n) for(int i=0;i<(int)n;++i)
 
// Larsson-Sadakane's Suffix array Construction: O(n (log n)^2)
struct SAComp {
  const int h, *g;
  SAComp(int h, int* g) : h(h), g(g) {}
  bool operator() (int a, int b) {
    return a == b ? false : g[a] != g[b] ? g[a] < g[b] : g[a+h] < g[b+h];
  }
};
int *buildSA(char* t, int n) {
  int *g = new int[n+1], *b = new int[n+1], *v = new int[n+1];
  REP(i,n+1) v[i] = i, g[i] = t[i];
  b[0] = 0; b[n] = 0;
 
  sort(v, v+n+1, SAComp(0, g));
  for(int h = 1; b[n] != n ; h *= 2) {
    SAComp comp(h, g);
    sort(v, v+n+1, comp);
    REP(i, n) b[i+1] = b[i] + comp(v[i], v[i+1]);
    REP(i, n+1) g[v[i]] = b[i];
  }
  return v;
}
// Kasai-Lee-Arimura-Arikawa-Park's simple LCP computation: O(n)
int *buildLCP(char *t, int n, int *a) {
  int h = 0, *b = new int[n+1], *lcp = new int[n+1];
  REP(i, n+1) b[a[i]] = i;
  REP(i, n+1) {
    if (b[i]){
      for (int j = a[b[i]-1]; j+h<n && i+h<n && t[j+h] == t[i+h]; ++h);
      lcp[b[i]] = h;
    } else lcp[b[i]] = -1;
    if (h > 0) --h;
  }
  return lcp;
}
 
struct segment_tree_min {
	int n; vector<ll> v;
	segment_tree_min() {}
	segment_tree_min(int _n) {
		for (n = 1; n < _n; n *= 2);
		v = vector<ll>(n * 2 - 1, LLONG_MAX);
	}
	void set(int i, ll x) {
		int k = i + n - 1;
		v[k] = x;
		while (k > 0) {
			k = (k - 1) / 2;
			v[k] = min(v[k * 2 + 1], v[k * 2 + 2]);
		}
	}
	ll _get(int i, int j, int k, int l, int r) {
		if (r <= i || j <= l) return LLONG_MAX;
		if (i <= l && r <= j) return v[k];
		ll vl = _get(i, j, k * 2 + 1, l, (l + r) / 2);
		ll vr = _get(i, j, k * 2 + 2, (l + r) / 2, r);
		return min(vl, vr);
	}
	ll get(int i, int j) { return _get(i, j, 0, 0, n); }
};
 
int N;
char S[100010];
int *sa, *lcp, *rmq, rnk[100010];
int p[100010];
segment_tree_min st;
 
int f(int i, int j) {
	if (i == j) return N - i;
	int x = rnk[i], y = rnk[j];
	if (x > y) swap(x, y);
	return st.get(x + 1, y + 1);
}
 
bool cmp(int i, int j) {
	if (f(i, j) < N - max(i, j)) return rnk[i] < rnk[j];
	int k = N - abs(i - j);
	if (i < j) j = i, i = k;
	else i = j, j = k;
	if (f(i, j) < N - max(i, j)) return rnk[i] < rnk[j];
	return false;
}
 
int main() {
	scanf("%s", S);
	int N = strlen(S);
	sa = buildSA(S, N);
	lcp = buildLCP(S, N, sa);
	vector<int> imos(N + 10);
	for (int i = 1; i < N; i++) {
		imos[lcp[i + 1]]++;
		imos[N - sa[i]]--;
	}
	int x = 0, ma = 0;
	for (int i = 0; i <= N; i++) {
		x += imos[i];
		ma = max(ma, x);
	}
	cout << ma + 1 << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:95:17: error: 'strlen' was not declared in this scope
   95 |         int N = strlen(S);
      |                 ^~~~~~
a.cc:5:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    4 | #include <iostream>
  +++ |+#include <cstring>
    5 | using namespace std;
Language: C++

#define _CRT_SECURE_NO_WARNINGS
#define _USE_MATH_DEFINES

#include "bits/stdc++.h"
#define REP(i,a,b) for(int i=a;i<b;++i)
#define rep(i,n) REP(i,0,n)
#define ll long long
#define ull unsigned ll
typedef long double ld;
#define ALL(a) begin(a),end(a)
#define ifnot(a) if(not a)
#define dump(x)  cerr << #x << " = " << (x) << endl
using namespace std;

// #define int ll
#ifdef _MSC_VER
const bool test = true;
#else 
const bool test = false;
#endif

int dx[] = { 0,1,0,-1 };
int dy[] = { 1,0,-1,0 };
#define INF (1 << 28)
ull mod = (int)1e9 + 7;
//.....................
#define MAX (int)1e6 + 5

string T;
set<string> s;
int ans = 0;
a

bool ok(string s1) {
	for (auto s2 : s) {
		int id = 0;
		rep(i, s2.size()) {
			if (s2[i] == s1[id]) id++;
			if (id == s1.size()) return false;
		}
	}
	for (auto s2 : s) {
		int id = 0;
		rep(i, s1.size()) {
			if (s2[id] == s1[i]) id++;
			if (id == s2.size()) return false;
		}
	}
	return true;
}

