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


import java.util.Arrays;
import java.util.Scanner;
 class Player implements Comparable<Player>{
	int num;
	double time;
	public Player(int num,double time){
		this.num=num;
		this.time=time;
	}
	@Override
	public String toString(){
		return num+" "+time;
	}
	@Override
	public int compareTo(Player p){
		return new Double(time).compareTo(p.time);
	}	
}

public class Main{
	static void doit(){
		Scanner scan = new Scanner(System.in);
		Player player[]=new Player[24];
		Player[] f_player=new Player[8];
		Player[] memo=new Player[6];
		for(int i=0;i<24;i++){
			player[i]=new Player(scan.nextInt(),scan.nextDouble());
		}
		//System.out.println(Arrays.toString(player));
		Arrays.sort(player,0,7);
		Arrays.sort(player,8,15);
		Arrays.sort(player,16,23);
		int k=0;
		for(int i=0;i<24;i+=8){
			f_player[k]=player[i];
			f_player[k+1]=player[i+1];
			k+=2;
		}
		int cnt=0;
		for(int i=2;i<=18;i+=8){
			memo[cnt]=player[i];
			memo[cnt+1]=player[i+1];
			cnt+=2;
		}
		Arrays.sort(memo);
		f_player[6]=memo[0];
		f_player[7]=memo[1];
		//System.out.println(Arrays.toString(memo));
		//System.out.println(Arrays.toString(f_player));
		for(int i=0;i<8;i++){
			System.out.printf("%d %.2f\n", f_player[i].num,f_player[i].time);
		}
	}
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		new Main().doit();
	}

}

Compiler output:
a.cc:11:9: error: stray '@' in program
   11 |         @Override
      |         ^
a.cc:15:9: error: stray '@' in program
   15 |         @Override
      |         ^
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.Arrays;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:3:1: error: 'import' does not name a type
    3 | import java.util.Scanner;
      | ^~~~~~
a.cc:3:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:4:26: error: expected initializer before 'Comparable'
    4 |  class Player implements Comparable<Player>{
      |                          ^~~~~~~~~~
a.cc:21:1: error: expected unqualified-id before 'public'
   21 | public class Main{
      | ^~~~~~
Language: C++

#include <iostream>
#include <functional>
#include <vector>
#include <cstdio>

using namespace std;

class Player{
public:
	int number;
	double time;
	
	Player(){
		number = 0;
		time = 0;
	}
	
	bool operator<( const Player& lhs ) const{
		return time < lhs.time;
	}
	bool operator>( const Player& lhs ) const{
		return time > lhs.time;
	}
};

int main(int argc, char const* argv[])
{
	vector<Player> race1( 8 );
	vector<Player> race2( 8 );
	vector<Player> race3( 8 );
	vector<Player> race( 18 );

	for( int i = 0;i < 8;i++ ){
		cin >> race1[i].number;
		cin >> race1[i].time;
	}
	for( int i = 0;i < 8;i++ ){
		cin >> race2[i].number;
		cin >> race2[i].time;
	}
	for( int i = 0;i < 8;i++ ){
		cin >> race3[i].number;
		cin >> race3[i].time;
	}

	sort( race1.begin(), race1.end(), greater<Player>() );

	printf("%d %.2f\n",race1[7].number, race1[7].time );
	printf("%d %.2f\n",race1[6].number, race1[6].time );
	race1.pop_back();
	race1.pop_back();

	sort( race2.begin(), race2.end() , greater<Player>());

	printf("%d %.2f\n",race2[7].number, race2[7].time );
	printf("%d %.2f\n",race2[6].number, race2[6].time );

	race2.pop_back();
	race2.pop_back();
	sort( race3.begin(), race3.end(), greater<Player>() );

	printf("%d %.2f\n",race3[7].number, race3[7].time );
	printf("%d %.2f\n",race3[6].number, race3[6].time );
	race3.pop_back();
	race3.pop_back();

	for( int i = 0;i < 6;i++ ){
		race[i] = race1[i];
		race[i + 6] = race2[i];
		race[i + 12] = race3[i];
	}

	sort( race.begin(), race.end(), greater<Player>() );

	
	printf("%d %.2f\n",race[17].number, race[17].time );
	printf("%d %.2f\n",race[16].number, race[16].time );
	return 0;
}

Compiler output:
a.cc: In function 'int main(int, const char**)':
a.cc:46:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   46 |         sort( race1.begin(), race1.end(), greater<Player>() );
      |         ^~~~
      |         short
Language: C++

#include <iostream>
#include <map>
#include <vector>
using namespace std;
int main(){
	map<double, int> n_t;
	int race = 3;
	int num;
	double t;
	vector<double> rank, all;
	while( race-- > 0 ){
		for( int i = 0; i < 8; i++ ){
			cin >> num >> t;
			n_t[t] = num;
			rank.push_back(t);
		}
		sort(rank.begin(), rank.end());
		vector<double>::iterator it = rank.begin();
		cout << n_t[*it] << ' ' << *it << endl;
		//rank.erace(it);
		it++;
		cout << n_t[*it] << ' ' << *it << endl;
		it++;
		for( ; it != rank.end(); it++ ){
			all.push_back(*it);
		}
		rank.clear();
	}
	sort(all.begin(), all.end());
	vector<double>::iterator it = all.begin();
	cout << n_t[*it] << ' ' << *it << endl;
	it++;
	cout << n_t[*it] << ' ' << *it << endl;

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:17:17: error: 'sort' was not declared in this scope; did you mean 'short'?
   17 |                 sort(rank.begin(), rank.end());
      |                 ^~~~
      |                 short
a.cc:29:9: error: 'sort' was not declared in this scope; did you mean 'short'?
   29 |         sort(all.begin(), all.end());
      |         ^~~~
      |         short
Language: Java

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        while (n-- > 0) {
            String snake = sc.next();
            if (snake.indexOf('#') > 0 && snake.charAt(0) == '>' && snake.charAt(1) == '\'' && snake.charAt(snake.length() - 1) == '~') {
                String[] l = snake.split("[>'#~]");
                if ( l[2].length() == l[3].length() && l[2].length() + l[3].length() + 4 == snake.length()) {
                    System.out.println("A");
                }else {
                    System.out.println("NA");
                }
            } else if (snake.charAt(0) == '>' && snake.charAt(1) == '^' && snake.charAt(snake.length() - 2) == '~' && snake.charAt(snake.length() - 1) == '~'&&snake.replaceAll("Q=","").equals(">^~~")) {
                    System.out.println("B");
            }else {
                System.out.println("NA");
            }
        }
    }
}


Compiler output:
Main.java:1: error: unnamed classes are a preview feature and are disabled by default.
    public static void main(String[] args) {
                  ^
  (use --enable-preview to enable unnamed classes)
Main.java:20: error: class, interface, enum, or record expected
}
^
2 errors
Language: C

