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

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

int N;
vector<string> ans;
string out;


int main() {
    cin >> N;
    ans = vector<string>(N, "n");
    visit = vector<bool>(N, false);
    cout << "?";
    for (int i = 1; i <= N; i++) cout << " " << i;
    cout << endl << flush;
    string color, c;
    cin >> color;
    if (c == "-1") return 0;
    int left = 1;
    int right = N+1;
    while (left < right - 1) {
        int center = (left + right) / 2
        cout << "?";
        for (int i = center; i < center+N; i++) cout << " " << i;
        cout << endl << flush;
        cin >> c;
        if (c == "-1") return 0;
        if (c == color) left center;
        else right = center;
    }
    ans[left-1] = color;
    unordered_map<string, string> dict;
    dict["Blue"] = "B";
    dict["Red"] = "R";
    for (int i = left - 1; i > 0; i--) {
        cout << "? " << i;
        for (int j = right; j < j+N-1; j++) cout << " " << j;
        cout << endl << flush;
        cin >> c;
        if (c == "-1") return 0;
        ans[i-1] = dict[c];
    }
    for (int i = right+N-1; i <= 2*N; i++) {
        cout << "? " << i;
        for (int j = right; j < j+N-1; j++) cout << " " << j;
        cout << endl << flush;
        cin >> c;
        if (c == "-1") return 0;
        ans[i-1] = dict[c];
    }
    vector<int> x; 
    int r = 0, b = 0, half = N / 2;
    rep(i, N) {
        if (ans[i] == "R") {
            if (r < half) {
                r++;
                x.push_back(i+1);
            }
        }
        else if (ans[i] == "B") {
            if (b < half) {
                b++;
                x.push_back(i+1);
            }
        }
    }
    for (int i = right; i < right+N; i++) {
        cout << "? " << i;
        for (int j : x) cout << " " << j;
        cout << endl << flush;
        cin >> c;
        if (c == "-1") return 0;
        ans[i-1] = dict[c];
    }
    cout << "!";
    for (int i : x) cout << " " << i;
    cout << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:14:34: error: overloaded function with no contextual type information
   14 |     visit = vector<bool>(N, false);
      |                                  ^
a.cc:25:9: error: expected ',' or ';' before 'cout'
   25 |         cout << "?";
      |         ^~~~
a.cc:30:29: error: expected ';' before 'center'
   30 |         if (c == color) left center;
      |                             ^~~~~~~
      |                             ;
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define rep(i,N) for(int i=0,i##_max=(N);i<i##_max;++i)
#define repp(i,l,r) for(int i=(l),i##_max=(r);i<i##_max;++i)
#define per(i,N) for(int i=(N)-1;i>=0;--i)
#define perr(i,l,r) for(int i=r-1,i##_min(l);i>=i##_min;--i)
#define all(arr) (arr).begin(), (arr).end()
#define SP << " " <<
#define SPF << " "
#define SPEEDUP cin.tie(0);ios::sync_with_stdio(false);
#define MAX_I INT_MAX //1e9
#define MIN_I INT_MIN //-1e9
#define MAX_UI UINT_MAX //1e9
#define MAX_LL LLONG_MAX //1e18
#define MIN_LL LLONG_MIN //-1e18
#define MAX_ULL ULLONG_MAX //1e19
  typedef long long ll;
  typedef pair<int,int> PII;
  typedef pair<char,char> PCC;
  typedef pair<ll,ll> PLL;
  typedef pair<char,int> PCI;
  typedef pair<int,char> PIC;
  typedef pair<ll,int> PLI;
  typedef pair<int,ll> PIL; 
  typedef pair<ll,char> PLC; 
  typedef pair<char,ll> PCL; 

inline void YesNo(bool b){ cout << (b?"Yes" : "No") << endl;}
inline void YESNO(bool b){ cout << (b?"YES" : "NO") << endl;}
inline void Yay(bool b){ cout << (b?"Yay!" : ":(") << endl;}

void p_N(int x,int N){
  cout << "?" SPF;
  repp(i,x,x+N) cout << i+1 SPF;
  cout << endl;
  fflush(stdout);
}

void p_N_1(int x, int N){
  cout << "?" SPF;
  repp(i,x,x+N-1)cout << i+1 SPF;
}

void p(int x, int N){
  cout << "?" SPF;
  rep(i,2*N){
    if(i==x){
      i+=N;
      continue;
    }
    cout << i+1 SPF;
  }
}

int main(void){
  SPEEDUP
  cout << setprecision(15);
  int N;cin >> N;
  map<string,int> mp;
  mp["Blue"] = 0;
  mp["Red"] = 1;
  map<int,char> m;
  m[0] = 'B';
  m[1] = 'R';

  int l = 0, r = N;
  string s;
  vector<int> d(2*N,-1);
  p_N(l,N);
  cin >> s;
  if(s=="-1")return 0;
  int pre = mp[s];
  int mid;
  while(r-l>1){
    mid = (l+r)/2;
    p_N(mid,N);
    cin >> s;
    if(s=="-1")return 0;
    if(pre == mp[s]) l=mid;
    else r = mid;
    pre = mp[s];
  }
  if(mid == l){
    d[l] = pre;
    d[r] = (pre+1)%2
  }else{
    d[l] = (pre+1)%2
    d[r] = pre;
  }

  rep(i,2*N){
    if(i==l || i == r) continue;
    if(r <= i && i < l+N) p(l,N);
    else p_N_1(r,N);
    cout << i+1 <<endl;
    fflush(stdout);
    cin >> s;
    if(s=="-1")return 0;
    d[i] = mp[s];
  }

  cout << "!" SPF;
  rep(i,2*N) cout << m[d[i]];
  cout << endl;
  fflush(stdout);
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:85:21: error: expected ';' before '}' token
   85 |     d[r] = (pre+1)%2
      |                     ^
      |                     ;
   86 |   }else{
      |   ~                  
a.cc:87:21: error: expected ';' before 'd'
   87 |     d[l] = (pre+1)%2
      |                     ^
      |                     ;
   88 |     d[r] = pre;
      |     ~
Language: C++

#include <bits/stdc++.h>
using namespace std::literals::string_literals;
using i64 = std::int_fast64_t;
using std::cout;
using std::cerr;
using std::endl;
using std::cin;

template<typename T>
std::vector<T> make_v(size_t a){return std::vector<T>(a);}

template<typename T,typename... Ts>
auto make_v(size_t a,Ts... ts){
  return std::vector<decltype(make_v<T>(ts...))>(a,make_v<T>(ts...));
}

bool query(std::vector<int> && q) {
	cout << "? ";
	for(auto v: q) cout << v << " ";
	cout << endl;

	std::string t; cin >> t;
	if(t == "-1") std::abort();
	return (t == "Red");
}

std::vector<int> get_segment(int s, int len, int i, int j) {
	std::vector<int> q;
	for(int k = s; k < s + len; k++) {
		if(i != j and k == i) continue;

		q.push_back(k + 1);
	}
	if(i != j) q.push_back(j + 1);
	return q;
}

char c(bool f) {
	return (f ? 'R' : 'B');
}

int main() {
	int n; scanf("%d", &n);

