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

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

int main() {
  int h,w , n;
  cin >> h >> w >> n;
  vector < tuple <int,int,int>> a(n);
  for (int i=0 ; i<n ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    a.at(i) = make_tuple(a,b,c) ;
  }
  int ld_x =0, ld_y = h , ru_x = w , ru_y = h;
  for ( int i=0 ; i<n; i++){
    if ( a[i][2]==1){
      ld_x = max(ld_x , a[i][0])
    }else if ( a[i][2]==2){
      ru_x = min(ru_x , a[i][0])
    }else if ( a[i][2]==3){
      ld_y = max(ld_y , a[i][1])
    }else if ( a[i][2]==1){
      ru_y = min(ru_y , a[i][1])
    }
  }
  cout << (ru_x - ld_x)*(ru_y - ld_y) << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: request for member 'at' in 'a', which is of non-class type 'int'
   11 |     a.at(i) = make_tuple(a,b,c) ;
      |       ^~
a.cc:15:14: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   15 |     if ( a[i][2]==1){
      |              ^
a.cc:16:29: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   16 |       ld_x = max(ld_x , a[i][0])
      |                             ^
a.cc:17:20: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   17 |     }else if ( a[i][2]==2){
      |                    ^
a.cc:18:29: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   18 |       ru_x = min(ru_x , a[i][0])
      |                             ^
a.cc:19:20: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   19 |     }else if ( a[i][2]==3){
      |                    ^
a.cc:20:29: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   20 |       ld_y = max(ld_y , a[i][1])
      |                             ^
a.cc:21:20: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   21 |     }else if ( a[i][2]==1){
      |                    ^
a.cc:22:29: error: no match for 'operator[]' (operand types are '__gnu_cxx::__alloc_traits<std::allocator<std::tuple<int, int, int> >, std::tuple<int, int, int> >::value_type' {aka 'std::tuple<int, int, int>'} and 'int')
   22 |       ru_y = min(ru_y , a[i][1])
      |                             ^
Language: C++

10 10 5
1 6 1
4 1 3
6 9 4
9 4 2
3 1 3a#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int w, h, n;
  cin >> w >> h >> n;
  
  vector<vector<int>> a(n, vector<int>(3));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < 3; j++) {
      cin >> a.at(i).at(j);
    }
  }
  
  //残っている白い領域の左下の座標をbに　右上の座標をcに代入
  vector<int> b = {0,0}, c = {w,h};
  for (vector<int> d : a) {
    
    if (d.at(2) == 1) {
      if (d.at(0) > b.at(0)) b.at(0) = d.at(0);
    }
    
    if (d.at(2) == 2) {
      if (d.at(0) < c.at(0)) c.at(0) = d.at(0);
    }
    
    if (d.at(2) == 3) {
      if (d.at(1) > b.at(1)) b.at(1) = d.at(1);
    }
    
    if (d.at(2) == 4) {
      if (d.at(1) < c.at(1)) c.at(1) = d.at(1);
    }
  }
  
  cout << (c.at(0)-b.at(0))*(c.at(1)-b.at(1));
}

Compiler output:
a.cc:6:7: error: stray '#' in program
    6 | 3 1 3a#include <bits/stdc++.h>
      |       ^
a.cc:1:1: error: expected unqualified-id before numeric constant
    1 | 10 10 5
      | ^~
a.cc: In function 'int main()':
a.cc:11:3: error: 'cin' was not declared in this scope
   11 |   cin >> w >> h >> n;
      |   ^~~
a.cc:13:3: error: 'vector' was not declared in this scope
   13 |   vector<vector<int>> a(n, vector<int>(3));
      |   ^~~~~~
a.cc:13:17: error: expected primary-expression before 'int'
   13 |   vector<vector<int>> a(n, vector<int>(3));
      |                 ^~~
a.cc:16:14: error: 'a' was not declared in this scope
   16 |       cin >> a.at(i).at(j);
      |              ^
a.cc:21:10: error: expected primary-expression before 'int'
   21 |   vector<int> b = {0,0}, c = {w,h};
      |          ^~~
a.cc:21:24: error: expected primary-expression before ',' token
   21 |   vector<int> b = {0,0}, c = {w,h};
      |                        ^
a.cc:21:26: error: 'c' was not declared in this scope
   21 |   vector<int> b = {0,0}, c = {w,h};
      |                          ^
a.cc:22:15: error: expected primary-expression before 'int'
   22 |   for (vector<int> d : a) {
      |               ^~~
a.cc:41:3: error: 'cout' was not declared in this scope
   41 |   cout << (c.at(0)-b.at(0))*(c.at(1)-b.at(1));
      |   ^~~~
a.cc:41:20: error: 'b' was not declared in this scope
   41 |   cout << (c.at(0)-b.at(0))*(c.at(1)-b.at(1));
      |                    ^
a.cc:42:1: error: expected primary-expression before '}' token
   42 | }
      | ^
a.cc:41:47: error: expected ')' before '}' token
   41 |   cout << (c.at(0)-b.at(0))*(c.at(1)-b.at(1));
      |                                               ^
      |                                               )
   42 | }
      | ~                                              
a.cc:22:7: note: to match this '('
   22 |   for (vector<int> d : a) {
      |       ^
a.cc:42:1: error: expected primary-expression before '}' token
   42 | }
      | ^
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int w, h, n;
  cin >> w >> h >> n;
  
  vector<vector<int>> a(n, vector<int>(3));
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < 3; j++) {
      cin >> a.at(i).at(j);
    }
  }
  