#include<stdio.h>

int main(void){
  char w[201];
  int a,i,j,k;
  a=getchar();
  for(j=0;j<a;j++){
    gets(w);
    if(w[0]!='>'){printf("NA\n");goto la;}
    if(w[1]=='\''){
      int c;
      for(i=2;w[i]!='#';i++){
	if(w[i]!='='){printf("NA\n");goto la;}
	c++;
      }
      i++;
      for(k=0;k<c;k++){
	if(w[i++]!='='){printf("NA\n");goto la;}
      }
      if(w[i++]!='~'){printf("NA\n");goto la;}
      if(w[i]!='\0'){printf("NA\n");goto la;}
      printf("A\n");
    }
    if(w[1]=='^'){
      for(i=2;w[i]=='~';i+=2){
	if(w[i]!='Q'){printf("NA\n");goto la;}
	if(w[i+1]!='='){printf("NA\n");goto la;}
      }
      if(w[i]!='~'){printf("NA\n");goto la;}
      if(w[i+1]!='~'){printf("NA\n");goto la;}
      if(w[i+2]!='\0'){printf("NA\n");goto la;}
      printf("B\n");
    }
  la:
  }
  return 0;
}

Compiler output:
main.c: In function 'main':
main.c:8:5: error: implicit declaration of function 'gets'; did you mean 'fgets'? [-Wimplicit-function-declaration]
    8 |     gets(w);
      |     ^~~~
      |     fgets
Language: C

#include <stdio.h>

int main(int argc, const char * argv[])
{
    int num;
    int i, j, k, l;
    char snake[200];
    int bodyacnt = 0;
    int bodybcnt = 0;
    int midcnt = 0;
    int endacnt = 0;
    int endbcnt = 0;
    int nacnt = 0;
    
    scanf("%d", &num);
    for (l = 0; l < num + 1; l++) {
        snake[200] = {0};
        bodyacnt = 0;
        bodybcnt = 0;
        midcnt = 0;
        endacnt = 0;
        endbcnt = 0;
        nacnt = 0;
        for (i = 0; i < 200; i++) {
            scanf("%c", &snake[i]);
            if (snake[i] == '\n') {
               // printf("%d\n", i);
                break;
            }
        }
        if (snake[0] == '>') {
            if (snake[1] == '\'') {
                for (j = 2; j < i; j++) {
                    if (snake[j] == '=') {
                        bodyacnt++;
                    }
                    else if (snake[j] == '#'){
                        break;
                    }
                }
                else nacnt++;
                for (k = j; k < i; k++) {
                    if (snake[k] == '=') {
                        midcnt++;
                    }
                    else if (snake[k] == '~'){
                        endacnt++;
                        if (endacnt == 2) {
                            nacnt++;
                        }
                    }
                    else nacnt++;
                }
            }
            else if (snake[1] == '^') {
                for (j = 2; j < i / 2; j+=2) {
                    if (snake[j] == 'Q' && snake[j + 1] == '=') {
                        bodybcnt++;
                    }
                    else nacnt++;
                }
                if (snake[i - 2] == '~' && snake[i - 1] == '~' && snake[i - 3] != '~') {
                    endbcnt++;
                }
            }
            else nacnt++;
        }
    
        if (bodybcnt > 0 && endbcnt == 1 && nacnt == 0){
            printf("B\n");
        }
        else if (bodyacnt == midcnt && endacnt == 1 && nacnt == 0 && bodyacnt > 0) {
            printf("A\n");
        }
        else if (l != 0)printf("NA\n");
    }
    
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:17:22: error: expected expression before '{' token
   17 |         snake[200] = {0};
      |                      ^
main.c:41:17: error: expected '}' before 'else'
   41 |                 else nacnt++;
      |                 ^~~~
main.c: At top level:
main.c:78:5: error: expected identifier or '(' before 'return'
   78 |     return 0;
      |     ^~~~~~
main.c:79:1: error: expected identifier or '(' before '}' token
   79 | }
      | ^
Language: C

#include <stdio.h>

int main(int argc, const char * argv[])
{
    int num;
    int i, j, k, l;
    char snake[200];
    int bodyacnt = 0;
    int bodybcnt = 0;
    int midcnt = 0;
    int endacnt = 0;
    int endbcnt = 0;
    int nacnt = 0;
    
    scanf("%d", &num);
    for (l = 0; l < num + 1; l++) {
        snake[200] = {0};
        bodyacnt = 0;
        bodybcnt = 0;
        midcnt = 0;
        endacnt = 0;
        endbcnt = 0;
        nacnt = 0;
        for (i = 0; i < 200; i++) {
            scanf("%c", &snake[i]);
            if (snake[i] == '\n') {
               // printf("%d\n", i);
                break;
            }
        }
        if (snake[0] == '>') {
            if (snake[1] == '\'') {
                for (j = 2; j < i; j++) {
                    if (snake[j] == '=') {
                        bodyacnt++;
                    }
                    else if (snake[j] == '#'){
                        break;
                    }
                    else nacnt++;
                }
                
                for (k = j; k < i; k++) {
                    if (snake[k] == '=') {
                        midcnt++;
                    }
                    else if (snake[k] == '~'){
                        endacnt++;
                        if (endacnt == 2) {
                            nacnt++;
                        }
                    }
                    else nacnt++;
                }
            }
            else if (snake[1] == '^') {
                for (j = 2; j < i / 2; j+=2) {
                    if (snake[j] == 'Q' && snake[j + 1] == '=') {
                        bodybcnt++;
                    }
                    else nacnt++;
                }
                if (snake[i - 2] == '~' && snake[i - 1] == '~' && snake[i - 3] != '~') {
                    endbcnt++;
                }
            }
            else nacnt++;
        }
    
        if (bodybcnt > 0 && endbcnt == 1 && nacnt == 0){
            printf("B\n");
        }
        else if (bodyacnt == midcnt && endacnt == 1 && nacnt == 0 && bodyacnt > 0) {
            printf("A\n");
        }
        else if (l != 0)printf("NA\n");
    }
    
    return 0;
}

Compiler output:
main.c: In function 'main':
main.c:17:22: error: expected expression before '{' token
   17 |         snake[200] = {0};
      |                      ^
Language: C++