int dfs(int id) {
	int res = 0;
	if (id == T.size()) {
		if (test) {
			for (auto s2 : s) {
				cerr << s2 << " ";
			}
			cerr << endl;
		}
		if (s.size() > ans) ans = s.size();
		return 1;
	}
	REP(j, id, T.size()) {
		REP(i, 1, T.size() - j + 1) {
			string tmp = T.substr(j, i);
			if (ok(tmp)) {
				s.insert(tmp);
				res += dfs(j + 1);
				s.erase(tmp);
			}
		}
	}
	return res;
}

signed main() {
	cout << setprecision(20) << fixed;

	s.insert("abc");
	dump(ok("ac"));
	dump(ok("cab"));
	s.erase("abc");

	cin >> T;
	if (T.size() > 55) return 0;
	dfs(0);
	cout << ans << endl;
}


Compiler output:
a.cc:32:1: error: 'a' does not name a type
   32 | a
      | ^
a.cc: In function 'int dfs(int)':
a.cc:67:29: error: 'ok' was not declared in this scope
   67 |                         if (ok(tmp)) {
      |                             ^~
a.cc: In function 'int main()':
a.cc:81:14: error: 'ok' was not declared in this scope
   81 |         dump(ok("ac"));
      |              ^~
a.cc:12:42: note: in definition of macro 'dump'
   12 | #define dump(x)  cerr << #x << " = " << (x) << endl
      |                                          ^
Language: C++

#include<cstdio>
#include<utility>
#include<set>
#include<cmath>
#include<algorithm>
#include<cstdlib>
using namespace std;
long long arr[100002];
int l[100002],r[100002],n;
set<pair<int,int> > se;
inline void del(const int& a)
{
	set<pair<int,int> >::iterator it;
	int b=l[a],c=r[a];
	r[b]=c;
	l[c]=b;
	if(b>0)
	{
		it=se.find(make_pair(a-b,b));
		if(it!=se.end())
		{
			se.erase(it);
		}
	}
	if(c<=n)
	{
		it=se.find(make_pair(c-a,a));
		if(it!=se.end())
		{
			se.erase(it);
		}	
	}
	if(b>0 && c<=n && (arr[b]>0)^(arr[c]>0))
	{
		se.insert(make_pair(c-b,b));
	}
	return;
}
int main()
{
	int i,a,b,dis;
	long long x,ans,remain,rein;
	scanf("%d",&n);
	for(i=1;i<=n;++i)
	{
		scanf("%lld",&arr[i]);
	}
	remain=0;
	se.clear();
	for(i=1;i<=n;++i)
	{
		scanf("%lld",&x);
		arr[i]-=x;
		if(arr[i]<0)
		{
			remain-=arr[i];
		}
	}
	for(i=1;i<=n;++i)
	{
		l[i]=i-1;
		r[i]=i+1;
		if( ((arr[i]>0)^(arr[i+1]>0)) && i<n)
		{
			se.insert(make_pair(1,i));
		}
	}
	ans=0;
	while(remain)
	{
//		printf("%lld %d\n",remain,se.size());
		dis=(se.begin())->first;
		a=(se.begin())->second;
		se.erase(se.begin());
		b=r[a];
		rein=min(abs(arr[a]),abs(arr[b]),remain);
		remain-=rein;
//		printf("rein:%lld\n",rein);
		ans+=dis*rein;
		arr[a]+=(arr[a]>0?-rein:rein);
		arr[b]+=(arr[b]>0?-rein:rein);
		if(arr[a]==0)
		{
			del(a);
		}
		if(arr[b]==0)
		{
			del(b);
		}
	}
	printf("%lld\n",ans);
	return 0;
}
/*
2
1 5
3 1

2
*/
/*
5
1 2 3 4 5
3 3 1 1 1

6
*/
/*
27
46 3 4 2 10 2 5 2 6 7 20 13 9 49 3 8 4 3 19 9 3 5 4 13 9 5 7
10 2 5 6 2 6 3 2 2 5 3 11 13 2 2 7 7 3 9 5 13 4 17 2 2 2 4

48
*/
/*
18
3878348 423911 8031742 1035156 24256 10344593 19379 3867285 4481365 1475384 1959412 1383457 164869 4633165 6674637 9732852 10459147 2810788
1236501 770807 4003004 131688 1965412 266841 3980782 565060 816313 192940 541896 250801 217586 3806049 1220252 1161079 31168 2008961

6302172
*/
/*
2
1 99999999999
1234567891 1

1234567890
*/


Compiler output:
In file included from /usr/include/c++/14/bits/stl_tree.h:63,
                 from /usr/include/c++/14/set:62,
                 from a.cc:3:
/usr/include/c++/14/bits/stl_algobase.h: In instantiation of 'constexpr const _Tp& std::min(const _Tp&, const _Tp&, _Compare) [with _Tp = long long int; _Compare = long long int]':
a.cc:76:11:   required from here
   76 |                 rein=min(abs(arr[a]),abs(arr[b]),remain);
      |                      ~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/c++/14/bits/stl_algobase.h:284:17: error: '__comp' cannot be used as a function
  284 |       if (__comp(__b, __a))
      |           ~~~~~~^~~~~~~~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<(to);x++)
#define FORR(x,arr) for(auto& x:arr)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

int T;
double XA,YA,RA;
double XB,YB,RB;