  //残っている白い領域の左下の座標をbに　右上の座標をcに代入
  vector<int> b = {0,0}, c = {w,h};
  for (vector<int> d : a) {
    
    if (d.at(2) == 1) {
      if (d.at(0) > b.at(0)) b.at(0) = d.at(0);
    }
    
    if (d.at(2) == 2) {
      if (d.at(0) < c.at(0)) c.at(0) = d.at(0);
    }
    
    if (d.at(2) == 3) {
      if (d.at(1) > b.at(1)) b.at(1) = d.at(1);
    }
    
    if (d.at(2) == 4) {
      if (d.at(1) < c.at(1)) c.at(1) = d.at(1);
    }
  }
  
  cout << (c.at(0)-b.at(0))*(c.at(1)-b.at(1))
}

Compiler output:
a.cc: In function 'int main()':
a.cc:36:46: error: expected ';' before '}' token
   36 |   cout << (c.at(0)-b.at(0))*(c.at(1)-b.at(1))
      |                                              ^
      |                                              ;
   37 | }
      | ~
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> A(N);
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    A.at(i)=make_tuple(c,a,b);
  }
  sort(A.begin() , A.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    int c,b, a;
    tie(c,a,b) = A.at(i) ;
    if ( c == 1){
      x_min=mmax(x_min,a);
      continue ;
    }
    if ( c == 2){
      x_max=min(x_max,a);
      continue ;
    }
    if ( c == 3){
      y_min =max(y_min,b);
      continue ;
    }
    if ( c == 4){
      y_max =min(y_max,b);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:19:13: error: 'mmax' was not declared in this scope; did you mean 'fmax'?
   19 |       x_min=mmax(x_min,a);
      |             ^~~~
      |             fmax
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> A(N);
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    A.at(i)=make_tuple(c,a,b);
  }
  sort(A.begin() , A.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    int c,b, a;
    tie(c,a,b) = A.at(i)
    if ( c == 1){
      x_max=max(x_max,a);
      continue ;
    }
    if ( c == 2){
      x_min=min(x_min,a);
      continue ;
    }
    if ( c == 3){
      y_max =max(y_max,b);
      continue ;
    }
    if ( c == 4){
      y_min =min(y_min,b);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:17:25: error: expected ';' before 'if'
   17 |     tie(c,a,b) = A.at(i)
      |                         ^
      |                         ;
   18 |     if ( c == 1){
      |     ~~
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> A(N);
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    A.at(i)=make_tuple(c,a,b);
  }
  sort(A.begin() , A.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    if ( A(i).first == 1){
      x_max=max(x_max,A(i).second);
      continue ;
    }
    if ( A(i).first == 2){
      x_min=min(x_min,A(i).second);
      continue ;
    }
    if ( A(i).first == 3){
      y_max =max(y_max,A(i).third);
      continue ;
    }
    if ( A(i).first == 4){
      y_min =min(y_min,A(i).third);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:16:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   16 |     if ( A(i).first == 1){
      |          ~^~~
a.cc:17:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   17 |       x_max=max(x_max,A(i).second);
      |                       ~^~~
a.cc:20:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   20 |     if ( A(i).first == 2){
      |          ~^~~
a.cc:21:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   21 |       x_min=min(x_min,A(i).second);
      |                       ~^~~
a.cc:24:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   24 |     if ( A(i).first == 3){
      |          ~^~~
a.cc:25:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   25 |       y_max =max(y_max,A(i).third);
      |                        ~^~~
a.cc:28:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   28 |     if ( A(i).first == 4){
      |          ~^~~
a.cc:29:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   29 |       y_min =min(y_min,A(i).third);
      |                        ~^~~
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> A(N);
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    A(i)=tuple(c,a,b);
  }
  sort(A.begin() , A.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    if ( A(i).first == 1){
      x_max=max(x_max,A(i).second);
      continue ;
    }
    if ( A(i).first == 2){
      x_min=min(x_min,A(i).second);
      continue ;
    }
    if ( A(i).first == 3){
      y_max =max(y_max,A(i).third);
      continue ;
    }
    if ( A(i).first == 4){
      y_min =min(y_min,A(i).third);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:6: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   11 |     A(i)=tuple(c,a,b);
      |     ~^~~
a.cc:16:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   16 |     if ( A(i).first == 1){
      |          ~^~~
a.cc:17:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   17 |       x_max=max(x_max,A(i).second);
      |                       ~^~~
a.cc:20:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   20 |     if ( A(i).first == 2){
      |          ~^~~
a.cc:21:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   21 |       x_min=min(x_min,A(i).second);
      |                       ~^~~
a.cc:24:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   24 |     if ( A(i).first == 3){
      |          ~^~~
a.cc:25:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   25 |       y_max =max(y_max,A(i).third);
      |                        ~^~~
a.cc:28:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   28 |     if ( A(i).first == 4){
      |          ~^~~
a.cc:29:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   29 |       y_min =min(y_min,A(i).third);
      |                        ~^~~
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> a(N);
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    a(i)=tuple(c,a,b);
  }
  sort(a.begin() , a.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    if ( a(i).first == 1){
      x_max=max(x_max,a(i).second);
      continue ;
    }
    if ( a(i).first == 2){
      x_min=min(x_min,a(i).second);
      continue ;
    }
    if ( a(i).first == 3){
      y_max =max(y_max,a(i).third);
      continue ;
    }
    if ( a(i).first == 4){
      y_min =min(y_min,a(i).third);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:6: error: 'a' cannot be used as a function
   11 |     a(i)=tuple(c,a,b);
      |     ~^~~
a.cc:16:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   16 |     if ( a(i).first == 1){
      |          ~^~~
a.cc:17:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   17 |       x_max=max(x_max,a(i).second);
      |                       ~^~~
a.cc:20:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   20 |     if ( a(i).first == 2){
      |          ~^~~
a.cc:21:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   21 |       x_min=min(x_min,a(i).second);
      |                       ~^~~
a.cc:24:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   24 |     if ( a(i).first == 3){
      |          ~^~~
a.cc:25:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   25 |       y_max =max(y_max,a(i).third);
      |                        ~^~~
a.cc:28:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   28 |     if ( a(i).first == 4){
      |          ~^~~
a.cc:29:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   29 |       y_min =min(y_min,a(i).third);
      |                        ~^~~
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> a;
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    a.push_back(make_tuple(c,a,b));
  }
  sort(a.begin() , a.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    if ( a(i).first == 1){
      x_max=max(x_max,a(i).second);
      continue ;
    }
    if ( a(i).first == 2){
      x_min=min(x_min,a(i).second);
      continue ;
    }
    if ( a(i).first == 3){
      y_max =max(y_max,a(i).third);
      continue ;
    }
    if ( a(i).first == 4){
      y_min =min(y_min,a(i).third);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: request for member 'push_back' in 'a', which is of non-class type 'int'
   11 |     a.push_back(make_tuple(c,a,b));
      |       ^~~~~~~~~
a.cc:16:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   16 |     if ( a(i).first == 1){
      |          ~^~~
a.cc:17:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   17 |       x_max=max(x_max,a(i).second);
      |                       ~^~~
a.cc:20:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   20 |     if ( a(i).first == 2){
      |          ~^~~
a.cc:21:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   21 |       x_min=min(x_min,a(i).second);
      |                       ~^~~
a.cc:24:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   24 |     if ( a(i).first == 3){
      |          ~^~~
a.cc:25:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   25 |       y_max =max(y_max,a(i).third);
      |                        ~^~~
a.cc:28:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   28 |     if ( a(i).first == 4){
      |          ~^~~
a.cc:29:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   29 |       y_min =min(y_min,a(i).third);
      |                        ~^~~
Language: C++