	// 1
	bool now = query(get_segment(0, n, 0, 0));

	// 7
	int L = 1, R = n + 1; // [L, R)
	while(std::abs(L - R)) {
		int mid = (L + R) >> 1;

		auto ret = query(get_segment(mid, n, 0, 0));
		if(now == ret) L = mid;
		else R = mid;
	}

	// 1
	int bound = (query(get_segment(L, n, 0, 0)) != now ? L - 1 : L); count++;
	// [bound, bound + n) != [bound + 1, bound + n + 1)
	// [bound, bound + n) == now

	// 2
	assert(query(get_segment(bound, n, 0, 0)) != query(get_segment(bound + 1, n, 0, 0)));

	std::string ans(2 * n, '?');
	ans[bound]	   = c(now);
	ans[bound + n] = c(!now);
	
	// 198
	for(int i = 0; i < 2 * n; i++) {
		if(i == bound or i == bound + n) continue;
		
		if(bound + 1 <= i and i < bound + n) {
			auto ret = query(get_segment(bound + 1, n, i, bound));

			ans[i] = (now == ret ? c(!now) : c(now));
		} else {
			auto ret = query(get_segment(bound + 1, n, bound + n, i));

			ans[i] = (now == ret ? c(now) : c(!now));
		}
	}

	cout << "! " << ans << endl;
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:59:74: error: 'count' was not declared in this scope; did you mean 'std::count'?
   59 |         int bound = (query(get_segment(L, n, 0, 0)) != now ? L - 1 : L); count++;
      |                                                                          ^~~~~
      |                                                                          std::count
In file included from /usr/include/c++/14/algorithm:86,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51,
                 from a.cc:1:
/usr/include/c++/14/pstl/glue_algorithm_defs.h:101:1: note: 'std::count' declared here
  101 | count(_ExecutionPolicy&& __exec, _ForwardIterator __first, _ForwardIterator __last, const _Tp& __value);
      | ^~~~~
Language: C++

#include "bits/stdc++.h"
using namespace std;
#define REP(i, n) for(ll i = 0;i < n;i++)
#define ll long long
using vi = vector<ll>; // intの1次元の型に vi という別名をつける

ll n;
string s;

int putq(int starti,int flag,int sc){
    cout<<"? ";
    for(int i=0;i<n-flag;i++){
      cout<<((starti+i)%(2*n)+1)<<" ";
    }

    if (flag!=0) cout<<(sc+1)<<" ";
    cout<<endl;
    cin>>s;
    if (s=="Blue"){
      return 1;
    }
    return 2;
}


int main(){
  cin >> n;
  vi a(n*2);

  //2分岐探索
  int end=n;
  int srt=0;
  int mid;
  int srtcol=putq(0);
  int endcol=3-srtcol;
  int midcol=0;
  //2分岐？でSUM i～n-1までのリダクション
  for(int j=0;;j++){
    mid=(srt+end)/2;
    midcol=putq(mid);
    if (srtcol==midcol){
      srt=mid;
    }else{
      end=mid;
    }
    if ((end-srt)==1)break;
  }

  a[(end+n-1)%(2*n)]=endcol;
  a[srt]=3-endcol;

  int idx=end;
  int dindx=idx;
  idx+=n;
  idx%=2*n;
  for(int i=0;i<n-1;i++){
    a[idx]=putq(dindx,1,idx);
    idx++;
    idx%=2*n;
  }

  idx=dindx;
  dindx+=n;
  dindx%=2*n;
  for(int i=0;i<n-1;i++){
    a[idx]=putq(dindx,1,idx);
    idx++;
    idx%=2*n;
  }

  //答え
  cout<<"! ";
  REP(i,n*2){
    if (a[i]==1)cout<<"B";
    if (a[i]==2)cout<<"R";
  }
  cout<<endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:34:18: error: too few arguments to function 'int putq(int, int, int)'
   34 |   int srtcol=putq(0);
      |              ~~~~^~~
a.cc:10:5: note: declared here
   10 | int putq(int starti,int flag,int sc){
      |     ^~~~
a.cc:40:16: error: too few arguments to function 'int putq(int, int, int)'
   40 |     midcol=putq(mid);
      |            ~~~~^~~~~
a.cc:10:5: note: declared here
   10 | int putq(int starti,int flag,int sc){
      |     ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
ll n;
bool ask(vector<ll> v){
  cout<<"? ";
  for(int i=0;i<v.size();i++) cout<<v[i]<<(i==v.size()-1?"\n":" ");
  string s;
  cin>>s;
  return s=="Red";
}
vector<ll> make_seq(ll x){
  vector<ll> ret;
  for(int i=0;i<n;i++) ret.push_back(x+i);
  return ret;
}
int main(){
  cin>>n;
  if(n==1){
    cout<<"? 1"<<endl;
    string s;
    cin>>s;
    if(s=="Red"){
      cout<<"! RB"<<endl;
    }
    else cout<<"! BR"<<endl;
  }
  ll lb=1,rb=n+1;
  bool a1=ask(make_seq(1));
  bool a2=~a1;
  ll ans[205]={0};
  while(rb-lb>1){
    ll mid=(lb+rb)/2;
    bool f1=ask(make_seq(mid));
    bool f2=ask(make_seq(mid+1));
    if(f1!=f2){
      lb=mid;
      if(f1==a1){
        ans[lb]=(a1?1:2);
        ans[lb+n]=(a1?2:1);
      }
      else{
        ans[lb]=(a1?2:1);
        ans[lb+n](a1?1:2);
      }
      break;
    }
    else{
      if(f1==a1) lb=mid;
      else rb=mid;
    }
  }
  //cout<<lb<<endl;

  vector<ll> non_decide,decide;
  for(int i=1;i<=2*n;i++){
    if(i==lb||i==lb+n) continue;
    if(i<lb||i>lb+n) non_decide.push_back(i);
    else decide.push_back(i);
  }


  ll c1=0,c2=0;
  for(int i=0;i<non_decide.size()-1;i++){
    cout<<"? "<<non_decide[i]<<" ";
    for(int j=0;j<n-1;j++) cout<<decide[j]<<(j==n-2?"\n":" ");

    string s;
    cin>>s;
    bool f=(s=="Red");

    if(f){
      ans[non_decide[i]]=1;
      c1++;
    }
    else{
      ans[non_decide[i]]=2;
      c2++;
    }
  }
  int ina=non_decide.size();
  if(c1<c2){
    ans[non_decide[ina-1]]=1;
  }
  else ans[non_decide[ina-1]]=2;

  vector<ll> r,b;
  for(int i=1;i<=2*n;i++){
    if(ans[i]==1) r.push_back(i);
    else if(ans[i]==2) b.push_back(i);
  }
  int d1=0,d2=0;
  int kn=(n-1)/2;
  for(int i=0;i<decide.size()-1;i++){
    cout<<"? "<<decide[i]<<" ";
    for(int j=0;j<kn;j++) cout<<r[j]<<" ";
    for(int j=0;j<kn-1;j++) cout<<b[j]<<" ";
    cout<<b[kn-1]<<endl;

    string s;
    cin>>s;
    if(s=="Red") {
      ans[decide[i]]=1;
      d1++;
    }
    else{
      ans[decide[i]]=2;
      d2++;
    }
  }
  cout<<"! ";
  for(int i=1;i<=2*n;i++){
    if(ans[i]==0){
      if(d1<d2) cout<<"R";
      else cout<<"B";
    }
    else cout<<(ans[i]==1?"R":"B");
  }
  cout<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:45:18: error: expression cannot be used as a function
   45 |         ans[lb+n](a1?1:2);
      |         ~~~~~~~~~^~~~~~~~
Language: C++