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

int main() {
  int n; cin >> n;
  for(int i = 0; i < n; i++) {
    string s; cin >> s;
    bool a[4] = {}, b[3] = {};
    int cnt = 0;
    for(int j = 0; j < s.size(); j++) {
      if(s[j] == '>') {
        if(!a[1] && s[j+1] == ''') a[0] = true;
        if(s[j+1] == '^') b[0] = true;
      } else if(a[0] && s[j] == '=') {
        a[1] = true;
        cnt++;
      } else if(b[0] && s.substr(j,2) == "Q=") {
        b[1] = true;
      } else if(a[1] && s[j] == '#') {
        a[0] = false;
        a[2] = true;
      } else if(a[2] && s[j] == '=') {
        cnt--;
      } else if(a[1] && cnt == 0 && j+1 == s.size() && s[j] == '~') {
        a[3] = true;
      } else if(b[1] && j+2 == s.size() && s.substr(j,2) == "~~") {
        b[2] = true;
      }
    }

    if(a[3]) cout << 'A' << endl;
    else if(b[2]) cout << 'B' << endl;
    else cout << "NA" << endl;
  }
}

Compiler output:
a.cc:13:31: error: empty character constant
   13 |         if(!a[1] && s[j+1] == ''') a[0] = true;
      |                               ^~
a.cc:13:33: warning: missing terminating ' character
   13 |         if(!a[1] && s[j+1] == ''') a[0] = true;
      |                                 ^
a.cc:13:33: error: missing terminating ' character
   13 |         if(!a[1] && s[j+1] == ''') a[0] = true;
      |                                 ^~~~~~~~~~~~~~~
a.cc: In function 'int main()':
a.cc:13:33: error: expected ';' before 'if'
   13 |         if(!a[1] && s[j+1] == ''') a[0] = true;
      |                                 ^
      |                                 ;
   14 |         if(s[j+1] == '^') b[0] = true;
      |         ~~                       
a.cc:15:7: error: expected primary-expression before '}' token
   15 |       } else if(a[0] && s[j] == '=') {
      |       ^
a.cc:14:39: error: expected ')' before '}' token
   14 |         if(s[j+1] == '^') b[0] = true;
      |                                       ^
      |                                       )
   15 |       } else if(a[0] && s[j] == '=') {
      |       ~                                
a.cc:13:11: note: to match this '('
   13 |         if(!a[1] && s[j+1] == ''') a[0] = true;
      |           ^
a.cc:15:7: error: expected primary-expression before '}' token
   15 |       } else if(a[0] && s[j] == '=') {
      |       ^
Language: C++

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

int main(void){
  string str;
  int n;
  cin>>n;
  while(n--){
    cin>>str;
    int ca = 0;
    int cntsha = 0;
    bool a = true;
    if(str.size()%2 == 0){
      if(str[str.size() / 2] == '#')str[str.size()/2] = '=';
      for(int i = 2 ; i < str.size() - 1 ; i ++){
	if(str[i] != '='){
	  a = false;
	  break;
	}
      } 
      if(a)ca = 1;
    }
    if(ca != 1){
    bool b = true;
    for(int i = 2 ; i < str.size() - 2 ; i ++){
      //cout<<str[i];
      if(i%2){
	if(str[i] != '='){
	  b = false;
	  //cout<<i<<endl;
	  break;
	}
      }else{
	if(str[i] != 'Q'){
	  b = false;
	  //cout<<i<<endl;
	  break;
	}	
      }
    }
    if(b){
      ca = 2;
    }
    }
    if(ca == 1){
      cout<<"A"<<endl;
    }else if(ca == 2){
      cout<<"B"<<endl;
    }else{
      cout<<"NA"<<endl;
    }
  }
}
#include<iostream>
#include<string>
using namespace std;

int main(void){
  string str;
  int n;
  cin>>n;
  while(n--){
    cin>>str;
    int ca = 0;
    int cntsha = 0;
    bool a = true;
    if(str.size()%2 == 0){
      if(str[str.size() / 2] == '#')str[str.size()/2] = '=';
      for(int i = 2 ; i < str.size() - 1 ; i ++){
	if(str[i] != '='){
	  a = false;
	  break;
	}
      } 
      if(a)ca = 1;
    }
    if(ca != 1){
    bool b = true;
    for(int i = 2 ; i < str.size() - 2 ; i ++){
      //cout<<str[i];
      if(i%2){
	if(str[i] != '='){
	  b = false;
	  //cout<<i<<endl;
	  break;
	}
      }else{
	if(str[i] != 'Q'){
	  b = false;
	  //cout<<i<<endl;
	  break;
	}	
      }
    }
    if(b){
      ca = 2;
    }
    }
    if(ca == 1){
      cout<<"A"<<endl;
    }else if(ca == 2){
      cout<<"B"<<endl;
    }else{
      cout<<"NA"<<endl;
    }
  }
}

Compiler output:
a.cc:59:5: error: redefinition of 'int main()'
   59 | int main(void){
      |     ^~~~
a.cc:5:5: note: 'int main()' previously defined here
    5 | int main(void){
      |     ^~~~
Language: C++

#include <iostream>
#include <string>
#include <sstream>
#include <algorithm>
#include <vector>
#include <utility>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>

using namespace std;

#define rep(i,n) for(int i=0; i<(n); i++)
#define repc(i,s,e) for(int i=(s); i<(e); i++)
#define pb(n) push_back((n))
#define mp(n,m) make_pair((n),(m))
#define all(r) r.begin(),r.end()
#define fi first
#define se second

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef vector<ll> vl;
typedef vector<vl> vll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;


int main() {
	int n;
	string s;
	cin >> n;
	rep(i, n) {
		cin >> s;
		string ans;
		if (s[0] == '>'&&s[s.size() - 1] == '~') {
			if (s[1] == '\'') {
				ans = "A";
				for (int i = 2; i < s.size() - 1) {
					if (i == s.size() / 2) {
						if (s[i] != '#') {
							ans = "NA";
							break;
						}
					}
					else {
						if (s[i] != '=') {
							ans = "NA";
							break;
						}
					}
				}
			}
			else if (s[1] == '^'&&s[s.size()-2]=='~') {
				ans = "B";
				for (int i = 2; i < s.size() - 2; i += 2) {
					if (s[i] != 'Q' || s[i + 1] != '=') {
						ans = "NA";
						break;
					}
				}
			}
			else ans = "NA";
		}
		else {
			ans = "NA";
		}
		cout << ans << endl;
	}
}

Compiler output:
a.cc: In function 'int main()':
a.cc:45:65: error: expected ';' before ')' token
   45 |                                 for (int i = 2; i < s.size() - 1) {
      |                                                                 ^
      |                                                                 ;
Language: C++