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

int main() {
  int W ,H , N;
  cin >> W >> H >> N;
  vector <tuple <int , int , int >> a(N);
  for ( int i=0 ; i<N ; i++){
    int a,b,c;
    cin >> a >> b >> c;
    a.at(i) = make_tuple(c,a,b);
  }
  sort(a.begin() , a.end());
  int x_max ,x_min , y_max , y_min;
  for ( int i=0 ; i< N ; i++){
    if ( a(i).first == 1){
      x_max=max(x_max,a(i).second);
      continue ;
    }
    if ( a(i).first == 2){
      x_min=min(x_min,a(i).second);
      continue ;
    }
    if ( a(i).first == 3){
      y_max =max(y_max,a(i).third);
      continue ;
    }
    if ( a(i).first == 4){
      y_min =min(y_min,a(i).third);
    }
  }
  if (x_min<x_max && y_min < y_max){
    cout << (x_max-x_min)*(y_max-y_min) <<endl;
  }else cout << 0 << endl;
}
      
  

Compiler output:
a.cc: In function 'int main()':
a.cc:11:7: error: request for member 'at' in 'a', which is of non-class type 'int'
   11 |     a.at(i) = make_tuple(c,a,b);
      |       ^~
a.cc:16:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   16 |     if ( a(i).first == 1){
      |          ~^~~
a.cc:17:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   17 |       x_max=max(x_max,a(i).second);
      |                       ~^~~
a.cc:20:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   20 |     if ( a(i).first == 2){
      |          ~^~~
a.cc:21:24: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   21 |       x_min=min(x_min,a(i).second);
      |                       ~^~~
a.cc:24:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   24 |     if ( a(i).first == 3){
      |          ~^~~
a.cc:25:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   25 |       y_max =max(y_max,a(i).third);
      |                        ~^~~
a.cc:28:11: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   28 |     if ( a(i).first == 4){
      |          ~^~~
a.cc:29:25: error: no match for call to '(std::vector<std::tuple<int, int, int> >) (int&)'
   29 |       y_min =min(y_min,a(i).third);
      |                        ~^~~
Language: Java

import java.util.Scanner;

public class TaskB {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int w = in.nextInt();
        int h = in.nextInt();
        int x0 = 0, y0 = 0;
        int n = in.nextInt();
        for (int i = 0; i < n; i++) {
            int x1 = in.nextInt();
            int y1 = in.nextInt();
            int a1 = in.nextInt();
            switch (a1) {
                case 1:
                    x0 = Math.max(x0, x1);
                    break;
                case 2:
                    w = Math.min(w, x1);
                    break;
                case 3:
                    y0 = Math.max(y0, y1);
                    break;
                case 4:
                    h = Math.min(h, y1);
                    break;
            }
        }

        int square = Math.max(0, w - x0) * Math.max(0, h - y0);
        System.out.println(square);
    }
}


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

#include <bits/stdc++.h>
#define rep(i , n) for (int i = 0; i < (int)(n); i++)
#define INF 1e9;
using namespace std;
using ll = long long;
#include <bits/stdc++.h>
int main() {
    int W , H , N;
    cin >> W >> H >> N;
    int l = 0 , r = W , u = H , d = 0;
    rep(i , n){
        int x , y , a;
        cin >> x >> y >> a;
        if(a == 1){
            l = max(l , x);
        }
        if(a == 2){
            r = min(r , x);
        }
        if(a == 3){
            d = max(d , x);
        }
        if(a == 4){
            u = min(u , x);
        }   
    }
    cout << max(0 , r - l) * max(0 , u - d) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:11:13: error: 'n' was not declared in this scope
   11 |     rep(i , n){
      |             ^
a.cc:2:46: note: in definition of macro 'rep'
    2 | #define rep(i , n) for (int i = 0; i < (int)(n); i++)
      |                                              ^
Language: C++

#include<iostream>
using namespace std;

int main (){
  int W, H, N;
  cin >> W >> H >> N;
  int x[N];
  int y[N];
  int a[N];
  for (int i = 0; i < N; i ++){
    cin >> x[i] >> y[i] >> a[i];
    if (a == 1){
      W -= x[i];
    } else if (a == 2){
    