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

#define ll long long

ll read(){
    char c= getchar(); ll f = 1, ret = 0;
    for(; !isdigit(c); c = getchar()) if(c == '-') f = -1;
    for(; isdigit(c); c = getchar()) ret = ret*10 + c - '0';
    return ret*f;
}
void write(ll x) {
    if(x < 0) putchar('-'), x = -x;
    if(x > 9) write(x / 10);
    putchar(x%10 + '0');
}
#define nl puts("")
#define bs putchar(' ')
#define FLUSH fflush(stdout)
int qk[233], n;
void putsubsq(int l, int r) {
    for(int j = l; j <= r; j++) {
        write(j), bs;
    }
}
void putwt(int x) {
    printf("? %d ", x);
}
int getcol(char *s){
    if(s[0] == 'R') return 1;
    if(s[0] == '-') return 0;
    return -1;
}
char itoch(int x) {
    if(x == 1) return 'R';
    else return 'B';
}
char s[123];
int col[223];
int lisr[233], lisb[233], cntr, cntb;
signed main(){
    n = read();
    int le, ri;
    for(int i = 1; i <= n+1; i++) {
        putwt(i), putsubsq(i+1, i+n-1), nl, FLUSH;
        scanf("%s", s);
        qk[i] = getcol(s);
        if(I > 1 && qk[i] != qk[i-1]) {
            le = i; ri = i+n-2;
        }
    }
    for(int i = 1; i < le; i++) {
        putwt(i);
        putsubsq(le, ri);
        nl; 
        FLUSH;
        scanf("%s", s);
        col[i] = getcol(s);
    }
    for(int i = ri+1; i <= 2*n; i++){
        putwt(i);
        putsubsq(le, ri);
        nl, FLUSH;
        scanf("%s", s);
        col[i] = getcol(s);
    }
    int xz = (n-1)/2;
    for(int i = 1; i <= n; i++) {
        if(col[i] == 1) {
            if(cntr < xz) {
                lisr[++cntr] = i;
            }
        } else {
            if(cntb < xz) {
                lisb[++cntb] = i;
            }
        }

    }
    for(int i = le; i <= ri; i++) {
        putwt(i);
        for(int j = 1; j <= cntr; j++) write(lisr[j]), bs;
        for(int j = 1; j <= cntb; j++) write(lisb[j]), bs;
        nl, FLUSH;
        scanf("%s", s);
        if(!getcol(s)) return 0;
        col[i] = getcol(s);
    }
    printf("! %c",itoch(col[1]));
    for(int i = 2; i <= 2*n; i++) {
        printf("%c", itoch(col[i]));
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:48:12: error: 'I' was not declared in this scope
   48 |         if(I > 1 && qk[i] != qk[i-1]) {
      |            ^
Language: C++

#define _USE_MATH_DEFINES
#include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <cstdio>
#include <complex>
#include <numeric>
#include <string.h>
#include <random>
#include <cmath>
#define rep(i,n) for (int i = 0; i < (int)n; i++)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> pi;
typedef pair<pi, pi> pp;
typedef pair<ll, ll> pl;
double PI = 3.141592653589793238462643383279;
const double EPS = 1e-9;
const ll MOD = 1000000007;
//const ll MOD = 998244353
const int inf = 1 << 30;
const ll linf = 1LL << 60;

int N;
char ans[300];
char ho, ge;
int er = -1;

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    cin >> N;
    char now;
    int stage = 0, target = 0;
    int cnt = 0;
    int st = 0, en = N;
    cout << "?";
    rep(j,N) {
        cout << " " << j%(2*N)+1;
    }
    now = s[0];
    ho = now;
    for (int i = 0; ; i++) {
        if (stage == 0) {
            int mid = (st+en)/2;
            cout << "?";
            rep(j,N) {
                cout << " " << (mid+j)%(2*N)+1;
            }
            cout << endl;
            string s; cin >> s;
            if (s[0] != now) {
                ge = s[0];
                en = mid;
            } else {
                st = mid;
            }
            if (en-st == 1) {
                stage++;
                target = en;
            }
        } else if (stage == 1) {
            if (cnt < N) {
                cout << "?";
                for (int j = target-N+1; j < target; j++) {
                    cout << " " << j+1;
                }
                cnt++;
                cout << " " << (target+cnt)%(2*N)+1 << endl;
                string s; cin >> s;
                if (s[0] == ho) { ans[(target+cnt)%(2*N)] = ho; er = (target+cnt)%(2*N); }
                else ans[(target+cnt)%(2*N)] = ge;
            } else {
                cout << "?";
                rep(j,N) {
                    if ((target+1+j)%(2*N) == er) continue;
                    cout << " " << (target+1+j)%(2*N)+1;
                }
                cnt++;
                cout << " " << (target+cnt)%(2*N)+1 << endl;
                string s; cin >> s;
                if (s[0] == ho) ans[(target+cnt)%(2*N)] = ho;
                else ans[(target+cnt)%(2*N)] = ge;
            }
            if (cnt == 2*N) break;
        }
    }
    cout << "! ";
    rep(i,2*N) cout << ans[i]; 
    cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:46:11: error: 's' was not declared in this scope; did you mean 'st'?
   46 |     now = s[0];
      |           ^
      |           st
Language: C++

#pragma GCC optimize("Ofast")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace std;
typedef long long ll;
typedef pair<int,int> P;
typedef pair<int,P> P1;
typedef pair<P,P> P2;
#define pu push
#define pb push_back
#define mp make_pair
#define eps 1e-7
#define INF 1000000000
#define mod 1000000007
#define fi first
#define sc second
#define rep(i,x) for(int i=0;i<x;i++)
#define repn(i,x) for(int i=1;i<=x;i++)
#define SORT(x) sort(x.begin(),x.end())
#define ERASE(x) x.erase(unique(x.begin(),x.end()),x.end())
#define POSL(x,v) (lower_bound(x.begin(),x.end(),v)-x.begin())
#define POSU(x,v) (upper_bound(x.begin(),x.end(),v)-x.begin())
int n,col[2005];