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>T;
	while(T--) {
		cin>>XA>>YA>>RA;
		cin>>XB>>YB>>RB;
		double D=hypot(XA-XB,YA-YB);
		
		double X=0.5/RA;
		double r1=X-1/(RA+D-RB);
		double r2=X-1/(RA+D+RB);
		
		double x = sqrt(c);
		double r3 = 0.5/x;
		double a = 0.5/(x-r1);
		double b = 0.5/(x-r2);
		double r4 = abs(a-b);
		
		double dif=(r4-r3)/2;
		double at = asin(dif/(r3+dif));
		_P("%d\n",(int)(atan(1)*4/at));
	}
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false), cin.tie(0);
	FOR(i,argc-1) s+=argv[i+1],s+='\n';
	FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	solve(); return 0;
}


Compiler output:
a.cc: In function 'void solve()':
a.cc:32:33: error: 'c' was not declared in this scope
   32 |                 double x = sqrt(c);
      |                                 ^
Language: C++

#include<stack>
using namespace std;

int main()
{
	stack<char> x;
	string a;
	char ex='T';
	cin >> a;
	for(int i=0;i<a.length();i++)
	{
		x.push(a[i]);
		if (ex == 'S' && x.top() == 'T')
		{
			x.pop();
			x.pop();
		}
		if (x.size() == 0)ex = 'T';
		else
			ex = x.top();
	} 
	cout << x.size () << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'string' was not declared in this scope
    7 |         string a;
      |         ^~~~~~
a.cc:2:1: note: 'std::string' is defined in header '<string>'; this is probably fixable by adding '#include <string>'
    1 | #include<stack>
  +++ |+#include <string>
    2 | using namespace std;
a.cc:9:9: 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<stack>
  +++ |+#include <iostream>
    2 | using namespace std;
a.cc:9:16: error: 'a' was not declared in this scope
    9 |         cin >> a;
      |                ^
a.cc:22:9: error: 'cout' was not declared in this scope
   22 |         cout << x.size () << endl;
      |         ^~~~
a.cc:22:9: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:22:30: error: 'endl' was not declared in this scope
   22 |         cout << x.size () << endl;
      |                              ^~~~
a.cc:2:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
    1 | #include<stack>
  +++ |+#include <ostream>
    2 | using namespace std;
Language: C++

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

# define ll long long

int main(){
 
  string S;
  cin >> S;
  vector<char> stack;
  
  for(int i=0; i<S.size(); i++){
    if(S[i] == 'S') stack.push_back(s[i]);
    else {
      if(stack.empty()) stack.push_back(s[i]);
      else stack.pop_back();
    }
  }
  
  cout << stack.size() << endl;
  return 0;
} 



Compiler output:
a.cc: In function 'int main()':
a.cc:15:37: error: 's' was not declared in this scope
   15 |     if(S[i] == 'S') stack.push_back(s[i]);
      |                                     ^
a.cc:17:41: error: 's' was not declared in this scope
   17 |       if(stack.empty()) stack.push_back(s[i]);
      |                                         ^
Language: C++

#include<iostream>
#include<cstdio>
#include<string>
using namespace std;
int main()
{
	string a;
	cin>>a;
	int tmp=a.find("ST");
	while(a.length()>0&&tmp>=0&&tmp!=string::npos)
	{
		a.erase(tmp,2);
		tmp=a.find("ST",x);
		if(tmp==string::npos)
			tmp=-1;
	}
	cout<<a.length()<<endl;
	return 0;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:13:33: error: 'x' was not declared in this scope
   13 |                 tmp=a.find("ST",x);
      |                                 ^
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);		
		String str = sc.next();
        int s = 0;
		int t = 0;
        for(int i=0;i<str.length();i++){if(s.charAt(i)=='T'){t++;} 
                                        else{break;}
                                       }
        for(int i=str.length()-1;i>=0;i--){if(s.charAt(i)=='S'){s++;} 
                                           else{break;}
                                          }
		System.out.println(Math.max(2*s,2*t));
	}
}


Compiler output:
Main.java:8: error: int cannot be dereferenced
        for(int i=0;i<str.length();i++){if(s.charAt(i)=='T'){t++;} 
                                            ^
Main.java:11: error: int cannot be dereferenced
        for(int i=str.length()-1;i>=0;i--){if(s.charAt(i)=='S'){s++;} 
                                               ^
2 errors
Language: Java

import java.util.*;
public class Main {
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);		
		String str = sc.next();
        int s = 0;
		int t = 0;
        for(int i=0;i<str.length();i++){if(s.charAt(i)=='T'){t++;} 
                                        else{break;}
                                       }
        for(int i=str.length()-1;i>=0;i--){if(s.charAt(i)=='S'){s++;} 
                                           else{break;}
                                          }
		System.out.println(Math.max(2*s,2*t);
	}
}

Compiler output:
Main.java:14: error: ')' or ',' expected
		System.out.println(Math.max(2*s,2*t);
		                                    ^
1 error
Language: C++

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

int main() {
  string s;
  cin >> s;
  
  int a=0,b=0;
  
  for(int i=0;i<s.size();i++){
    
    if(s[i] == 'S'){
       a++;
    }
    
    else{
      if(a>0){
        a--;
      }
      b++;
    }
    
    cout << a+b << endl;
    
  }
     

Compiler output:
a.cc: In function 'int main()':
a.cc:26:4: error: expected '}' at end of input
   26 |   }
      |    ^
a.cc:5:12: note: to match this '{'
    5 | int main() {
      |            ^
Language: C++