    } else if (a == 3){
    
    } else if (a == 4){
      H -= y[i];
    }
  }
  cout << W * H << '\n';
}

Compiler output:
a.cc: In function 'int main()':
a.cc:12:11: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   12 |     if (a == 1){
      |         ~~^~~~
a.cc:14:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   14 |     } else if (a == 2){
      |                ~~^~~~
a.cc:16:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   16 |     } else if (a == 3){
      |                ~~^~~~
a.cc:18:18: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
   18 |     } else if (a == 4){
      |                ~~^~~~
Language: C

int main(void){

  int W,H,N,i,j,k,x[100],y[100],a[100];
  int size=0;
  scanf("%d %d %d",&W,&H,&N);
  int mat[W][H];
  
  for(i=0;i<=N;i++){
  	scanf("%d %d %d",&x[i],&y[i],&a[i]);
  }
  
  for(i=0;i<W;i++){
  	for(j=0;j<H;j++){
    	mat[i][j]=0;//white
    }
  }
  
  for(i=0;i<N;i++){
    if(a[i]==1){
    	for(j=0;j<x[i];j++){
          for(k=0;k<H;k++){
        	mat[j][K]=1;
          }
        }
    }
    else if(a[i]==2){
    	for(j=x[i];j<W;j++){
          for(k=0;k<H;k++){
        	mat[j][K]=1;
          }
    	}
  	}
    else if(a[i]==3){
    	for(j=0;j<W;j++){
          for(k=0;k<y[i];k++){
        	mat[j][K]=1;
          }
        }
    }
    else if(a[i]==4){
    	for(j=0;j<W;j++){
          for(k=y[i];k<H;k++){
        	mat[j][K]=1;
          }
    }
  
  for(i=0;i<W;i++){
  	for(j=0;j<H;j++){
    	if(mat[i][j]==0){
        	size++;
        }
    }
  }
  
  printf("%d",size);
  
  return 0;
}


Compiler output:
main.c: In function 'main':
main.c:5:3: error: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
    5 |   scanf("%d %d %d",&W,&H,&N);
      |   ^~~~~
main.c:1:1: note: include '<stdio.h>' or provide a declaration of 'scanf'
  +++ |+#include <stdio.h>
    1 | int main(void){
main.c:5:3: warning: incompatible implicit declaration of built-in function 'scanf' [-Wbuiltin-declaration-mismatch]
    5 |   scanf("%d %d %d",&W,&H,&N);
      |   ^~~~~
main.c:5:3: note: include '<stdio.h>' or provide a declaration of 'scanf'
main.c:22:24: error: 'K' undeclared (first use in this function)
   22 |                 mat[j][K]=1;
      |                        ^
main.c:22:24: note: each undeclared identifier is reported only once for each function it appears in
main.c:55:3: error: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
   55 |   printf("%d",size);
      |   ^~~~~~
main.c:55:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:55:3: warning: incompatible implicit declaration of built-in function 'printf' [-Wbuiltin-declaration-mismatch]
main.c:55:3: note: include '<stdio.h>' or provide a declaration of 'printf'
main.c:58:1: error: expected declaration or statement at end of input
   58 | }
      | ^
main.c:58:1: error: expected declaration or statement at end of input
Language: C++

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

int main()
{
    int w, h, n;
    cin >> w >> h >> n;
    vector<pair<int, int>> xy(n);
    for (int i = 0; i < n; i++)
    {
        int t1, t2, t3;
        cin >> t1 >> t2 >> t3;
        if (t3 > 2)
            xy[i] = make_pair(t2, t3);
        else
            xy[i] = make_pair(t1, t3);
    }
    int lw = 0, uw = w, lh = 0, uh = h;
    for (auto x : xy)
    {
        if (x.second > 2)
        {
            if (x.second % 2 == 1)
                lh = max(x.first, lh);
            else
                uh = min(x.first, uh);
        }
        else if (x.second % 2 == 1)
            lw = max(x.first, lw);
        else
            uw = min(x.first, uw);
    }
    if ((uw - lw) < 0 || (uh - lh) < 0)
        cout << 0 << endl;
    else
        cout << (uw - lw) * (uh - lh)) << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:37:38: error: expected ';' before ')' token
   37 |         cout << (uw - lw) * (uh - lh)) << endl;
      |                                      ^
      |                                      ;
Language: C++

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

int main() {
	
	int w, h, n; cin >> w >> h >> n;
	int w_right = w;
	int w_left = 0;
	int h_upper = h;
	int h_lower = 0;
	for (int i = 0; i < n; i++) {
		int x, y, a; cin >> x >> y >> a;
		if (a == 1) w_left = max(w_left, x);
		if (a == 2) w_right = min(w_right, x);
		if (a == 3) h_lower = max(h_lower, y);
		if (a == 4) h_upper = min(h_upper, y);
	}
	cout << max(0, w_right - w_left) * maz(0, h_upper - h_lower) << endl;
	return 0;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:19:44: error: 'maz' was not declared in this scope
   19 |         cout << max(0, w_right - w_left) * maz(0, h_upper - h_lower) << endl;
      |                                            ^~~
Language: C++

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

int main() {
  int W, H, N;
  cin >> W >> H >> N;
  vector<vector<bool>>data(H,vector<bool>(W,true));
  for(int i=0;i<N;i++){
    int x, y, a;
    cin >> x >> y >> a;
    if(a==1){
      for(int j=0;j<H;j++){
        for(int k=0;k<x;k++){
          data.at(j).at(k)=false;
        }
      }
    }
    if(a==2){
      for(int j=0;j<H;j++){
        for(int k=x;k<W;k++){
          data.at(j).at(k)=false;
        }
      }
    }
    if(a==3){
      for(int j=0;j<y;j++){
        for(int k=0;k<x;k++){
          data.at(j).at(k)=false;
        }
      }
    }
    if(a==4){
      for(int j=y;j<H;j++){
        for(int k=0;k<x;k++){
          data.at(j).at(k)=false;
        }
      }
    }
  }
  int count=0;
  for(int i=0;i<H;i++){
    for(int j=0;j<W;j++){
      if(data.at(i).at(j)) cuont++;
    }
  }
  cout << count << endl;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:43:28: error: 'cuont' was not declared in this scope; did you mean 'count'?
   43 |       if(data.at(i).at(j)) cuont++;
      |                            ^~~~~
      |                            count
Language: C++