string ret(vector<int>vi){
    //	cout << "?";
	//	for(int j=0;j<n;j++) cout << " " << vi[j]);
	//	cout << endl;
	int r = 0;
	rep(i,vi.size()) r += ans[vi[i]-1] == 'R';
	if(r >= (n+1)/2) return "Red"; else return "Blue";
}
int main(){
	cin >> n;
	int lb = 1, ub = n+1;
	string ret1;
	cout << "?";
	for(int j=1;j<=n;j++) cout << " " << j;
	cout << endl;
	cin >> ret1;
	while(ub-lb > 1){
		int mid = (lb+ub)/2;
		cout << "?";
		for(int j=1;j<=n;j++) cout << " " << mid-1+j;
		cout << endl;
		string R; cin >> R;
		if(R != ret1) ub = mid;
		else lb = mid;
	}
	int F;
	if(ret1 == "Red") F = 1; else F = 0;
	{
		col[ub-1] = F;
		col[ub+n-1] = 1-F;
		for(int a=1;a<=2*n;a++){
			if(ub-1 <= a && a <= ub+n-1) continue;
			cout << "?";
			cout << " " << a ;
			for(int x=ub;x<ub+n-1;x++) cout << " " << x ;
			cout << endl;
			string x; cin >> x;
			if(x == "Red") col[a] = 1;
			else col[a] = 0;
		}
	}
	vector<int>vec,vec2;
	for(int i=1;i<=2*n;i++){
		if(ub <= i && i < ub+n-1) continue;
		if(col[i] == 0) vec.pb(i);
		else vec2.pb(i);
	}
	for(int i=ub;i<ub+n-1;i++){
		cout << "?";
		cout << " " << i ;
		for(int x=0;x<(n-1)/2;x++) cout << " " << vec[x] ;
		for(int x=0;x<(n-1)/2;x++) cout << " " << vec2[x] ;
		cout << endl;
		string x; cin >> x;
		if(x == "Red") col[i] = 1;
		else col[i] = 0;
	}
	cout << "! ";
	for(int i=1;i<=2*n;i++){
		if(col[i] == 1) cout << "R";
		else cout << "B";
	}
	cout << endl;
}

Compiler output:
a.cc: In function 'std::string ret(std::vector<int>)':
a.cc:33:31: error: 'ans' was not declared in this scope; did you mean 'abs'?
   33 |         rep(i,vi.size()) r += ans[vi[i]-1] == 'R';
      |                               ^~~
      |                               abs
Language: C++

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll,ll> P;
ll n;
bool ask(vector<ll> v){
  cout<<"? ";
  for(int i=0;i<v.size();i++) cout<<v[i]<<(i==v.size()-1?"\n":" ");
  string s;
  cin>>s;
  return s=="Red";
}
vector<ll> make_seq(ll x){
  vector<ll> ret;
  for(int i=0;i<n;i++) ret.push_back(x+i);
  return ret;
}
int main(){
  cin>>n;
  if(n==1){
    cout<<"? 1"<<endl;
    string s;
    cin>>s;
    if(s=="Red"){
      cout<<"! RB"<<endl;
    }
    else cout<<"! BR"<<endl;
  }
  ll lb=1,rb=n+1;
  bool a1=ask(make_seq(1));
  bool a2=~a1;

  while(rb-lb>1){
    ll mid=(lb+rb)/2;
    bool f1=ask(make_seq(mid));
    bool f2=ask(make_seq(mid+1));
    if(f1!=f2){
      lb=mid;
      break;
    }
    else{
      if(f1==a1) lb=mid;
      else rb=mid;
    }
  }

  vector<ll> non_decide,decide;
  for(int i=1;i<=2*n;i++){
    if(i<=lb||i>=lb+n) non_decide.push_back(i);
    else decide.push_back(i);
  }

  ll ans[200]={0};
  ll c1=0,c2=0;
  for(int i=0;i<non_decide.size()-1;i++){
    cout<<"? "<<non_decide[i]<<" ";
    for(int i=0;i<n-1;i++) cout<<decide[i]<<(i==n-2?"\n":" ");

    string s;
    cin>>s;
    bool f=(s=="Red");

    if(f){
      ans[non_decide[i]]=1;
      c1++;
    }
    else{
      ans[non_decide[i]]=2;
      c2++;
    }
  }
  int ina=non_decide.size();
  if(c1<c2){
    ans[non_decide[ina-1]]=1;
  }
  else ans[non_decide[ina-1]]=2;

  vector<ll> r,b;
  for(int i=1;i<=2*n;i++){
    if(ans[i]==1) r.push_back(i);
    else if(ans[i]==2) b.push_back(i);
  }
  int d1=0,d2=0;
  int kn=(n-1)/2;
  for(int i=0;i<decide.size();i++){
    cout<<"? "<<decide[i]<<" ";
    for(int j=0;j<kn;j++) cout<<r[j]<<" ";
    for(int j=0;j<kn-1;j++) cout<<b[j]<<" ";
    cout<<b[kn-1]<<endl;

    string s;
    cin>>s;
    if(s=="Red") {
      ans[decide[i]]=1;
      d1++;
    }
    else{
      ans[decide[i]]=2;
      d2++;
   }
  }
  cout<<"! ";
  for(int i=1;i<=2*n;i++){
    else cout<<(ans[i]==1?"R":"B");
  }
  cout<<endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:104:5: error: 'else' without a previous 'if'
  104 |     else cout<<(ans[i]==1?"R":"B");
      |     ^~~~
Language: C++

// template version 1.13
using namespace std;
#include <bits/stdc++.h>

// varibable settings
#define infile "../test/sample-1.in"
#define int long long //{{{
const int INF=1e18;
const int MOD=1e9+7; //}}}

// define basic macro {{{
#define _overload3(_1,_2,_3,name,...) name
#define _rep(i,n) repi(i,0,n)
#define repi(i,a,b) for(int i=(int)(a);i<(int)(b);++i)
#define rep(...) _overload3(__VA_ARGS__,repi,_rep,)(__VA_ARGS__)
#define _rrep(i,n) rrepi(i,0,n)
#define rrepi(i,a,b) for(int i=(int)((b)-1);i>=(int)(a);--i)
#define rrep(...) _overload3(__VA_ARGS__,rrepi,_rrep,)(__VA_ARGS__)
#define each(i,a) for (auto&& i : a)
#define all(x) (x).begin(),(x).end()
#define sz(x) ((int)(x).size())
#define pb(a) push_back(a)
#define mp(a, b) make_pair(a, b)
#define mt(a, b, c) make_tuple(a, b, c)
#define ceil(a,b) ((a)+(b)-1)/(b)
#define is_in(x, a, b) ((a)<=(x) && (x)<(b))
#define uni(x) sort(all(x));x.erase(unique(all(x)),x.end())
#define ub upper_bound
#define lb lower_bound
#define posl(A, x) (lower_bound(all(A), x)-A.begin())
#define posu(A, x) (upper_bound(all(A),x)-A.begin())
template<class T> inline void chmax(T &a, const T &b) { if((a) < (b)) (a) = (b); }
template<class T> inline void chmin(T &a, const T &b) { if((a) > (b)) (a) = (b); }

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef long double ld;
typedef pair<int,int> pii;
typedef tuple<int,int,int> iii;

template<typename T> using PQ = priority_queue<T, vector<T>, greater<T>>;
// struct Fast { Fast(){ std::cin.tie(0); ios::sync_with_stdio(false); } } fast;