#include <iostream>
#include <algorithm>
#include <cstdio>
#include <vector>
#include <math.h>
#include <iomanip>
#include <bitset>
#include <string>
#include <cstring>
#include <stdlib.h>
#include <utility>
#include <set>
#include <queue>
using namespace std;
typedef long long int ll;
typedef long double ld;
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
const long long INF = 1LL << 60;
typedef pair<ll,ll> pairs;
vector<pairs> p;
bool pairCompare(const pair<double,ll>& firstElof, const pair<double,ll>& secondElof){
    return firstElof.first < secondElof.first;
}
bool pairCompareSecond(const pair<double,ll>& firstElof, const pair<double,ll>& secondElof){
    return firstElof.second < secondElof.second;
}
#define MAX_N 100100
#define MOD 1000000007
bool x[MAX_N];
ll num[MAX_N];
ll fibl[MAX_N]={0};
// 四方向への移動ベクトル
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};

ll fib(ll a){
    if (fibl[a]!=0)return fibl[a];
    if (a==0){
        return 0;
    }else if (a==1){
        return 1;
    }
    return fibl[a]=fib(a-1)+fib(a-2);
}
 
ll eratosthenes(ll n) {
    int p = 0;
    for (ll i=0; i<=n; ++i) x[i] = true;
    x[0] = x[1] = false;
    for(int i=2; i<=n; ++i) {
        if(x[i]) {
            p++;
            for(int j=2*i; j<=n; j+=i) x[j] = false;
        }
        
        num[i] = p;
    }
    return p;
}
 
ll gcd(ll a,ll b){
    if (a%b==0)return(b);
    else return(gcd(b,a%b));
}
 
ll keta(ll N){
    int tmp{};
    while( N > 0 ){
        tmp += ( N % 10 );
        N /= 10;
    }
    N = tmp;
    return N;
}

void  base_num(ll data,ll base){
    if(data==0) return;
    ll next=abs(data)%abs(base);
    if(data<0) next=(abs(base)-next)%abs(base);
    base_num((data-next)/base,base);
    cout << next;
}



int main(){
    string s;
    cin >> s;
    ll ans=0,c=0;
    for (ll i=0;i<s.size();i++){
        if (S[i]=='S')
            c++;
        else{
            if(c==0)ans++
                else c++;
        }
    }
    ans+=c;
    cout << ans << endl;
    return 0;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:92:13: error: 'S' was not declared in this scope
   92 |         if (S[i]=='S')
      |             ^
a.cc:95:26: error: expected ';' before 'else'
   95 |             if(c==0)ans++
      |                          ^
      |                          ;
   96 |                 else c++;
      |                 ~~~~
Language: C++

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

void solve(std::string X) {
  int tmp = 0;
  int tmp1 = 0;
  for(int i= 0,i<X.size();i++){
    if(X[i] == 'T'){
      if(tmp1 == 0)tmp++;
      else tmp1++;
    }
    else tmp1--;
  }
  cout<<tmp-tmp1;;
}

// Generated by 1.1.6 https://github.com/kyuridenamida/atcoder-tools  (tips: You
// use the default template now. You can remove this line by using your custom
// template)
int main() {
  std::string X;
  std::cin >> X;
  solve(X);
  return 0;
}


Compiler output:
a.cc: In function 'void solve(std::string)':
a.cc:7:17: error: expected ';' before '<' token
    7 |   for(int i= 0,i<X.size();i++){
      |                 ^
      |                 ;
a.cc:7:17: error: expected primary-expression before '<' token
Language: C++

x = input()

while True:
    n = len(x)
    fl = 0
    for i in range(n-1):
        if x[i] == "S" and x[i+1] == "T":
            x = x[:i] + x[i+2:]
            fl = 1
            break
            
    if fl == 0:
        break
        
print(len(x))

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

#include<iostream>
#include<stdio.h>
#include<string.h>
#include<stack>
const int maxn=2e5+5;
using namespace std;
int main()
{
	string s;
	cin>>s;
	stack<char> q;
	for(int i=0;i<s.size();i++)
	{
		if(q.size==0)
		{
			q.push(s[i]);
			continue;
		}
		char temp=q.top();
		q.push(s[i]);
		if(temp=='S'&& s[i]=='T')
		{
			q.pop();
			q.pop();
		}	
	}
	cout<<q.size()<<endl;
	return 0;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:14:22: error: invalid use of member function 'std::stack<_Tp, _Sequence>::size_type std::stack<_Tp, _Sequence>::size() const [with _Tp = char; _Sequence = std::deque<char, std::allocator<char> >; size_type = long unsigned int]' (did you forget the '()' ?)
   14 |                 if(q.size==0)
      |                    ~~^~~~
      |                          ()
Language: C++

#include<iostream>
#include<stack>
using namespace std;
stack<char>s;

int main()
{
	char a;
	int res=0;
	while(scanf("%c",&a)!=EOF)
	{
		res++;
		if(ch=='S') s.push(a);
		else
		{
			if(!s.empty())
			{
				s.pop();
				res=res-2;
			}
		}
	}
	cout<<res<<endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:13:20: error: 'ch' was not declared in this scope
   13 |                 if(ch=='S') s.push(a);
      |                    ^~
Language: C++

#include<stdio.h>
#include<string.h>
char s1[200005];
char s2[3]={"ST"};
char t[200005];
int main ()
{
	gets(s1);
	char *p; 
	while((p=strstr(s1,s2))!=NULL)
	{
		strcpy(t,p+strlen(s2));
		*p='\0'; 
		strcat(s1,t); 
	}
	printf("%d",strlen(s1));
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:8:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
    8 |         gets(s1);
      |         ^~~~
      |         getw
Language: C++