#include <bits/stdc++.h>
using namespace std;
 
int main() {
  int W, H, N;
  cin >> W >> H >> N;
  vector<vector<int>> color(H, vector<int>(W,0));
  int x, y, a;
  int area=0;
  for(int i=0; i<N; i++){
    cin >> x >> y >> a;
    if(a==1){
      for(int j=0; j<x; j++){
        for(int k=0; k<H; k++){
          color.at(k).at(j)=1;
        }
      }
    }else if(a==2){
      for(int j=x; j<W; j++){
        for(int k=0; k<H; k++){
          color.at(k).at(j)=1;
        }
      }
    }else if(a==3){
      for(int j=0; j<W; j++){
        for(int k=0; k<y; k++){
          color.at(k).at(j)=1;
        }
      }
    }else if(a==4){
      for(int j=0; j<W; j++){
        for(int k=y; k<H; k++){
          color.at(k).at(j)=1;
        }
      }
    }else{
      cout << error <<endl;
    }
  }
  for(int j=0; j<W; j++){
    for(int k=0; k<H; k++){
      if(color.at(j).at(k)==1){
        area++;
      }
    }
  }
    
   
}

Compiler output:
a.cc: In function 'int main()':
a.cc:37:15: error: 'error' was not declared in this scope; did you mean 'perror'?
   37 |       cout << error <<endl;
      |               ^~~~~
      |               perror
Language: C++

#include<iostream>
#include<cmath>
#include<numeric>
#include<functional>
#include<string>
#include<algorithm>
#include<vector>
#include<map>
#include<iomanip>
#include<queue>
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define ll long long
#define INF 2147483647
using namespace std;
using Graph=vector<vector<int>>;

int main(){
  int w,h,n; cin>>w>>h>>n;
  int x[n],y[n],a[n];
  int xleft=0,xright=w;
  int ydown=0,yup=h;
  rep(i,n){
    cin>>x[i]>>y[i]>>a[i];
    switch(a[i]){
      case 1;
        xleft=max(xleft,x[i]);
        break;
      case 2:
        xright=min(xright,x[i]);
        break;
      case 3:
        ydown=max(ydown,y[i]);
        break;
      case 4:
        yup=min(yup,y[i]);
    }
  }
  int xrange=max(0,xright-xleft);
  int yrange=max(0,yup-ydown);
  cout<<xrange*yrange;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:26:13: error: expected ':' before ';' token
   26 |       case 1;
      |             ^
      |             :
Language: C++

#include<iostream>
#include<cmath>
#include<numeric>
#include<functional>
#include<string>
#include<algorithm>
#include<vector>
#include<map>
#include<iomanip>
#include<queue>
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<n;i++)
#define ll long long
#define INF 2147483647
using namespace std;
using Graph=vector<vector<int>>;

int main(){
  int w,h,n; cin>>w>>h>>n;
  int x[n],y[n],a[n];
  int xleft=0,xright=w;
  int ydown=0,yup=h;
  dep(i,n){
    cin>>x[i]>>y[i]>>a[i];
    switch(a[i]){
      case 1;
        xleft=max(xleft,x[i]);
        break;
      case 2:
        xright=min(xright,x[i]);
        break;
      case 3:
        ydown=max(ydown,y[i]);
        break;
      case 4:
        yup=min(yup,y[i]);
    }
  }
  int xrange=max(0,xright-xleft);
  int yrange=max(0,yup-ydown);
  cout<<xrange*yrange;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:23:7: error: 'i' was not declared in this scope
   23 |   dep(i,n){
      |       ^
a.cc:23:3: error: 'dep' was not declared in this scope; did you mean 'rep'?
   23 |   dep(i,n){
      |   ^~~
      |   rep
Language: C++

#include<iostream>

using namespace std;

int main(){
  int W, H, N;
  cin >> W >> H >> N;
  int left = 0;
  int right = W;
  int bottom = 0;
  int top = H;
  for(int i=0; i<N; i++){
    int x, y, a;
    cin >> x >> y >> a;
    switch(a){
      case 1:
        left = max(left, x);
      case 2:
        right = min(right, x);
      case 3:
        bottom = max(bottom, y);
      case 4:
        bottom = min(bottom, y);
  }
  if(right-left<0 || top-bottom<0){
    cout << 0 << endl;
  }else{
    cout << (right-left)*(top-bottom) << endl;
  }
  return 0;
}


Compiler output:
a.cc: In function 'int main()':
a.cc:31:2: error: expected '}' at end of input
   31 | }
      |  ^
a.cc:5:11: note: to match this '{'
    5 | int main(){
      |           ^
Language: C++

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

int main() {
    int w,h,n;
    cin >> w >> h >>n;
    vector<vector<int>> mp(h,vector<int>(w,0));
    rep(i,n){
        int x,y,a;
        cin >> x >> y >> a;
        if(a==1){
            rep(j,x-1){
                rep(k,h){
                    mp[h][j]=1;
                }
            }
        } else if(a==2){
            for(int j = x;j<w-1;j++){
                rep(k,h){
                    mp[h][j]=1;
                }
            }
        } else if(a==3){
            rep(j,y-1){
                rep(k,w){
                    mp[j-1][w]=1;
                }
            }
        } else if(a==3){
            for(int j = y;j<h-1;j++){
                rep(k,w){
                    mp[j][w]=1;
                }
            }
        }
    }
    int ans = 0;
    rep(i,w){
        rep(j,h){
            if(mp[j][i]==0) ans++;
        }
    }
    cout << as << endl
}