#if defined(PCM) || defined(LOCAL)
  #include "lib/dump.hpp"
#else
  #define dump(...) 42
  #define dump_1d(...) 42
  #define dump_2d(...) 42
#endif
//}}}

int solve(){
  int n;cin>>n;

  vi z;
  int prea = 0;
  int x;
  while (j, n+1){
    x = j;
    vi q(n);
    rep(i, 1, n+1) q[i]=i+j;
    rep(i, sz(q)) cout << q[i] << (i!=sz(q)-1 ? " " : "\n");
    string ans;cin>>ans;
    int a;
    if (ans=="Red") a=1;
    if (ans=="Blue") a=0;
    if (prea*a==-1) break;
    prea = a;
  }

  // [x,x+n-2]は
  vi ans(2*n);
  rep(i, 2*n){
    vi q(n);
    rep(j, 0, n-1) q[i]=j+x;
    q[n-1] = i;
    rep(i, sz(q)) cout << q[i] << (i!=sz(q)-1 ? " " : "\n");
    string s;cin>>s;
  }

  return 0;
}

signed main() { //{{{
#ifdef INPUT_FROM_FILE
  std::ifstream in(infile);
  std::cin.rdbuf(in.rdbuf());
#endif
  solve();
  return 0;
} //}}}


Compiler output:
a.cc: In function 'long long int solve()':
a.cc:60:10: error: 'j' was not declared in this scope
   60 |   while (j, n+1){
      |          ^
Language: C++

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


signed main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout << fixed << setprecision(20);
    
    int n;
    cin>>n;
    int a[2*n]={};
    int b=1,r=2;
    // 1:Blue,2:Red
    string s="";
    for(int i=0;i<2*n;i++){
        cout << "? ";
        for(int j=0;j<n;j++){
            if(j) cout << " ";
            cout << (i+j)%(2*n)+1Red
             << " ";
        }
        cout << endl;
        string t;
        cin>>t;
        if(t=="Red") s += "R";
        else s += "B";
    }
    int cb=0,cr=0;
    for(int i=0;i+1<s.size();i++){
        if(s[i]=='R' && s[i+1]=='B'){
            a[i]=2;
            a[(i+n)%(2*n)]=1;
            cr++,cb++;
        }
        if(s[i]=='B' && s[i+1]=='R'){
            a[i]=1;
            a[(i+n)%(2*n)]=2;
            cr++,cb++;
        }
    }
    
    for(int c=0;c<2*n;c++){
        for(int i=0;i<s.size();i++){
            int ur=0,ub=0;
            for(int j=0;j<n;j++){
                if(a[(i+j)%(2*n)]==b) ub++;
                if(a[(i+j)%(2*n)]==r) ur++;
            }
            if(ub==1 && ur==1){
                for(int j=0;j<n;j++){
                    if(a[(i+j)%(2*n)]==0 && s[i]=='R') a[(i+j)%(2*n)]=r,cr++;
                    if(a[(i+j)%(2*n)]==0 && s[i]=='B') a[(i+j)%(2*n)]=b,cb++;
                }
            }
        }
    }
    if(cr==n){
        for(int i=0;i<2*n;i++){
            if(a[i]==0) a[i]=b;
        }
    }
    if(cb==n){
        for(int i=0;i<n*2;i++){
            if(a[i]==0) a[i]=r;
        }
    }
    cout << "! ";
    for(int i=0;i<2*n;i++){
        if(i)cout << " ";
        cout << a[i];
    }
    cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:21:33: error: unable to find numeric literal operator 'operator""Red'
   21 |             cout << (i+j)%(2*n)+1Red
      |                                 ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pie 3.141592653589793238462643383279
#define mod 1000000007
#define INF LLONG_MAX/5
#define all(v) v.begin(),v.end()
#define P pair<int,int>
#define S second
#define F first
#define f(i,n) for(int i=0;i<n;i++)
int mypow(int a,int b,int c){
	if(b==0)return 1;
	if(b%2)return mypow(a,b-1,c)*a%c;
	int z=mypow(a,b/2,c);
	return z*z%c;
}
int x[200];
vector<int> v;
signed main(){
	int n,zz;
	string z;
	cin>>n;
	f(i,n+1){
		cout<<'?';
		for(int j=i;j<i+n;j++){
			cout<<" "<<j+1;
		}
		cout<<flush;
		string s;
		cin>>s;
		if(s=="-1")return 0;
		if(i&&z[0]!=s[0]){
			if(z[0]=='B'){
				x[i-1]=2;
				x[i+n-1]=1;
			}
			else{
				x[i-1]=1;
				x[i+n-1]=2;
			}
			zz=i;
			break;
		}
		else z=s;
	}
	f(i,n*2){
		if(i>=zz-1&&i<zz+n)continue;
		cout<<"? "<<i+1;
		for(int j=zz;j<zz+n-1;j++){
			cout<<" "<<j+1;
		}
		cout<<flush;
		string s;
		cin>>s;
		if(s=="-1")return 0;
		if(s[0]=='B')x[i]=2;
		else x[i]=1;
	}
	int b=0,r=0;
	f(i,n*2){
		if(x[i]==1&&r<n/2){
			v.push_back(i);
			r++;
		}
		else if(x[i]==2&&b<n/2){
			v.push_back(i);
			b++;
		}
		if(r==n/2&&b==n/2)break;
	}
	for(int i=zz;i<zz+n-1;i++){
		cout<<"? "<<i+1;
		f(j,v.size()){
			cout<<" "<<v[j]+1;
		}
		cout<<flush;
		string s;
		cin>>s;
		if(s=="-1")return 0;
		if(s[0]=='B')x[i]=2;
		else x[i]=1;
	}
	cout<<"! ";
	f(i,n*2){
		if(x[i]==1)cout<<"R";
		else cout<<"B";
	}
	cout<<flush
	return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:89:20: error: expected ';' before 'return'
   89 |         cout<<flush
      |                    ^
      |                    ;
   90 |         return 0;
      |         ~~~~~~
Language: C++