#include <string>
#include <iostream>
using namespace std;
int n; string s;
bool check() {
	if(s.size() < 6) return 0;
	if(s[0] != '>') return 0;
	if(s[1] != '\'') {
		int cnt = 0;
		for(int i = 2; i < s.size() - 1; i++) {
			if(s[i] != '=') break;
			cnt++;
		}
		if(s[2 + cnt] != '#') return 0;
		for(int j = cnt + 3; j < s.size(); j++) {
			if(s[i] != '=') break;
			cnt--;
		}
		if(cnt) return 0;
		if(2 + cnt + 1 != s.size()) return 0;
		return s[2 + cnt] == '~' ? 1 : 0;
	}
	if(s[1] != '^') {
		int cnt = 0;
		for(int i = 2; i < s.size() - 2; i += 2) {
			if(s[i] != 'Q' || s[i + 1] != '=') break;
			cnt += 2;
		}
		if(cnt + 4 != s.size()) return 0;
		return (s[cnt + 2] == '~' && s[cnt + 3] == '~') ? 2 : 0;
	}
	return 0;
}
int main() {
	scanf("%d", &n);
	for(int i = 0; i < n; i++) {
		cin >> s;
		printf("%s\n", !check() ? "NA" : (check() == 1 ? "A" : "B"));
	}
	return 0;
}

Compiler output:
a.cc: In function 'bool check()':
a.cc:16:30: error: 'i' was not declared in this scope
   16 |                         if(s[i] != '=') break;
      |                              ^
Language: C++

#include <iostream>

#define NA cout << "NA" << endl; goto LABEL

using namespace std;

int main() {

	int snakeCount;
	cin >> snakeCount;

	for(int loopCount = 0; loopCount < snakeCount; loopCount++) {
		char arr[201];
		???in >> arr;
		int i = 0;

		if(arr[i]!='>') {
			NA;
		}
		i++;

		if(arr[i]=='\'') {
			int equalCount = 0;
			bool mode = false;
			for(int j = i+1; j < 201; j++) {
				if(arr[j]=='=') {
					if(!mode) {
						equalCount++;
					}else {
						equalCount--;
					}
				}else if(arr[j]=='#') {
					if(!mode && equalCount>0) {
						mode = !mode;
					}else {
						NA;
					}
				}else if(arr[j]=='~') {
					if(arr[j+1]=='\0'&&equalCount==0&&mode) {
						cout << "A" << endl;
						goto LABEL;
					}else {
						NA;
					}
				}else {
					NA;
				}
			}
		}else if(arr[i]=='^') {
			int count = 0;
			for(int j = i+1; j < 201; j++) {
				if(arr[j]=='Q'&&arr[j+1]=='=') {
					j++;
					count++;
					continue;
				}else if(arr[j]=='~'&&arr[j+1]=='~'&&arr[j+2]=='\0'&&count>0) {
					cout<< "B" << endl;
					goto LABEL;
				}else {
					NA;
				}
			}
		}else {
			NA;
		}
		LABEL:;
	}

	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:14:17: error: expected primary-expression before '?' token
   14 |                 ???in >> arr;
      |                 ^
a.cc:14:18: error: expected primary-expression before '?' token
   14 |                 ???in >> arr;
      |                  ^
a.cc:14:19: error: expected primary-expression before '?' token
   14 |                 ???in >> arr;
      |                   ^
a.cc:14:20: error: 'in' was not declared in this scope; did you mean 'int'?
   14 |                 ???in >> arr;
      |                    ^~
      |                    int
a.cc:14:29: error: expected ':' before ';' token
   14 |                 ???in >> arr;
      |                             ^
      |                             :
a.cc:14:29: error: expected primary-expression before ';' token
a.cc:14:29: error: expected ':' before ';' token
   14 |                 ???in >> arr;
      |                             ^
      |                             :
a.cc:14:29: error: expected primary-expression before ';' token
a.cc:14:29: error: expected ':' before ';' token
   14 |                 ???in >> arr;
      |                             ^
      |                             :
a.cc:14:29: error: expected primary-expression before ';' token
Language: C++

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

string solv(string s){
	int ss = s.size();
	if(s[0] != '>' || s[ss-1] != '~')return "NA";
	if(s[ss-2] == '~'){
		if(s[1] != '^')return "NA";
		for(int i = 0;i < ss-2;i++){
			if(s[i] == 'Q' && s[i+1] == '=')return "B";
		}
	}else{
		fi(s[1] != ''')return "NA";
		int a = 0, f = 0;
		for(int i = 1;i < ss-1;i++){
			if(s[i] == '=' && !f)a++;
			if(s[i] == '#')f = 1;
			if(f && !a)return "NA";
			if(s[i] == '=' && f)a--;
		}
		return a ? "NA" : "A";
	}
	return "NA";
}

int main(){
	int n;cin >> n;
	string s;
	while(n--){
		cin >> s;
		cout << solv(s) << endl;
	}
	return 0;
}

Compiler output:
a.cc:14:28: error: empty character constant
   14 |                 fi(s[1] != ''')return "NA";
      |                            ^~
a.cc:14:30: warning: missing terminating ' character
   14 |                 fi(s[1] != ''')return "NA";
      |                              ^
a.cc:14:30: error: missing terminating ' character
   14 |                 fi(s[1] != ''')return "NA";
      |                              ^~~~~~~~~~~~~~
a.cc: In function 'std::string solv(std::string)':
a.cc:14:30: error: expected ')' before 'int'
   14 |                 fi(s[1] != ''')return "NA";
      |                   ~          ^
      |                              )
   15 |                 int a = 0, f = 0;
      |                 ~~~           
a.cc:15:28: error: 'f' was not declared in this scope
   15 |                 int a = 0, f = 0;
      |                            ^
a.cc:17:46: error: 'a' was not declared in this scope
   17 |                         if(s[i] == '=' && !f)a++;
      |                                              ^
a.cc:19:34: error: 'a' was not declared in this scope
   19 |                         if(f && !a)return "NA";
      |                                  ^
a.cc:20:45: error: 'a' was not declared in this scope
   20 |                         if(s[i] == '=' && f)a--;
      |                                             ^
a.cc:22:24: error: 'a' was not declared in this scope
   22 |                 return a ? "NA" : "A";
      |                        ^
Language: C++

#include<iostream>
#include<string>
using namespace std;
int main(){
  int n,size;
  string s,a,b;
  for(cin>>n;n>0;n--){
    cin>>s;
    size = s.size();
    if(size%2){cout<<"NA"<<endl;continue}
    a=">'";
    b=">^";
    for(int i=0;i<size/2-2;i++){a=a+"=";b=b+"Q=";}
    a+="#";
    for(int i=0;i<size/2-2;i++){a=a+"=";}
    a+="~";
    b+="~~";
    if (s==a)cout<<"A"<<endl;
    else if (s==b)cout<<"B"<<endl;
    else cout<<"NA"<<endl;
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:10:41: error: expected ';' before '}' token
   10 |     if(size%2){cout<<"NA"<<endl;continue}
      |                                         ^
      |                                         ;
Language: C++

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

class Main{
	public static void main(String[] args){
		Scanner sc=new Scanner(System.in);
		int n=sc.nextInt();
		for(int i=0;i<n;i++){
			String s=sc.next();
			if(s.matches("^>'(=+)#\\1~$"))
				System.out.println("A");
			else if(s.matches("^>\\^(Q=)+~~$"))
				System.out.println("B");
			else
				System.out.println("NA");
		}
	}
}