Compiler output:
a.cc: In function 'int main()':
a.cc:47:13: error: 'as' was not declared in this scope; did you mean 'ans'?
   47 |     cout << as << endl
      |             ^~
      |             ans
Language: C++

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

int main() {
    int w,h,n;
    cin >> w >> h >>n;
    vector<vector<int>> mp(h,vector<int>(x,0));
    rep(i,n){
        int x,y,a;
        cin >> x >> y >> a;
        if(a==1){
            rep(j,x-1){
                rep(k,h){
                    mp[h][j]=1;
                }
            }
        } else if(a==2){
            for(int j = x,j<w-1;j++){
                rep(k,h){
                    mp[h][j]=1;
                }
            }
        } else if(a==3){
            rep(j,y-1){
                rep(k,w){
                    mp[j-1][w]=1;
                }
            }
        } else if(a==3){
            for(int j = y,j<h-1;j++){
                rep(k,w){
                    mp[j][w]=1;
                }
            }
        }
    }
    int ans = 0;
    rep(i,w){
        rep(j,h){
            if(mp[j][i]==0) ans++;
        }
    }
    cout << as << endl
}

Compiler output:
a.cc: In function 'int main()':
a.cc:11:42: error: 'x' was not declared in this scope
   11 |     vector<vector<int>> mp(h,vector<int>(x,0));
      |                                          ^
a.cc:22:28: error: expected ';' before '<' token
   22 |             for(int j = x,j<w-1;j++){
      |                            ^
      |                            ;
a.cc:22:28: error: expected primary-expression before '<' token
a.cc:34:28: error: expected ';' before '<' token
   34 |             for(int j = y,j<h-1;j++){
      |                            ^
      |                            ;
a.cc:34:28: error: expected primary-expression before '<' token
a.cc:47:13: error: 'as' was not declared in this scope; did you mean 'ans'?
   47 |     cout << as << endl
      |             ^~
      |             ans
Language: C++


#include <bits/stdc++.h>
#include <ext/rope>
#define VALHALLA cin.tie(0);ios_base::sync_with_stdio(false);cout<<fixed<<setprecision(13);cerr<<fixed<<setprecision(5);
#define endl "\n"
#define pb push_back
#define all(v) v.begin(),v.end()
#define debug(x) std::cerr << #x << ": " << (x) << '\n';
#define sz(x) (int)x.size()
#define fast(map_name) map_name.reserve(1024);map_name.max_load_factor(0.25);
using namespace std;
using namespace __gnu_cxx;
typedef long long int ll;
typedef pair<int,int> ii;
typedef complex<double> point;
const double epsilon=1e-9;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll mod=1e9+7;
template <typename T> inline  Max(T a, T b) { return (a<b ? b:a);}
template <typename T> inline  Min(T a, T b) { return (a>b ? b:a);}
double dot(point a,point b){ return (conj(a)*b).real() ; }
double cross(point a,point b){ return (conj(a)*b).imag() ; }
double dist(point a, point b){ return abs(a-b); }
struct neal {
static uint64_t splitmix64(uint64_t x)
 {
    x += 0x9e3779b97f4a7c15;
    x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
    x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
    return x ^ (x >> 31);
}
size_t operator()(uint64_t x) const
 {
    static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
    return splitmix64(x + FIXED_RANDOM);
}
};
struct HASH{
  size_t operator()(const pair<int,int>&x)const{
    return (size_t) x.first * 37U + (size_t) x.second;
  }
};
bool isprime(ll n) {
    if (n == 2 || n == 3) return true;
    if (n < 2 || n % 2 == 0 || n % 3 == 0) return false;
    for (ll i = 6; (i - 1) * (i - 1) <= n; i += 6) {
        if (n % (i - 1) == 0 || n % (i + 1) == 0) {
            return false;
        }
    }
    return true;
}
inline ll exp(ll a, ll b, ll mod) {
    ll n = 1;
    ll p = a;
    while (b > 0) {
        if (b % 2 == 1) {
            n *= p;
            n %= mod;
        }
        p *= p;
        p %= mod;
        b /= 2;
    }
    return n;
}

inline bool comp(double a,double b)
{
  return (fabs(a-b)<epsilon);
}
ll gcd(ll u, ll v) {
  ll r;
  while (0 != v) {
    r = u % v; u = v; v = r;
  }
  return u;
}
/*  FUCNTION TEMPLATE ENDS HERE */
int main()
{
   VALHALLA
   int w,h,n;cin>>w>>h>>n;
   int xleft=0,xright=w,ydown=0,yup=h;
   for(int i=0,x,y,a;i<n;++i)
   {
     cin>>x>>y>>a;
     if(a==1)
     {
        xleft=Max(xleft,x);
     }
     else if(a==2)
     {
       xright=Min(xright,x);
     }
     else if(a==3)
     {
        ydown=Max(ydown,y);
     }
     else if(a==4)
     {
       yup=Min(yup,y);
     }
   }
   cout<<Max(0,(xright-xleft)*(yup-ydown))<<endl;
   
}



Compiler output:
a.cc:19:31: error: ISO C++ forbids declaration of 'Max' with no type [-fpermissive]
   19 | template <typename T> inline  Max(T a, T b) { return (a<b ? b:a);}
      |                               ^~~
a.cc:20:31: error: ISO C++ forbids declaration of 'Min' with no type [-fpermissive]
   20 | template <typename T> inline  Min(T a, T b) { return (a>b ? b:a);}
      |                               ^~~
Language: C++