#include <bits/stdc++.h>
#define r(i,n) for(int i=0;i<n;i++)
using namespace std;
typedef pair<int,int>P;
#define F first
#define S second

unsigned long long xor128() {
    static unsigned long long rx = 123456789, ry = 362436069, rz = 521288629, rw = 88675123;
    unsigned long long rt = (rx ^ (rx << 11));
    rx = ry;
    ry = rz;
    rz = rw;
    return (rw = (rw ^ (rw >> 19)) ^ (rt ^ (rt >> 8)));
}

vector<int>A[210];

main(){
	int n;
	cin>>n;
	vector<int>v;
	r(i,n*2)v.push_back(i);
	r(i,210){
		cout<<'?';
		r(j,n*2)swap(v[j],v[xor128()%(n*2)]);
		r(j,n){
			cout<<' ';
			cout<<v[j]+1;
		}
		cout<<endl;
		string s;
		cin>>s;
		if(s=="Red"){
			r(j,n)A[i].push_back(v[j]);
		}
		else{
			r(j,n)A[i].push_back(v[j+n]);
		}
	}
	vector<int>a(n*2,0);
	r(i,n){
		a[i]=1;
	}
	int cur=0;
	r(i,10000){
		//cout<<i<<endl;
		int l=xor128()%(n*2);
		int r=xor128()%(n*2);
		if(a[l]==a[r]){
			i--;
			continue;
		}
		vector<int>nex=a;
		//cout<<l<<' '<<r<<endl;
		swap(nex[l],nex[r]);
		//cout<<l<<' '<<r<<endl;
		int sco=0;
		r(j,210){
			int x=0;
			r(k,n){
				if(nex[A[j][k]] == 1)x++;
			}
			if(x>n/2)sco++;
		}
		//cout<<l<<' '<<r<<endl;
		if(cur<sco){
			cur=sco;
			a=nex;
		}
	}

	if(sco!=210)return 1;

	string s="";
	r(i,n*2){
		if(a[i]==1)s+='R';
		else s+='B';
	}
	cout<<'!'<<' '<<s<<endl;
	return 0;
}


Compiler output:
a.cc:19:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   19 | main(){
      | ^~~~
a.cc: In function 'int main()':
a.cc:73:12: error: 'sco' was not declared in this scope
   73 |         if(sco!=210)return 1;
      |            ^~~
Language: C++

from math import gcd
MOD = 1000000007
def pw(x, y):
    ans = 1
    while y > 0:
        if y % 2:
            ans = ans * x % MOD
        x = x * x % MOD
        y //= 2
    return ans
H, W, T = map(int, input().split())
HT = gcd(H, T)
WT = gcd(W, T)
H //= HT
W //= WT
print(pw(pw(2, H) + pw(2, W) + pw(2, gcd(H, W)) - 3, HT * WT))

Compiler output:
a.cc:1:1: error: 'from' does not name a type
    1 | from math import gcd
      | ^~~~
Language: Java

//#pragma GCC optimize("O3")
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const ll mod = 1000000007;

int gcd (int x, int y) {
    if (x < y) {
        return gcd(y, x);
    }
    if (y > 0) {
        return gcd(y, x % y);
    }
    return x;
}

ll todeg (ll x, ll deg) {
    if (deg < 0) {
        deg += (mod - 1);
    }
    if (deg == 0) {
        return 1;
    }
    ll ans = todeg(x, deg / 2);
    ans *= ans;
    ans %= mod;
    if (deg % 2 == 1) {
        ans *= x;
    }
    ans %= mod;
    return ans;
}

int main()
{
    /*ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);*/

    ll h, w, t;
    cin >> h >> w >> t;
    ll h1 = h / gcd(h, t);
    ll w1 = w / gcd(w, t);
    ll smolspos = (todeg(2, h1) + todeg(2, w1) + mod - 1) % mod;
    if (h1 % w1 == 0 || w1 % h1 == 0) {
        smolspos += 2;
    }
    cout << todeg(smolspos, (h / h1 * w / w1) % mod) << '\n';
    return 0;
}


Compiler output:
Main.java:2: error: illegal character: '#'
#include <bits/stdc++.h>
^
Main.java:2: error: class, interface, enum, or record expected
#include <bits/stdc++.h>
         ^
Main.java:6: error: class, interface, enum, or record expected
typedef long long ll;
^
Main.java:8: error: class, interface, enum, or record expected
const ll mod = 1000000007;
^
Main.java:10: error: unnamed classes are a preview feature and are disabled by default.
int gcd (int x, int y) {
^
  (use --enable-preview to enable unnamed classes)
Main.java:44: error: not a statement
    cin >> h >> w >> t;
                  ^
Main.java:51: error: not a statement
    cout << todeg(smolspos, (h / h1 * w / w1) % mod) << '\n';
                                                     ^
7 errors
Language: C++

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

typedef long long int ll;
#define rep(i,n) for (int i = 0; i < (n); i++)
#define all(v) (v).begin(), (v).end()
#define sz(x) int(x.size())
const ll mod = 1000000007;
const ll INF = 1001001001001001000;

int main() {
    int r; cin >> r;
    cout << r*r << endl;
    return 0;
}


Compiler output:
a.cc:3:10: fatal error: atcoder/dsu: No such file or directory
    3 | #include <atcoder/dsu>
      |          ^~~~~~~~~~~~~
compilation terminated.
Language: C++

#include <iostream>
using namespace std;

int main() {
    int r;
    cin >> r;
    cout << r * r << endl;
    return 0;
}
しかし、プ

Compiler output:
a.cc:10:1: error: extended character 、 is not valid in an identifier
   10 | しかし、プ
      | ^
a.cc:10:1: error: '\U00003057\U0000304b\U00003057\U00003001\U000030d7' does not name a type
   10 | しかし、プ
      | ^~~~~~~~~~
Language: C++

using namespace std;

int main() {
    int r;
    cin >> r;
    cout << r * r << endl;
    return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:5:5: error: 'cin' was not declared in this scope
    5 |     cin >> r;
      |     ^~~
a.cc:1:1: note: 'std::cin' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
  +++ |+#include <iostream>
    1 | using namespace std;
a.cc:6:5: error: 'cout' was not declared in this scope
    6 |     cout << r * r << endl;
      |     ^~~~
a.cc:6:5: note: 'std::cout' is defined in header '<iostream>'; this is probably fixable by adding '#include <iostream>'
a.cc:6:22: error: 'endl' was not declared in this scope
    6 |     cout << r * r << endl;
      |                      ^~~~
a.cc:1:1: note: 'std::endl' is defined in header '<ostream>'; this is probably fixable by adding '#include <ostream>'
  +++ |+#include <ostream>
    1 | using namespace std;
Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll=long long;
int main() {
  ll a;
  cin>>a;
  cout<<a*a<<endl
}
     


Compiler output:
a.cc: In function 'int main()':
a.cc:7:18: error: expected ';' before '}' token
    7 |   cout<<a*a<<endl
      |                  ^
      |                  ;
    8 | }
      | ~
Language: C++

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

Compiler output:
a.cc: In function 'int main()':
a.cc:5:3: error: 'll' was not declared in this scope
    5 |   ll a;
      |   ^~
a.cc:6:8: error: 'a' was not declared in this scope
    6 |   cin>>a;
      |        ^
Language: C

#include<stdio.h>

int main(void) {
	int r;
	float cir, cir_;


	scanf_s("%d", &r);

	printf("%d", r*r);

	return 0;


}

Compiler output:
main.c: In function 'main':
main.c:8:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    8 |         scanf_s("%d", &r);
      |         ^~~~~~~
      |         scanf
Language: C

#include<stdio.h>
int main(void) {
	int r;
	float cir, cir_;


	scanf_s("%d", &r);

	cir = r * r * 3.14;
	cir_ = 3.14;

	int  res = cir / cir_;

	printf("%d", res);

	return 0;