#include <iostream>
#include <string>

using namespace std;
int main(){
    string a;
    for(int i=0;i)
    string b="ST";
    string::size_type idx;
    idx=a.find(b);
    if(idx == string::npos )
        cout << "not found\n";
    else
        cout <<"found\n"; 
    idx=a.find(c);
    if(idx == string::npos )
        cout << "not found\n";
    else
        cout <<"found\n"; 
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: expected ';' before ')' token
    7 |     for(int i=0;i)
      |                  ^
      |                  ;
a.cc:10:16: error: 'b' was not declared in this scope
   10 |     idx=a.find(b);
      |                ^
a.cc:15:16: error: 'c' was not declared in this scope
   15 |     idx=a.find(c);
      |                ^
Language: C++

const long long MAXN= 1e1000;
string str;
int pos1,pos2;
int main()
{
    pos1=0,pos2=1;
    cin>>str;
    int cnt=0;
    while(pos2<=str.size() && cnt<MAXN )
    {

        while (!(str[pos1] == 'S' && str[pos2] == 'T')) {
            pos1++, pos2++;
            if (pos2 > str.size()) break;
        }
        if (pos2 > str.size()) break;
        str.erase(pos1, 2);
        cnt++;
        pos1--,pos2--;
        if(pos1<0) break;
    }
    cout<<str.size();
    return 0;
}

Compiler output:
a.cc:1:1: warning: floating constant exceeds range of 'double' [-Woverflow]
    1 | const long long MAXN= 1e1000;
      | ^~~~~
a.cc:1:23: warning: overflow in conversion from 'double' to 'long long int' changes value from '+Inf' to '9223372036854775807' [-Woverflow]
    1 | const long long MAXN= 1e1000;
      |                       ^~~~~~
a.cc:2:1: error: 'string' does not name a type
    2 | string str;
      | ^~~~~~
a.cc: In function 'int main()':
a.cc:7:5: error: 'cin' was not declared in this scope
    7 |     cin>>str;
      |     ^~~
a.cc:7:10: error: 'str' was not declared in this scope; did you mean 'std'?
    7 |     cin>>str;
      |          ^~~
      |          std
a.cc:22:5: error: 'cout' was not declared in this scope
   22 |     cout<<str.size();
      |     ^~~~
Language: C++

#include <stdio.h>
#include <iostream>
#include <algorithm>
#include <cstring>
#include <cmath>
#include <string>
#include <queue>
using namespace std;
const int N=200500; 
char a[N];
int main() 
{
	int flag=1;
	gets(a);
	int size;
	while(flag==1)
	{
		size=strlen(a);
		for(int i=0;i<size;i++)
		{
			if(a[i]=='S'&&a[i+1]=='T')
			{
				flag=1;
				for(int j=i;j<size;j++)
					a[j]=a[j+2];
				//puts(a);
				goto mark;
			}
			else 
			{
				flag=0;
			}
		}
		mark:
		size=strlen(a);
		if(size==2&&a[0]=='S'&&a[1]=='T')
		{
			printf("0\n");
			return 0;
		}
			 
	}
	printf("%d\n",size);
	return 0;
 } 

Compiler output:
a.cc: In function 'int main()':
a.cc:14:9: error: 'gets' was not declared in this scope; did you mean 'getw'?
   14 |         gets(a);
      |         ^~~~
      |         getw
Language: C++

#include<stdio.h>
#include<string.h>
const int N=2e6+1;
char a[N];
char temp[N];
/*
int main(void)
{
    scanf("%s",a);
    char b[2]={'S','T'};
    char *p;    
    while((p=strstr(a,b)) != NULL) 
	{ 
        *p = '\0';
        strcpy (temp, p+strlen(b)); 
        strcat (a, temp);
    } 
    long long ans=strlen(a);
    printf("%lld\n",ans);
    return 0;
}*/
int main ()
{
    gets(a);
	char b[2]={'S','T'};
    int i = 0, j = 0, count = 0;
    while (a[i] != NULL) 
    { 
        if (b[count]==NULL && count>0) 
        {
            j = i - count;
            while (a[i] != NULL)
			{
                a[j++] = a[i++];
            }
            a[j] = NULL;
            i = 0;
            count = 0;
            continue;
        } 
        if (a[i] == b[count]) 
		{
            count ++;
        } 
		else if (a[i] == b[0]) 
		{
            count = 1; 
        } 
		else 
		{
            count = 0;
        }
        i++;//i用来标记a中的位置
    }
    if (b[count]==NULL && count>0) 
	{
        a[i-count] = NULL; 
    } 
    long long ans=strlen(a);
    printf("%d",ans);
    return 0; 
}


Compiler output:
a.cc: In function 'int main()':
a.cc:24:5: error: 'gets' was not declared in this scope; did you mean 'getw'?
   24 |     gets(a);
      |     ^~~~
      |     getw
a.cc:27:20: warning: NULL used in arithmetic [-Wpointer-arith]
   27 |     while (a[i] != NULL)
      |                    ^~~~
a.cc:29:23: warning: NULL used in arithmetic [-Wpointer-arith]
   29 |         if (b[count]==NULL && count>0)
      |                       ^~~~
a.cc:32:28: warning: NULL used in arithmetic [-Wpointer-arith]
   32 |             while (a[i] != NULL)
      |                            ^~~~
a.cc:36:20: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null]
   36 |             a[j] = NULL;
      |                    ^~~~
a.cc:55:19: warning: NULL used in arithmetic [-Wpointer-arith]
   55 |     if (b[count]==NULL && count>0)
      |                   ^~~~
a.cc:57:22: warning: converting to non-pointer type 'char' from NULL [-Wconversion-null]
   57 |         a[i-count] = NULL;
      |                      ^~~~
Language: C++