#include <bits/stdc++.h>
#include <ext/rope>
#define VALHALLA cin.tie(0);ios_base::sync_with_stdio(false);cout<<fixed<<setprecision(13);cerr<<fixed<<setprecision(5);
#define endl "\n"
#define pb push_back
#define all(v) v.begin(),v.end()
#define debug(x) std::cerr << #x << ": " << (x) << '\n';
#define sz(x) (int)x.size()
#define fast(map_name) map_name.reserve(1024);map_name.max_load_factor(0.25);
using namespace std;
using namespace __gnu_cxx;
typedef long long int ll;
typedef pair<int,int> ii;
typedef complex<double> point;
const double epsilon=1e-9;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll mod=1e9+7;
/* VARIABLE DECLARATION START */
int globe[int(1e6)];
/*  FUCNTION TEMPLATE STARTS  HERE */
template <typename T> inline  Max(T a, T b) { return (a<b ? b:a);}
template <typename T> inline  Min(T a, T b) { return (a>b ? b:a);}
double dot(point a,point b){ return (conj(a)*b).real() ; }
double cross(point a,point b){ return (conj(a)*b).imag() ; }
double dist(point a, point b){ return abs(a-b); }
struct neal {
static uint64_t splitmix64(uint64_t x)
 {
    x += 0x9e3779b97f4a7c15;
    x = (x ^ (x >> 30)) * 0xbf58476d1ce4e5b9;
    x = (x ^ (x >> 27)) * 0x94d049bb133111eb;
    return x ^ (x >> 31);
}
size_t operator()(uint64_t x) const
 {
    static const uint64_t FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();
    return splitmix64(x + FIXED_RANDOM);
}
};
struct HASH{
  size_t operator()(const pair<int,int>&x)const{
    return (size_t) x.first * 37U + (size_t) x.second;
  }
};
bool isprime(ll n) {
    if (n == 2 || n == 3) return true;
    if (n < 2 || n % 2 == 0 || n % 3 == 0) return false;
    for (ll i = 6; (i - 1) * (i - 1) <= n; i += 6) {
        if (n % (i - 1) == 0 || n % (i + 1) == 0) {
            return false;
        }
    }
    return true;
}
inline ll exp(ll a, ll b, ll mod) {
    ll n = 1;
    ll p = a;
    while (b > 0) {
        if (b % 2 == 1) {
            n *= p;
            n %= mod;
        }
        p *= p;
        p %= mod;
        b /= 2;
    }
    return n;
}

inline bool comp(double a,double b)
{
  return (fabs(a-b)<epsilon);
}
ll gcd(ll u, ll v) {
  ll r;
  while (0 != v) {
    r = u % v; u = v; v = r;
  }
  return u;
}
/*  FUCNTION TEMPLATE ENDS HERE */
int main()
{
   VALHALLA
   int w,h,n;cin>>w>>h>>n;
   int xleft=0,xright=w,ydown=0,yup=h;
   for(int i=0,x,y,a;i<n;++i)
   {
     cin>>x>>y>>a;
     if(a==1)
     {
        xleft=Max(xleft,x);
     }
     else if(a==2)
     {
       xright=Min(xright,x);
     }
     else if(a==3)
     {
        ydown=Max(ydown,y);
     }
     else if(a==4)
     {
       yup=Min(yup,y);
     }
   }
   cout<<Max(0,(xright-xleft)*(yup-ydown))<<endl;
   
}



Compiler output:
a.cc:22:31: error: ISO C++ forbids declaration of 'Max' with no type [-fpermissive]
   22 | template <typename T> inline  Max(T a, T b) { return (a<b ? b:a);}
      |                               ^~~
a.cc:23:31: error: ISO C++ forbids declaration of 'Min' with no type [-fpermissive]
   23 | template <typename T> inline  Min(T a, T b) { return (a>b ? b:a);}
      |                               ^~~
Language: C++

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

using tiii = tuple<int,int,int>;

int main(){
  int W, H ,N;
  cin >> W >> H >> N;
  tiii T;
  vector<tiii>A(110);
  
  for(int i =0; i <N; i++){
    cin >> get<0>(A[i]) >> get<1>(A[i]) >> get<2>(A[i]);
  }
  //tuple<x座標，ｙ座標，a>
  int colored_H ,colored_W= 0; //塗り潰されたHとW
  int colored_H2,colored_W2= 0;//塗り潰されたHとW(座標(H,W)側からの距離)
  
  for(int i=0; i <N; i++){
    if(get<2>(A[i]) == 1 && colored_W < get<0>(A[i])){ //a == 1のとき，左側を塗りつぶす.すでに塗り潰されていれば無視
      colored_W = get<0>(A[i]);
    }
    else if(get<2>(A[i]) == 2 && colored_W2 < (W - get<0>(A[i]) ) ){
      colored_W2 = W - get<0>(A[i]);
    }
    else if(get<2>(A[i]) == 3 && colored_H < get<1>(A[i]) ){
      colored_H = get<1>(A[i]);
    }
    //↓問題のコード
    else if(get<2>(A[i]) == 4 && colored_H2 < (H - get<1>(A[i]) ) ){
      colored_H2 = H - get<1>(A[i]);
     　//この一行を入れるとなぜか正しく動作する
      //ここで出力しない場合，なぜかここでcoloredH2が変更されない
     
      //↑問題のコード　
    }

  }
  
  H -= colored_H + colored_H2;
  W -= colored_W + colored_W2;
  if(H < 0) H = 0;
  if(W < 0) W = 0;
  cout << H * W << endl;
  
  
  