}

Compiler output:
main.c: In function 'main':
main.c:7:9: error: implicit declaration of function 'scanf_s'; did you mean 'scanf'? [-Wimplicit-function-declaration]
    7 |         scanf_s("%d", &r);
      |         ^~~~~~~
      |         scanf
Language: Java

#include <iostream>
using namespace std;

int main() {
    int r;
    cin >> r;
    cout << r * r << endl;
    return 0;
}

Compiler output:
Main.java:1: error: illegal character: '#'
#include <iostream>
^
Main.java:1: error: class, interface, enum, or record expected
#include <iostream>
         ^
Main.java:6: error: not a statement
    cin >> r;
        ^
Main.java:7: error: not a statement
    cout << r * r << endl;
                  ^
Main.java:4: error: unnamed classes are a preview feature and are disabled by default.
int main() {
^
  (use --enable-preview to enable unnamed classes)
5 errors
Language: C

#include<bits/stdc++.h>
using namespace std;
int main()
{
  int n;
  cin>>n;
  int k =n*n;
  cout<<k<<endl;
}

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

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

int main(){
  int n;
  cin >> n;
  cout　<< n*n << endl;
}


Compiler output:
a.cc:7:3: error: extended character 　 is not valid in an identifier
    7 |   cout　<< n*n << endl;
      |   ^
a.cc: In function 'int main()':
a.cc:7:3: error: 'cout\U00003000' was not declared in this scope
    7 |   cout　<< n*n << endl;
      |   ^~~~~~
Language: C

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

int main(){
  int n;
  cin >> n;
  cout　<< n*n << endl;
}

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

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long int
#define ld long double
#define vector deque
#define fin(s) freopen( s, "r", stdin );
#define fout(s) freopen( s, "w", stdout );
using namespace std;
using namespace __gnu_pbds;
typedef tree<ll,null_type , less<ll>,rb_tree_tag,tree_order_statistics_node_update> set_2i;
typedef tree<ld,null_type , less<ld>,rb_tree_tag,tree_order_statistics_node_update> set_2d;
typedef tree<string,null_type , less<string>,rb_tree_tag,tree_order_statistics_node_update> set_2s;
void Oli(){
    ll a;
    cin>>a;
    cout<< ll((3.14*(a*a))/3.14);
}
int main()
{
    int times  = 1;
    //cin>>times;
    while( times--) Oli();
    //BY ME
}

Compiler output:
a.cc: In function 'void Oli()':
a.cc:3:12: error: expected primary-expression before 'long'
    3 | #define ll long long int
      |            ^~~~
a.cc:16:12: note: in expansion of macro 'll'
   16 |     cout<< ll((3.14*(a*a))/3.14);
      |            ^~
Language: C

#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <iomanip>

using namespace std;
using ll = long long;

int main() {
    int r;
    cin >> r;
    cout << r * r << 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>
#include <ext/pb_ds/assoc_container.hpp>
#define ll long long int
#define ld long double
#define vector deque
#define fin(s) freopen( s, "r", stdin );
#define fout(s) freopen( s, "w", stdout );
using namespace std;
using namespace __gnu_pbds;
typedef tree<ll,null_type , less<ll>,rb_tree_tag,tree_order_statistics_node_update> set_2i;
typedef tree<ld,null_type , less<ld>,rb_tree_tag,tree_order_statistics_node_update> set_2d;
typedef tree<string,null_type , less<string>,rb_tree_tag,tree_order_statistics_node_update> set_2s;
void Oli(){
    int a;
    cin>>a;
    cout<< int((3.14*(a*a))/3.14)
}
int main()
{
    int times  = 1;
    //cin>>times;
    while( times--) Oli();
    //BY ME
}

Compiler output:
a.cc: In function 'void Oli()':
a.cc:16:34: error: expected ';' before '}' token
   16 |     cout<< int((3.14*(a*a))/3.14)
      |                                  ^
      |                                  ;
   17 | }
      | ~
Language: C++

#include <iostream>
using namespase std;

int main(void) {
  int r;
  cin >> r;
  cout << r*r << endl;
  return 0;
}

Compiler output:
a.cc:2:7: error: expected nested-name-specifier before 'namespase'
    2 | using namespase std;
      |       ^~~~~~~~~
a.cc: In function 'int main()':
a.cc:6:3: error: 'cin' was not declared in this scope; did you mean 'std::cin'?
    6 |   cin >> r;
      |   ^~~
      |   std::cin
In file included from a.cc:1:
/usr/include/c++/14/iostream:62:18: note: 'std::cin' declared here
   62 |   extern istream cin;           ///< Linked to standard input
      |                  ^~~
a.cc:7:3: error: 'cout' was not declared in this scope; did you mean 'std::cout'?
    7 |   cout << r*r << endl;
      |   ^~~~
      |   std::cout
/usr/include/c++/14/iostream:63:18: note: 'std::cout' declared here
   63 |   extern ostream cout;          ///< Linked to standard output
      |                  ^~~~
a.cc:7:18: error: 'endl' was not declared in this scope; did you mean 'std::endl'?
    7 |   cout << r*r << endl;
      |                  ^~~~
      |                  std::endl
In file included from /usr/include/c++/14/iostream:41:
/usr/include/c++/14/ostream:744:5: note: 'std::endl' declared here
  744 |     endl(basic_ostream<_CharT, _Traits>& __os)
      |     ^~~~
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
 　cin >>r;
  int ans = r*r/1;
  cout <<ans<<endl;
}

Compiler output:
a.cc:5:2: error: extended character 　 is not valid in an identifier
    5 |  　cin >>r;
      |  ^
a.cc: In function 'int main()':
a.cc:5:2: error: '\U00003000cin' was not declared in this scope
    5 |  　cin >>r;
      |  ^~~~~
a.cc:5:10: error: 'r' was not declared in this scope
    5 |  　cin >>r;
      |          ^
Language: Java

class Main{
  public static void main(String[] args){
    

Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
 System.out.println(a*a);   
  }
}

Compiler output:
Main.java:5: error: cannot find symbol
Scanner sc = new Scanner(System.in);
^
  symbol:   class Scanner
  location: class Main
Main.java:5: error: cannot find symbol
Scanner sc = new Scanner(System.in);
                 ^
  symbol:   class Scanner
  location: class Main
2 errors
Language: Java

class Circle {
 
  public static void main(String[] args)
    int r;
  int ratio = r * r;
  Systam.out.println(ratio);
  
}

Compiler output:
Main.java:3: error: ';' expected
  public static void main(String[] args)
                                        ^
Main.java:6: error: <identifier> expected
  Systam.out.println(ratio);
                    ^
Main.java:6: error: <identifier> expected
  Systam.out.println(ratio);
                          ^
3 errors
Language: C

#include <stdio.h>



int main()
{
  int r,c;
  1<=r<=100;  
  scanf("%d",&r);
 Pi = 3.1416 ;
   
  c =(Pi*(r*r))/(Pi*(1*1));
  printf("%d\n",c);
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:10:2: error: 'Pi' undeclared (first use in this function)
   10 |  Pi = 3.1416 ;
      |  ^~
main.c:10:2: note: each undeclared identifier is reported only once for each function it appears in
Language: C