#include<iostream>
#include<stdio.h>
#include<vector>
using namespace std;
vector<char> v;
char x;
int main()
{
	while (scanf_s("%c", &x))
	{
		v.push_back(x);
	}
	int num = 0;
	for (vector<char>::iterator it = v.begin() + 1; it != v.end(); it++)
	{
		if (*(it - 1) == 'S' && *it == 'T')
		{
			v.erase(it - 1);
			v.erase(it);
			num++;
			it = v.begin() + 1;
		}
		if (num == 10 ^ 10000)break;
	}
		cout << v.size();
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:16: error: 'scanf_s' was not declared in this scope; did you mean 'scanf'?
    9 |         while (scanf_s("%c", &x))
      |                ^~~~~~~
      |                scanf
Language: C++

#include<bits/stdc++.h>
using namespace std;
char c[200000+5];
int main()
{
	gets(c);
	int len=strlen(c);
	stack<char>ans;
	for(int i=0;i<len;++i){
		if(ans.empty()){
			ans.push(c[i]);
			continue;
		}
		if(ans.top()=='S'&&c[i]=='T'){
			ans.pop();
		}
		else{
			ans.push(c[i]);
		}
	}
	cout<<ans.size()<<endl;
	return 0;
 } 

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

#include<iostream>
#include<cstdio>
#include<cstring>
#include<stack>
using namespace std;
stack<char>q;
int main(){
	string s;
	cin>>s;
	int len=s.size() ;
	for(int i=0;i<len;i++){
		if(s[i]=='S')q.push('S');
		else{
			if(q.size()==0)q.push('T');
			else{
				char c=q.top();
				if(c=='S')q.pop();
				SSelse q.push('T');
			}
			
		}
	}
	cout<<q.size()<<endl;
} 

Compiler output:
a.cc: In function 'int main()':
a.cc:18:33: error: 'SSelse' was not declared in this scope
   18 |                                 SSelse q.push('T');
      |                                 ^~~~~~
Language: C

#include <iostream>
#include <string>
using namespace std;
int main()
{
    string s;
    cin >> s;
    for (int i = 0; i < s.length()-1; i++) {
        if (s[i] == 'S'&&s[i+1]=='T') {
            s.erase(i, 2);
            if (i > 0) {
                i = i - 2;
            }
            else {
                i = i - 1;
            }
        }
        if (s.empty()) {
            break;
        }


    }
    if (s.empty()) {
        cout << 0 << endl;
    }
    else {
        cout << s.size() << endl;
    }
 
}

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

#include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0;i<n;i++)
#define erep(i,n) for(int i = 0;i<=n;i++)
#define rep1(i,n) for(int i = 1;i<n;i++)
#define erep1(i,n) for(int i = 1;i<=n;i++)
typedef long long ll;
#define vint vector<int>
#define vvint vector<vector<int>>
#define vstring vector<string>
#define vll vector<ll>
#define vbool vector<bool>
#define INF 100000000

bool solve(int i,int m);

int main(){
  int scount = 0;
  int tcount = 0;
  string s;
  cin >> s;
  int ss = s.size();
  int ans = ss;
  rep(i,ss){
    if(s[i] == 'T'){
      tcount++;
      while(tcount > 0 && scount > 0){
        ans -= 2;
        tcount--;
        scount--;
      }
    }
    if(s[i] == 'S'){
      scount++;
      tcount = 0;
  }
  cout << ans << endl;
}




Compiler output:
a.cc: In function 'int main()':
a.cc:38:2: error: expected '}' at end of input
   38 | }
      |  ^
a.cc:17:11: note: to match this '{'
   17 | int main(){
      |           ^
Language: C++

#include <bits/stdc++.h>
#define rep(i,n)for(long long i=0;i<(n);i++)
using namespace std;
typedef long long ll;
const int MOD=1e9+7;
const int MAX = 1000000;
const int INF = 1e9;
const double pi=acos(-1);


int main(){
  int n;
  string s;
  cin >>s;
  n=s.size();
  int ans=n,sums=0;
  rep(i,n){
    if(s[i]=='S'){
      sums++;
    }
    else{
      if(sums){
        sums--;
        ans-=2;
      }
    }
  }
 
  cout << st.size() << endl;
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:29:11: error: 'st' was not declared in this scope; did you mean 's'?
   29 |   cout << st.size() << endl;
      |           ^~
      |           s
Language: C++

#include <cstdio>
#include <cstring>
int main(){
    char a[];
    int len = strlen(a);
    for(int i = 0;i < len;i++){
        scanf("%c",&a[i]);
    }
    for(int i = 0;i < len;i++){
        if(a[i]=='S'&&a[i+1]=='T')len-=2;
    }
    printf("%d",len);
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:4:10: error: storage size of 'a' isn't known
    4 |     char a[];
      |          ^
Language: C++