Compiler output:
a.cc:1:1: error: 'import' does not name a type
    1 | import java.lang.*;
      | ^~~~~~
a.cc:1:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:2:1: error: 'import' does not name a type
    2 | import java.util.*;
      | ^~~~~~
a.cc:2:1: note: C++20 'import' only available with '-fmodules-ts'
a.cc:5:15: error: expected ':' before 'static'
    5 |         public static void main(String[] args){
      |               ^~~~~~~
      |               :
a.cc:5:33: error: 'String' has not been declared
    5 |         public static void main(String[] args){
      |                                 ^~~~~~
a.cc:5:42: error: expected ',' or '...' before 'args'
    5 |         public static void main(String[] args){
      |                                          ^~~~
a.cc:18:2: error: expected ';' after class definition
   18 | }
      |  ^
      |  ;
a.cc: In static member function 'static void Main::main(int*)':
a.cc:6:17: error: 'Scanner' was not declared in this scope
    6 |                 Scanner sc=new Scanner(System.in);
      |                 ^~~~~~~
a.cc:7:23: error: 'sc' was not declared in this scope
    7 |                 int n=sc.nextInt();
      |                       ^~
a.cc:9:25: error: 'String' was not declared in this scope
    9 |                         String s=sc.next();
      |                         ^~~~~~
a.cc:10:28: error: 's' was not declared in this scope
   10 |                         if(s.matches("^>'(=+)#\\1~$"))
      |                            ^
a.cc:11:33: error: 'System' was not declared in this scope
   11 |                                 System.out.println("A");
      |                                 ^~~~~~
a.cc:13:33: error: 'System' was not declared in this scope
   13 |                                 System.out.println("B");
      |                                 ^~~~~~
a.cc:15:33: error: 'System' was not declared in this scope
   15 |                                 System.out.println("NA");
      |                                 ^~~~~~
Language: C++

#include <iostream>
#include <string>

using namespace std;


int main() {

  int n;
  string snake;

  int idx;

  int count;


  cin >> n;

  getline(cin,snake);

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

    getline(cin,snake);

    //明らかにどちらのヘビでもない
    if(snake[0]!='>') {

      cout << "NA" << endl;

      break;

    }

    else {

      //A種であるか判定
      if(snake[1]=='\'') {

	if(snake[2]!='=') {

	  cout << "NA" << endl;

	  goto NA;

	}

	idx=3;

	count=1;

	while(1) {

	  if(snake[idx]!='=' && snake[idx]!='#') {
	    
	    cout << "NA" << endl;

	    goto NA;

	  }

	  else if(snake[idx]=='=') {

	    idx++;
	    
	    count++;

	  }

	  else if(snake[idx]=='#') {

	    idx++;

	    break;

	  }

	}

	while(1) {

	  if(snake[idx]!='=' && snake[idx]!='~') {
	  
	    cout << "NA" << endl;

	    goto NA;

	  }

	  else if(snake[idx]=='=') {

	    idx++;

	    count--;

	  }

	  else if(snake[idx]=='~' && idx==snake.length()-1) {

	    if(count==0) break;

	    else {
	      
	      cout << "NA" << endl;

	      goto NA;

	    }
	      
	  }

	  else {

	    cout << "NA" << endl;

	    goto NA;

	  }

	}

	cout << "A" << endl;

      }

      //B種であるか判定
      else if(snake[1]=='^') {

	if(snake[2]!='Q') {

	  cout << "NA" << endl;

	  goto NA;p

	}

	if(snake[3]!='=') {

	  cout << "NA" << endl;

	  goto NA;

	}

	idx=4;

	while(1) {

	  if(snake[idx]!='Q') break;

	  idx++;

	  if(snake[idx]!='=') {

	    cout << "NA" << endl;

	    goto NA;

	  }

	  idx++;

	}

	if((snake[idx]!='~' || snake[idx+1]!='~') || snake.length()>idx+2) {

	  cout << "NA" << endl;

	  goto NA;

	}

	cout << "B" << endl;

      }

      else {

	cout << "NA" << endl;

	goto NA;

      }

    }

  NA:
    ;

  }

  return 0;

}

Compiler output:
a.cc: In function 'int main()':
a.cc:132:19: error: 'p' was not declared in this scope
  132 |           goto NA;p
      |                   ^
Language: C++

#include <stdio.h>
#include <math.h>
int main(){
    int syucnt[1000]={0},n,i,t,l,gou=0;
	char input[10000];
	scanf("%d",&n);
	for(i=0;i<n;i++){
		scanf("%s",input);
		l = strlen(input);
        if(input[l-1]=='~'&&input[l-2]=='~'){//B種の調べ
            for(t=2;t<=l-4;t=t+2){
                if(input[t]=='Q'&&input[t+1]=='='){
                    gou++;
                }
            }
            if(gou*2==l-4){
                syucnt[i]=2;
            }else syucnt[i]=3;
            gou=0;
        }else if(input[l/2]=='#'&&input[l-1]=='~'&&(l-4)%2==0){
            int j=2;
            for(t=0;t<(l-4)/2;t++){
                if(input[j]=='='&&input[l-j]=='='){
                    gou++;
                }
                j++;
            }
            if(gou==((l-4)/2)){
                syucnt[i]=1;
            }else syucnt[i]=3;
            gou=0;
        }else syucnt[i]=3;
    }
    for(i=0;i<n;i++){//出力
        if(syucnt[i]==1){
            puts("A");
        }else if(syucnt[i]==2){
            puts("B");
        }else if(syucnt[i]==3){
            puts("NA");
        }
    }
    return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:9:21: error: 'strlen' was not declared in this scope
    9 |                 l = strlen(input);
      |                     ^~~~~~
a.cc:3:1: note: 'strlen' is defined in header '<cstring>'; this is probably fixable by adding '#include <cstring>'
    2 | #include <math.h>
  +++ |+#include <cstring>
    3 | int main(){
Language: C++

#include <iostream>
#include <algorithm>

using namespace std;

int main() {
  int Tc; string s;
  while(cin>>Tc) {
    while(Tc--) {
      cin >> s;
      int const N = s.size();
      bool NA = 0;
      bool isA;
      if(s[0] != '>') NA = 1;
      if(s[1] == '\'') {
	for(int i=2; i<(N-3)/2+2; i++) if(s[i]!='=') NA=1;
	if(s.substr(2, (N-3)/2) + "~" != s.substr(3+(N-3)/2)) NA = 1;
	if(s[(N-3)/2+2] != '#') NA = 1;
	isA = 1;
      }
      else if(s[1] == '^') {
	int cnt;
	for(cnt=2; cnt<N-2; cnt+=2) {
	  if(!(s[cnt] == 'Q' && s[cnt+1] == '=')) NA = 1;
	}
	if(!(s[cnt] == '~' && s[cnt+1] == '~')) NA = 1;
	if(cnt+2 != N) NA = 1
	isA = 0;
      }
      else {
	NA = 1;
      }
      
      if(NA) cout << "NA" << endl;
      else if(isA) cout << "A" << endl;
      else cout << "B" << endl;
    }
  }
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:27:30: error: expected ';' before 'isA'
   27 |         if(cnt+2 != N) NA = 1
      |                              ^
      |                              ;
   28 |         isA = 0;
      |         ~~~
Language: C++