#include<studio.h> 
int main() 
{ 
 int r,c,a1,a2; 
scanf("%d",&r); 
a1=3.1416*(r*r); 
a2=3.1416*(1*1); 
c=a1/a2; 
printf("%d\n",c); 
return 0; 
}

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

#include <iostream>
using namespace std;

int main() {
  int r;
  cin >> r;
  cout << r^2 << endl;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:15: error: invalid operands of types 'int' and '<unresolved overloaded function type>' to binary 'operator<<'
    7 |   cout << r^2 << endl;
      |             ~~^~~~~~~
Language: C

#include<stdio.h>
int main(void)
{
  int r,h;
  scanf("%d",&r);
  h=r*r;
 printf(%d\n,h)
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:7:9: error: expected expression before '%' token
    7 |  printf(%d\n,h)
      |         ^
main.c:7:11: error: stray '\' in program
    7 |  printf(%d\n,h)
      |           ^
main.c:7:16: error: expected ';' before 'return'
    7 |  printf(%d\n,h)
      |                ^
      |                ;
    8 | return 0;
      | ~~~~~~
Language: C++

#include <iostream>
using namespace std;
 
int main(){
  int n;
  cin>>n;
  int c = pow(n, 2.0);
  cout<<c<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:11: error: 'pow' was not declared in this scope
    7 |   int c = pow(n, 2.0);
      |           ^~~
Language: C++

#include <iostream>
using namespace std;
 
int main(){
  int n;
  cin>>n;
  cout<<n ** 2<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:12: error: invalid type argument of unary '*' (have 'int')
    7 |   cout<<n ** 2<<endl;
      |            ^~~
Language: C++

#include <iostream>
using namespace std;

int main(){
  int n;
  cin>>n;
  cout<<c ** 2<<endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:9: error: 'c' was not declared in this scope
    7 |   cout<<c ** 2<<endl;
      |         ^
a.cc:7:12: error: invalid type argument of unary '*' (have 'int')
    7 |   cout<<c ** 2<<endl;
      |            ^~~
Language: C++

#include <iostream>
using namespace std;
 
int n;
cin>>n;
cout<<n ** 2<<endl;

Compiler output:
a.cc:5:1: error: 'cin' does not name a type
    5 | cin>>n;
      | ^~~
a.cc:6:1: error: 'cout' does not name a type
    6 | cout<<n ** 2<<endl;
      | ^~~~
Language: C++

#<iostream>
using namespace std;

int n;
cin>>n;
cout<<n ** 2<<endl;

Compiler output:
a.cc:1:2: error: invalid preprocessing directive #<
    1 | #<iostream>
      |  ^
a.cc:5:1: error: 'cin' does not name a type
    5 | cin>>n;
      | ^~~
a.cc:6:1: error: 'cout' does not name a type
    6 | cout<<n ** 2<<endl;
      | ^~~~
Language: C++

#include <bits/stdc++.h>

using namespace std;
	ios::sync_with_stdio(0);
	cin.tie(0);
	int n;
	cin >> n;
	cout << n*2;
	return 0;
}


Compiler output:
a.cc:4:9: error: specializing member 'std::basic_ios<char>::sync_with_stdio' requires 'template<>' syntax
    4 |         ios::sync_with_stdio(0);
      |         ^~~
a.cc:5:9: error: 'cin' does not name a type
    5 |         cin.tie(0);
      |         ^~~
a.cc:7:9: error: 'cin' does not name a type
    7 |         cin >> n;
      |         ^~~
a.cc:8:9: error: 'cout' does not name a type
    8 |         cout << n*2;
      |         ^~~~
a.cc:9:9: error: expected unqualified-id before 'return'
    9 |         return 0;
      |         ^~~~~~
a.cc:10:1: error: expected declaration before '}' token
   10 | }
      | ^
Language: C++

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

int main ()
{
	int t;  cin>>t;
	
	cout<<(t*t)<<endl;2


}



Compiler output:
a.cc: In function 'int main()':
a.cc:8:28: error: expected ';' before '}' token
    8 |         cout<<(t*t)<<endl;2
      |                            ^
      |                            ;
......
   11 | }
      | ~
Language: C

//Bismillahir Rahmanir Rahim
#include<iostream>
using namespace std;
int main()
{
  int n;
  cin>>n;
  cout<<n*n<<endl;
}

Compiler output:
main.c:2:9: fatal error: iostream: No such file or directory
    2 | #include<iostream>
      |         ^~~~~~~~~~
compilation terminated.
Language: C

#include<stdio.h>

int main(void){
  int in,out;
  scanf

Compiler output:
main.c: In function 'main':
main.c:5:8: error: expected ';' at end of input
    5 |   scanf
      |        ^
      |        ;
main.c:5:3: error: expected declaration or statement at end of input
    5 |   scanf
      |   ^~~~~
Language: C++

#include <iostream>
using namespace std;

int main() {
  int r;
  cin >> r;
  cout << r * r << end1;
  return 0;
}
                                            

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: 'end1' was not declared in this scope
    7 |   cout << r * r << end1;
      |                    ^~~~
Language: C++

#include <iostream>
using namespace std;

int main(){
  int r;
  cin >> r;
  cout << r * r << end1;
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:20: error: 'end1' was not declared in this scope
    7 |   cout << r * r << end1;
      |                    ^~~~
Language: C

#include<stdio.h>
 
int main(void)
{
  int r ;
  
  scanf("%d",&r);
  
  printf("%d"\n,r^2);
}

Compiler output:
main.c: In function 'main':
main.c:9:14: error: stray '\' in program
    9 |   printf("%d"\n,r^2);
      |              ^
main.c:9:14: error: expected ')' before 'n'
    9 |   printf("%d"\n,r^2);
      |         ~    ^~
      |              )
Language: C

include <stdio.h>

int main(void)
{
  int r ;
  
  scanf("%d",&r);
  
  printf("%d",r^2);
}

Compiler output:
main.c:1:9: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token
    1 | include <stdio.h>
      |         ^
Language: C

#include <stdio.h>

 into main(void)
｛
　　int r;
  printf("%d*%d,r");
    return 0;
 ｝

Compiler output:
main.c:3:2: error: unknown type name 'into'; did you mean 'int'?
    3 |  into main(void)
      |  ^~~~
      |  int
main.c: In function 'main':
main.c:5:1: error: stray '\343' in program
    5 | <U+3000><U+3000>int r;
      | ^~~~~~~~
main.c:5:3: error: stray '\343' in program
    5 | <U+3000><U+3000>int r;
      |         ^~~~~~~~
main.c:4:1: error: expected declaration specifiers before '\U0000ff5b'
    4 | ｛
      | ^~
main.c:6:3: error: expected declaration specifiers before 'printf'
    6 |   printf("%d*%d,r");
      |   ^~~~~~
main.c:7:5: error: expected declaration specifiers before 'return'
    7 |     return 0;
      |     ^~~~~~
main.c:8:2: error: expected declaration specifiers before '\U0000ff5d'
    8 |  ｝
      |  ^~