#include<bits/stdc++.h>
using namespace std;
#define outc cout
#define int long long
signed main(){
  int b=0,f=0,g=0,c;
  string a;
  cin>>a;
  c=a.size();
  for(int i=0;i<a.size();i++){
    if(a[i]=='S') b++;
    if(b&&a[i]=='T') b--,c-=2;
  }
  cout<<c<

Compiler output:
a.cc: In function 'int main()':
a.cc:14:11: error: expected primary-expression at end of input
   14 |   cout<<c<
      |           ^
a.cc:14:11: error: expected '}' at end of input
a.cc:5:14: note: to match this '{'
    5 | signed main(){
      |              ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int sloution(int st, int en)
{	
  int min=a[st];
  int minpos=st;
  for(int i=st;i<=en;i++){
    if(min>a[i]){
      min=a[i];
      minpos=i;
    }
  }
  int offset=(minpos-st)>(en-minpos)?(en-minpos+1):(minpos-st+1);
  int res=min*(1+offset)*offset+(en-st-2*minpos);
  return res+sloution(st,minpos-1)+sloution(minpos+1,en)
}

int main(){
  int N;
  cin>>N;
  extern int a[N];
  for(int i=0;i<N;i++){
    cin>>a[i];
  }
return sloution(0, N-1);

}


Compiler output:
a.cc: In function 'int sloution(int, int)':
a.cc:5:11: error: 'a' was not declared in this scope
    5 |   int min=a[st];
      |           ^
a.cc:15:57: error: expected ';' before '}' token
   15 |   return res+sloution(st,minpos-1)+sloution(minpos+1,en)
      |                                                         ^
      |                                                         ;
   16 | }
      | ~                                                        
a.cc: In function 'int main()':
a.cc:21:14: error: storage size of 'a' isn't constant
   21 |   extern int a[N];
      |              ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
int sloution(int st, int en)
{	
  int min=a[st];
  int minpos=st;
  for(int i=st;i<=en;i++){
    if(min>a[i]){
      min=a[i];
      minpos=i;
    }
  }
  int offset=(minpos-st)>(en-minpos)?(en-minpos+1):(minps-st+1);
  int res=min*(1+offset)*offset+(en-st-2*minpos);
  return res+sloution(st,minpos-1)+sloution(minpos+1,en)
}

int main(){
  int N;
  cin>>N;
  int a[N];
  for(int i:N){
    cin>>a[i];
  }
return sloution(0, N-1);

}

Compiler output:
a.cc: In function 'int sloution(int, int)':
a.cc:5:11: error: 'a' was not declared in this scope
    5 |   int min=a[st];
      |           ^
a.cc:13:53: error: 'minps' was not declared in this scope; did you mean 'minpos'?
   13 |   int offset=(minpos-st)>(en-minpos)?(en-minpos+1):(minps-st+1);
      |                                                     ^~~~~
      |                                                     minpos
a.cc:15:57: error: expected ';' before '}' token
   15 |   return res+sloution(st,minpos-1)+sloution(minpos+1,en)
      |                                                         ^
      |                                                         ;
   16 | }
      | ~                                                        
a.cc: In function 'int main()':
a.cc:22:13: error: 'begin' was not declared in this scope
   22 |   for(int i:N){
      |             ^
a.cc:22:13: note: suggested alternatives:
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:166,
                 from a.cc:1:
/usr/include/c++/14/valarray:1238:5: note:   'std::begin'
 1238 |     begin(const valarray<_Tp>& __va) noexcept
      |     ^~~~~
In file included from /usr/include/c++/14/filesystem:53,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:200:
/usr/include/c++/14/bits/fs_dir.h:608:3: note:   'std::filesystem::__cxx11::begin'
  608 |   begin(recursive_directory_iterator __iter) noexcept
      |   ^~~~~
a.cc:22:13: error: 'end' was not declared in this scope
   22 |   for(int i:N){
      |             ^
a.cc:22:13: note: suggested alternatives:
/usr/include/c++/14/valarray:1265:5: note:   'std::end'
 1265 |     end(const valarray<_Tp>& __va) noexcept
      |     ^~~
/usr/include/c++/14/bits/fs_dir.h:613:3: note:   'std::filesystem::__cxx11::end'
  613 |   end(recursive_directory_iterator) noexcept
      |   ^~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
int main(){ 
int count=0;
int res=0;
char cur='A';
while(cur){
cin.getchar()>>cur;
if(cur=='S')
  count++;
else if(cur=='T')
  count--;
if(count<0){
  res++;
  count=0;
}
}
 cout<<2*res<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:8:5: error: 'std::istream' {aka 'class std::basic_istream<char>'} has no member named 'getchar'
    8 | cin.getchar()>>cur;
      |     ^~~~~~~
Language: C++

include<iostream>
using namespace std;
int main(){ 
int count=0;
int res=0;
char cur='A';
while(cur){
cin.getchar()>>cur;
if(cur=='S')
  count++;
else if(cur=='T')
  count--;
if(count<0){
  res++;
  count=0;
}
}
 cout<<2*res<<endl;
}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<iostream>
      | ^~~~~~~
a.cc: In function 'int main()':
a.cc:8:1: error: 'cin' was not declared in this scope
    8 | cin.getchar()>>cur;
      | ^~~
a.cc:18:2: error: 'cout' was not declared in this scope; did you mean 'count'?
   18 |  cout<<2*res<<endl;
      |  ^~~~
      |  count
a.cc:18:15: error: 'endl' was not declared in this scope
   18 |  cout<<2*res<<endl;
      |               ^~~~
Language: C++

include<iostream>
using namespace std;

int count=0;
int res=0;
char cur;
while(cur){
cin.getchar(X)>>cur;
if(cur=='S')
  count++;
else if(cur=='T')
  count--;
if(count<0){
  res++;
  count++;
}
}