#include <iostream>
#include <algorithm>
#include <string>

using namespace std;

int main() {
  int Tc; string s;
  while(cin>>Tc) {
    while(Tc--) {
      cin >> s;
      int const N = s.size();
      bool NA = 0;
      bool isA;
      if(s[0] != '>') NA = 1;
      if(s[1] == '\'') {
	for(int i=2; i<(N-3)/2+2; i++) if(s[i]!='=') NA=1;
	if(s.substr(2, (N-3)/2) + "~" != s.substr(3+(N-3)/2)) NA = 1;
	if(s[(N-3)/2+2] != '#') NA = 1;
	isA = 1;
      }
      else if(s[1] == '^') {
	int cnt;
	for(cnt=2; cnt<N-2; cnt+=2) {
	  if(!(s[cnt] == 'Q' && s[cnt+1] == '=')) NA = 1;
	}
	if(!(s[cnt] == '~' && s[cnt+1] == '~')) NA = 1;
	if(cnt+2 != N) NA = 1
	isA = 0;
      }
      else {
	NA = 1;
      }
      
      if(NA) cout << "NA" << endl;
      else if(isA) cout << "A" << endl;
      else cout << "B" << endl;
    }
  }
  
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:28:30: error: expected ';' before 'isA'
   28 |         if(cnt+2 != N) NA = 1
      |                              ^
      |                              ;
   29 |         isA = 0;
      |         ~~~
Language: C

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

int main(){
	int n, src, dir = 1, dst, spc;
	cin >> n;
	for(int i=0;i<n;i++){
		cin >> src >> dst;
		spc = 0;
		if(src<dst || (src>dst && src>=6))dir = 1;
		else dir = -1;
		int j=0;
		do{
			if(src+j>9){
				j=5-src;
				dir = -1;
			}
			if(spc++ != 0)cout << " ";
			cout << src+j;
		}while(src+(dir>0 ? j++ : j--)!=dst);
		if(i!=n-1)cout << endl;
	}
	return 0;
}


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<stdio.h>
int main(){
int n,a,b,i;
scanf("%d",&n);
while(n-->0){
scanf("%d %d",&a,&b);
if(a>=0&&5>=a){
if(b>a){
for(i=a;i<b;i++)
printf("%d ",i);
printf("%d\n",b);
}
else {
for(i=a;i>b;i--)
printf("%d ",i);
printf("%d\n",b);
}
}
else {
if(b>5&&10>b&&b>a){
for(i=a;i<b;i++)
printf("%d ",i);
printf("%d\n",b);
}
else
if(b>=0&&5>=b){
for(i=a;i<10;i++)
printf("%d ",i);
for(i=5;i>b;i--)
printf("%d ",i);
printf("%d\n",b);
}
else
if(b>=6&&9>=b&&b<a){
for(i=a;i<10;i++)
printf("%d ",i);
for(i=5;i>0;i--)
printf("%d ",i);
for(i=0;i<b;i++)
printf("%d ",i);
printf("%d\n",b);
}
}
return 0;
}

Compiler output:
main.c: In function 'main':
main.c:45:1: error: expected declaration or statement at end of input
   45 | }
      | ^
Language: C

#include <stdio.h>

int main(void) {
	int datanum,datamax;
	int start,end;
	int i;
	scanf("%d",&datamax);
	for(datanum=0;datanum<datamax;datanum++) {
		scanf("%d %d",&start,&end);
		if(start<=5 && end<start) {
			for(i=start;i>=end;i--) {
				printf("%d",i);
				if(i>end)printf(" ");
			}
		} else if(start<=5 && end>start) {
			for(i=start;i<=end;i++) {
				printf("%d",i);
				if(i<end)printf(" ");
			}
		} else if(start<end) {
			for(i=start;i<end;i++) {
				printf("%d",i);
				if(i<end)printf(" ");
			}
		} else if(end<=5) {
			for(i=start;i<=9;i++) {
				printf("%d ",i);
			}
			for(i=5;i>=end;i--) {
				printf("%d",i);
				if(i>end)printf(" ");
			}
		} else {
			for(i=start;i<=9;i++) {
				printf("%d ",i);
			}
			printf("5 4 3 2 1 0 1 2 3 4 5 ");
			for(i=6;i<=end;i++) {
				printf("%d",i);
				if(i<end)printf(" ");
			}
			}
		}
	}
	return 0;
}

Compiler output:
main.c:45:9: error: expected identifier or '(' before 'return'
   45 |         return 0;
      |         ^~~~~~
main.c:46:1: error: expected identifier or '(' before '}' token
   46 | }
      | ^
Language: C

#include <Stdio.h>
#include <math.h>

int main(void) {
    int bus_stop[15] = {0,1,2,3,4,5,6,7,8,9,5,4,3,2,1};
    int start, end, spin, n_spin;
    int num, i, j, idx1, idx2;
    
    scanf("%d", &num);
    
    while(num--) {
    
        scanf("%d %d", &start, &end);
        
        for(j = 0; j < 10; j++) {
            if(bus_stop[j] == start) {
                idx1 = j;
            }
            if(bus_stop[j] == end) {
                idx2 = j;
            }
        }

        spin = (idx1 + 1) + (15 - idx2);
        n_spin = fabs(idx2 - idx1) + 1;

        if(n_spin < spin) {
            if(start > end) {
                for(i = idx1; i >= idx2; i--) {
                    printf("%d", bus_stop[i]);
                    if(i == idx2)
                        putchar('\n');
                    else
                        putchar(' ');
                }
            }
            else if(start < end) {
                for(i = idx1; i <= idx2; i++) {
                    printf("%d", bus_stop[i]);
                    if(i == idx2)
                        putchar('\n');
                    else
                        putchar(' ');
                }
            }
        } else if(spin < n_spin) {
            for(i = idx1; i >= 0; i--) {
                printf("%d", bus_stop[i]);
                if(i == idx2)
                    putchar('\n');
                else
                    putchar(' ');
            }
            for(i = 14; i >= idx2; i--) {
                printf("%d", bus_stop[i]);
                if(i == idx2)
                    putchar('\n');
                else
                    putchar(' ');
            }
        }
    }
    
    return(0);
}

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

#include <iostream>
#include <cstdio>
#include <algorithm>
#include <cassert>
#include <vector>
#include <string>
#include <cmath>
#include <map> 
using namespace std;
 
const int MAX= 10000100;