}

Compiler output:
a.cc:1:1: error: 'include' does not name a type
    1 | include<iostream>
      | ^~~~~~~
a.cc:7:1: error: expected unqualified-id before 'while'
    7 | while(cur){
      | ^~~~~
a.cc:19:1: error: expected declaration before '}' token
   19 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
const long double PI = acos(-1);
typedef long long ll;
typedef pair<int64_t,int64_t> pll;
int dx[]={1,-1,0,0,1,-1,1,-1};
int dy[]={0,0,1,-1,1,-1,-1,1};
#define INF (2147483647)
#define mod (1000000007)
#define limit (7368791)
#define rep(i,a,b) for (int64_t i = (a); i < (b); i++)
#define REP(i,n) rep(i,0,n)
#define ALL(a) begin(a),end(a)
#define sz(s) (s).size()
#define pb push_back
#define mp make_pair
#define fi first
#define se second

void solve()
{   
    stack<char>s;
    char x;
    while(cin>>x){
        if(x=='T'){if(s.empty()||s.top()=='T')s.push('T');else if(s.top()=='S')s.pop();}
        else(x=='S')s.push('S');
    }cout<<s.size()<<endl;
}


int main()
{ 
    cin.tie(0);
	ios::sync_with_stdio(false);
    solve();
    return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:26:21: error: expected ';' before 's'
   26 |         else(x=='S')s.push('S');
      |                     ^
      |                     ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
const long double PI = acos(-1);
typedef long long ll;
typedef pair<int64_t,int64_t> pll;
int dx[]={1,-1,0,0,1,-1,1,-1};
int dy[]={0,0,1,-1,1,-1,-1,1};
#define INF (2147483647)
#define mod (1000000007)
#define limit (7368791)
#define rep(i,a,b) for (int64_t i = (a); i < (b); i++)
#define REP(i,n) rep(i,0,n)
#define ALL(a) begin(a),end(a)
#define sz(s) (s).size()
#define pb push_back
#define mp make_pair
#define fi first
#define se second

void solve()
{   
    stack<char>s;
    char x;
    while(cin>>x){
        if(x=='T'){if(s.empty()||s.top()=='T')s.push('T');else if(s.top()=='S')s.pop();
        else(x=='S')s.push('S')
    }cout<<s.size()<<endl;
}


int main()
{ 
    cin.tie(0);
	ios::sync_with_stdio(false);
    solve();
    return 0;
}

Compiler output:
a.cc: In function 'void solve()':
a.cc:26:21: error: expected ';' before 's'
   26 |         else(x=='S')s.push('S')
      |                     ^
      |                     ;
a.cc:31:9: warning: empty parentheses were disambiguated as a function declaration [-Wvexing-parse]
   31 | int main()
      |         ^~
a.cc:31:9: note: remove parentheses to default-initialize a variable
   31 | int main()
      |         ^~
      |         --
a.cc:31:9: note: or replace parentheses with braces to value-initialize a variable
a.cc:32:1: error: a function-definition is not allowed here before '{' token
   32 | {
      | ^
a.cc:37:2: error: expected '}' at end of input
   37 | }
      |  ^
a.cc:21:1: note: to match this '{'
   21 | {
      | ^
Language: C++

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

int main(){
  string s;
  cin>>s;
  ll a=0,b=0,sum=0,n=s.size();
  bool flag=false;
  for(int i=0;i<n-1;i++){
    if(s[i]=='S'&&s[i+1]=='S') a++;
    else if(s[i]=='S'&&s[i+1]=='T') a++;
    else if(s[i]=='T'&&s[i+1]=='T') b++;
    else{
      b++;
      sum+=min(a,b);
      a=max(0,a-b);
      b=0;
    }
  }
  sum+=min(a,b);
  cout<<n-2*sum;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:17:12: error: no matching function for call to 'max(int, ll)'
   17 |       a=max(0,a-b);
      |         ~~~^~~~~~~
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:17:12: note:   deduced conflicting types for parameter 'const _Tp' ('int' and 'll' {aka 'long long int'})
   17 |       a=max(0,a-b);
      |         ~~~^~~~~~~
/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:17:12: note:   mismatched types 'std::initializer_list<_Tp>' and 'int'
   17 |       a=max(0,a-b);
      |         ~~~^~~~~~~
Language: C++

S = input()
ans = 0
pos = 0
scount = 0

while pos < len(S):
    while pos <len(S) and S[pos] == 'T':
        pos += 1
        ans += 1
    if pos >= len(S):
        break

    while pos <len(S) and S[pos] == 'S':
        pos += 1
        scount += 1
    if pos >= len(S):
        ans += scount
        break

    tcount = 0
    while pos < len(S) and S[pos] == 'T':
        pos += 1
        tcount += 1
    if pos >= len(S):
        ans += abs(scount-tcount)
        break
      
    if scount >= tcount:
        scount = scount -tcount
    else: #scount < tcount
        ans += tcount-scount
        scount = 0

print(ans)


Compiler output:
a.cc:30:11: error: stray '#' in program
   30 |     else: #scount < tcount
      |           ^
a.cc:1:1: error: 'S' does not name a type
    1 | S = input()
      | ^