#define loop(i,a,b) for(int i = a ; i < b ; i ++)
#define rep(i,a) loop(i,0,a)
#define all(a) (a).begin(),(a).end()
#define ll long long int
#define gcd(a,b) __gcd(a,b)

int GCD(int a, int b) {if(!b) return a; return gcd(b, a%b);}
int lcm(int a, int b) {return a*b / gcd(a, b);}

#deefine N 15
int d[N] = {0, 1, 2, 3, 4, 5 ,6 ,7 ,8 ,9 ,5 ,4 ,3 ,2 ,1};

int main(void){
  int n ;
  while(n--){
    int a,b;
    cin>>a>>b;
    if(a<=5 && b < a){
      a = 15 - a;
    }
    while(d[a] != b){
      cout<<d[a]<<" ";
      a = (a + 1) % N; 
    }
    cout<<d[a]<<endl;
  }
}

Compiler output:
a.cc:22:2: error: invalid preprocessing directive #deefine; did you mean #define?
   22 | #deefine N 15
      |  ^~~~~~~
      |  define
a.cc:23:7: error: 'N' was not declared in this scope
   23 | int d[N] = {0, 1, 2, 3, 4, 5 ,6 ,7 ,8 ,9 ,5 ,4 ,3 ,2 ,1};
      |       ^
a.cc: In function 'int main()':
a.cc:33:11: error: 'd' was not declared in this scope
   33 |     while(d[a] != b){
      |           ^
a.cc:35:21: error: 'N' was not declared in this scope
   35 |       a = (a + 1) % N;
      |                     ^
a.cc:37:11: error: 'd' was not declared in this scope
   37 |     cout<<d[a]<<endl;
      |           ^
Language: C++

#include<stdio.h>

int main(){

int n,s,f;
int w;

while(1){
scanf("%d",&n);if(n==0)break;

for(int i=0;i<n;i++)
scanf("%d %d",&s,&f);

if(s<=5){
 if(s<f){
for(int i=s;i<=f;i++)
{
if(i!=s)printf(" ");
printf("%d",i);
}
     }
else if(s>f){
for(int i=s;i>=f;i--)
{
if(i!=s)printf(" ");
printf("%d",i);
}
}

if(s>5){
 if(f>6){
for(int i=s;i<=f;i++)
{
if(i!=s)printf(" ");
printf("%d",i);
}
}
 if(f<=5){
for(int i=s;i<=9;i++)
{
if(i!=s)printf(" ");
printf("%d",i);
}

for(int i=5;i>=f;i--)
{
if(i!=5)printf(" ");
printf("%d",i);
}

}
}

return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:55:2: error: expected '}' at end of input
   55 | }
      |  ^
a.cc:8:9: note: to match this '{'
    8 | while(1){
      |         ^
a.cc:55:2: error: expected '}' at end of input
   55 | }
      |  ^
a.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^
Language: C++

int main()
{
  const int busstop[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 5, 4, 3, 2, 1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
  const int bussize = sizeof(busstop) / sizeof(int);

  int n;
  while (cin >> n) {
    while (n--) {
      int a, b;
      cin >> a >> b;

      int s = 0;
      for (; s < bussize; ++s) {
	if (busstop[s] == a)
	  break;
      }

      vector<int> ans;
      for (int i = s; i < bussize; ++i) {
	ans.push_back(busstop[i]);
	if (busstop[i] == b)
	  break;
      }

      if (1 <= a && a <= 5 && b < a) {
	vector<int> rev;
	for (int i = s; i >= 0; --i) {
	rev.push_back(busstop[i]);
	if (busstop[i] == b)
	  break;
	}
	if (rev.size() < ans.size())
	  ans = rev;
      }

      for (int i = 0; i < ans.size()-1; ++i)
	cout << ans[i] << " ";
      cout << ans.back() << endl;
    }
  }
  return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:7:10: error: 'cin' was not declared in this scope
    7 |   while (cin >> n) {
      |          ^~~
a.cc:18:7: error: 'vector' was not declared in this scope
   18 |       vector<int> ans;
      |       ^~~~~~
a.cc:18:14: error: expected primary-expression before 'int'
   18 |       vector<int> ans;
      |              ^~~
a.cc:20:9: error: 'ans' was not declared in this scope
   20 |         ans.push_back(busstop[i]);
      |         ^~~
a.cc:26:16: error: expected primary-expression before 'int'
   26 |         vector<int> rev;
      |                ^~~
a.cc:28:9: error: 'rev' was not declared in this scope
   28 |         rev.push_back(busstop[i]);
      |         ^~~
a.cc:32:13: error: 'rev' was not declared in this scope
   32 |         if (rev.size() < ans.size())
      |             ^~~
a.cc:32:26: error: 'ans' was not declared in this scope
   32 |         if (rev.size() < ans.size())
      |                          ^~~
a.cc:36:27: error: 'ans' was not declared in this scope
   36 |       for (int i = 0; i < ans.size()-1; ++i)
      |                           ^~~
a.cc:37:9: error: 'cout' was not declared in this scope
   37 |         cout << ans[i] << " ";
      |         ^~~~
a.cc:38:7: error: 'cout' was not declared in this scope
   38 |       cout << ans.back() << endl;
      |       ^~~~
a.cc:38:15: error: 'ans' was not declared in this scope
   38 |       cout << ans.back() << endl;
      |               ^~~
a.cc:38:29: error: 'endl' was not declared in this scope
   38 |       cout << ans.back() << endl;
      |                             ^~~~
Language: C++

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int num[]={0,1,2,3,4,5,6,7,8,9,5,4,3,2,1,0};
    for(int i=0,x,y;i<n;i++){
        cin>>x>>y;
        if(x<6&&y<6&&y-x>0){
            cout<<num[x];
            for(int j=x+1;j<=y;j++)cout<<" "<<num[j];
            cout<<endl;
        }
        else if(x<6&&y<6){
            cout<<num[15-x];
            for(int j=16-x;j<16-y;j++)cout<<" "<<num[j];
            cout<<endl;
        }
        else{
            cout<<num[x];
            for(int j=x+1;num[j-1]!=y;j++){
                if(j==16)j=1;
                cout<<" "<<num[j];
            }
            cout<<endl;
        }
    }

Compiler output:
a.cc: In function 'int main()':
a.cc:28:6: error: expected '}' at end of input
   28 |     }
      |      ^
a.cc:4:1: note: to match this '{'
    4 | {
      | ^
Language: C++

#include <iostream>
using namespace std;
int s[15] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 5, 4, 3, 2, 1};

void disp(int a, int b){
	for(int i = a+1;;i++){
		cout << " " << s[i%15];
		if(s[i%15] == b){cout << endl;return 0;}
	}
}

int main(){
	int n, a, b;cin >> n;
	while(n--){
		cin >> a >> b;cout << a;
		if(6 <= a && a <= 9)disp(a, b);
		else disp(0 < b-a ? a : 15-a, b);
	}
	return 0;
}

Compiler output:
a.cc: In function 'void disp(int, int)':
a.cc:8:54: error: return-statement with a value, in function returning 'void' [-fpermissive]
    8 |                 if(s[i%15] == b){cout << endl;return 0;}
      |                                                      ^
Language: C++

int main(){int s,t,d,n;scanf("%d",&n);while(n--){scanf("%d %d",&s,&t);d=(t<s&&s<6)? -1:1;while(t!=s){printf("%d ",s);s+=d;if(s>9){d=-1;s=5;}elseif(s<0){d=1;s=1;}}printf("%d\n",t);}return 0;}

Compiler output:
a.cc: In function 'int main()':
a.cc:1:24: error: 'scanf' was not declared in this scope
    1 | int main(){int s,t,d,n;scanf("%d",&n);while(n--){scanf("%d %d",&s,&t);d=(t<s&&s<6)? -1:1;while(t!=s){printf("%d ",s);s+=d;if(s>9){d=-1;s=5;}elseif(s<0){d=1;s=1;}}printf("%d\n",t);}return 0;}
      |                        ^~~~~
a.cc:1:102: error: 'printf' was not declared in this scope
    1 | int main(){int s,t,d,n;scanf("%d",&n);while(n--){scanf("%d %d",&s,&t);d=(t<s&&s<6)? -1:1;while(t!=s){printf("%d ",s);s+=d;if(s>9){d=-1;s=5;}elseif(s<0){d=1;s=1;}}printf("%d\n",t);}return 0;}
      |                                                                                                      ^~~~~~
a.cc:1:1: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
  +++ |+#include <cstdio>
    1 | int main(){int s,t,d,n;scanf("%d",&n);while(n--){scanf("%d %d",&s,&t);d=(t<s&&s<6)? -1:1;while(t!=s){printf("%d ",s);s+=d;if(s>9){d=-1;s=5;}elseif(s<0){d=1;s=1;}}printf("%d\n",t);}return 0;}
a.cc:1:141: error: 'elseif' was not declared in this scope
    1 | int main(){int s,t,d,n;scanf("%d",&n);while(n--){scanf("%d %d",&s,&t);d=(t<s&&s<6)? -1:1;while(t!=s){printf("%d ",s);s+=d;if(s>9){d=-1;s=5;}elseif(s<0){d=1;s=1;}}printf("%d\n",t);}return 0;}
      |                                                                                                                                             ^~~~~~
a.cc:1:163: error: 'printf' was not declared in this scope
    1 | int main(){int s,t,d,n;scanf("%d",&n);while(n--){scanf("%d %d",&s,&t);d=(t<s&&s<6)? -1:1;while(t!=s){printf("%d ",s);s+=d;if(s>9){d=-1;s=5;}elseif(s<0){d=1;s=1;}}printf("%d\n",t);}return 0;}
      |                                                                                                                                                                   ^~~~~~
a.cc:1:163: note: 'printf' is defined in header '<cstdio>'; this is probably fixable by adding '#include <cstdio>'
Language: Java

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

import static java.lang.Integer.parseInt;

/**
 * Spiral Pattern
 */
public class P0141 {

	static final int[][] DIR = {
			{-1, 0},
			{0, 1},
			{1, 0},
			{0, -1},
	};

	public static void main(String[] args) throws IOException {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		String line;
		String[] words;

		while ((line = br.readLine()) != null && !line.isEmpty()) {

			int d = parseInt(line);

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

				int n = parseInt(br.readLine());
				char[][] grid = new char[n][n];
				int[] path = new int[n];

				for (int j = 0; j < grid.length; j++) {
					Arrays.fill(grid[j], ' ');
				}

				for (int j = 0; j < n; j++) {
					path[j] = n - j;
					if (j > 0 && (j & 1) == 0) path[j]++;
				}

				int y = n, x = 0;

				for (int j = 0; j < path.length; j++) {
					for (int k = 0; k < path[j]; k++) {
						y += DIR[j % 4][0];
						x += DIR[j % 4][1];
						grid[y][x] = '#';
					}
				}

				//
				for (int j = 0; j < grid.length; j++) {
					System.out.println(grid[j]);
				}
				if (i < d - 1) System.out.println();
			}
		}
	}
}

Compiler output:
Main.java:11: error: class P0141 is public, should be declared in a file named P0141.java
public class P0141 {
       ^
1 error
Language: C

#include<stdio.h>
#include<string.h>
int N,s,i,j,mv[4][2]={{0,-1},{1,0},{0,1},{-1,0}},x,y,S,r;
char M[105][105],E[3][30]={"#","##\n#","###\n# #\n# #"};

int c(int n){return 0<=n-1&&n+1<100;}

int c2(int x,int y)
{
	int i,m[5]={1,0,-1,0,1},c=0,c2=0;
	for(i=0;i<4;i++)
	{
		if(M[y+m[i]][x+m[i+1]]=='#')c++;
		if((mv[i][1]&&M[y+(mv[i][1]*2)][x]=='#')||(mv[i][0]&&M[y][x+(mv[i][0]*2)]=='#'))c2++;
	}
	return c>1?1:c2==4?2:0;
}

int main()
{
	for(scanf("%d",&N);puts(""))
	{
		memset(M,0,sizeof(M));
		scanf("%d",&S);s=S;
		if(s<4)puts(E[s-1]);
		else
		{
			for(i=0,x=0,y=s-1;;i=(i+1)%4)
			{
				for(;0<=y+mv[i][1]&&y+mv[i][1]<s&&0<=x+mv[i][0]&&x+mv[i][0]<s;y+=mv[i][1],x+=mv[i][0])
					{
						if(c(x)&&c(y)&&(r=c2(x,y)))
						{
							if(r==2)M[y][x]='#';
							goto e;
						}
						M[y][x]='#';
						if((mv[i][1]&&M[y+(mv[i][1]*2)][x]=='#')||(mv[i][0]&&M[y][x+(mv[i][0]*2)]=='#'))
							break;
					}
			}
			e:for(i=0;i<S;i++,puts(""))
				  for(j=0;j<S;j++)
					printf("%c",M[i][j]==0?' ':M[i][j]);
		}
	}
	return 0;
}

Compiler output:
main.c: In function 'main':
main.c:21:36: error: expected ';' before ')' token
   21 |         for(scanf("%d",&N);puts(""))
      |                                    ^
      |                                    ;