}


Compiler output:
a.cc:32:6: error: extended character 　 is not valid in an identifier
   32 |      　//この一行を入れるとなぜか正しく動作する
      |      ^
a.cc: In function 'int main()':
a.cc:32:6: error: '\U00003000' was not declared in this scope
   32 |      　//この一行を入れるとなぜか正しく動作する
      |      ^~
Language: Java

import java.util.*;
public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    // 整数の入力
    int W = sc.nextInt();
    int H = sc.nextInt();
    int N = sc.nextInt();
    // 要素数Nの配列x,yと整数aの定義
    int[] x = int[](N);
    int[] y = int[](N);
   	int a;
    // 白い部分の4隅の座標を定義
    int Xr = 0;
    int Xh = W;
    int Yr = 0;
    int Yh = H;
    // N回操作後の白い部分の4隅の座標を代入
    for (int i=1; i<=N; i++) {
      x[i] = sc.nextInt();
      y[i] = sc.nextInt();
      a = sc.nextInt();
      if (a==1) {
        if (x[i]>Xr) {
          Xr = x[i];
        }
      } else if (a==2) {
        if (x[i]<Xh) {
          Xh = x[i];
        }
      } else if (a==3) {
        if (y[i]>Yr) {
          Yr = y[i];
        }
      } else if (a==4) {
        if (y[i]<Yh) {
          Yh = y[i];
        }
      }
    }
    // 面積の出力
    System.out.println((Xh - Xr) * (Yh - Yr));
  }
}
    
      

Compiler output:
Main.java:10: error: '.class' expected
    int[] x = int[](N);
                   ^
Main.java:10: error: not a statement
    int[] x = int[](N);
                    ^
Main.java:10: error: ';' expected
    int[] x = int[](N);
                     ^
Main.java:11: error: '.class' expected
    int[] y = int[](N);
                   ^
Main.java:11: error: not a statement
    int[] y = int[](N);
                    ^
Main.java:11: error: ';' expected
    int[] y = int[](N);
                     ^
6 errors
Language: C++

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

int main(){
  double w,h,n,a,b,c;
  cin>>w>>h>>n;
  double xl,xr,yu,yd;
  xl=0;
  xr=w;
  yu=h;
  yd=0;

  for(int i=0;i<n;i++){
    cin>>a>>b>>c;
    if(c==1 and xl<a){
      xl=a;
    } 
    else if(c==2 and xr>a){
      xr=a;
    }
    else if(c==3 and yb<b){
      yd=b;
    }
    else if(c==4 and yb>b){
      yu=b;
    }
    
    if((xr-xl)<=0 or (yu-yd)<=0){
		cout<<0;
     	break;
    }
  }
  if((xr-xl)>0 and (yu-yd)>0){
    cout<<(xr-xl)*(yu-yd);
  }
  
  
}


Compiler output:
a.cc: In function 'int main()':
a.cc:22:22: error: 'yb' was not declared in this scope; did you mean 'yd'?
   22 |     else if(c==3 and yb<b){
      |                      ^~
      |                      yd
Language: C++

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

int main(){
  double w,h,n,a,b,c;
  cin>>w>>h>>n;
  double xl,xr,yu,yd;
  xl=0;
  xr=w;
  yu=h;
  yd=0;

  for(int i=0;i<n;i++){
    cin>>a>>b>>c;
    if(c==1){
      xl=a;
    } 
    else if(c==2){
      xr=a;
    }
    else if(c==3){
      yd=b;
    }
    else if(c==4){
      yu=b;
    }
    if((xr-xl)<=0 or (yu-yd)<=0) {
    cout<<0;
      break;
    }
  }
  }
  if((xr-xl)>0 and (yu-yd)>0){
    cout<<(xr-xl)*(yu-yd);
  }
  
  
}


Compiler output:
a.cc:34:3: error: expected unqualified-id before 'if'
   34 |   if((xr-xl)>0 and (yu-yd)>0){
      |   ^~
a.cc:39:1: error: expected declaration before '}' token
   39 | }
      | ^
Language: C++

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

int main(){
  int w,h,n,a,b,c;
  cin>>w>>h>>n;
  int xl,xr,yu,yd;
  xl=0;
  xr=w;
  yu=h;
  yd=0;

  for(int i=0;i<n;i++){
    cin>>a>>b>>c;
    if(c==1){
      xl=a;
    } 
    else if(c==2){
      xr=a;
    }
    else if(c==3){
      yd=b;
    }
    else if(c==4){
      yu=d;
    }
  }
  cout<<(xr-xl)*(yu-yd);
  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:10: error: 'd' was not declared in this scope
   26 |       yu=d;
      |          ^
Language: C++

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

int main(){
  int w,h,n,a,b,c;
  cin>>w>>h>>n;
  int xl,xr,yu,yd;
  xl=0;
  xr=w;
  yu=h;
  yd=0;

  for(int i=0;i<n;i++){
    cin>>a>>b>>c;
    if(c==1){
      xl=a;
    } 
    else if(c==2){
      xr=a;
    }
    else if(c==3){
      yd=b;
    }
    else if(c==4){
      yu=d;
    }
  }
  cout<<(xr-xl)*(yu*yd);
  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:10: error: 'd' was not declared in this scope
   26 |       yu=d;
      |          ^
Language: C++

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

int main(){
  int w,h,n,a,b,c;
  cin>>w>>h>>n;
  int xl,xr,yu,yd;
  xl=0;
  xr=w;
  yu=h;
  yd=0;

  for(int i=0;i<n;i++){
    cin>>a>>b>>c;
    if(c==1){
      xl=a;
    } 
    else if(c==2){
      xr=a;
    }
    else if(c==3){
      yd=b;
    }
    else if(c==4){
      yu=d;
    }
  }
  cout<<(xr-xl)*(yu0yd);
  
  
}

Compiler output:
a.cc: In function 'int main()':
a.cc:26:10: error: 'd' was not declared in this scope
   26 |       yu=d;
      |          ^
a.cc:29:18: error: 'yu0yd' was not declared in this scope
   29 |   cout<<(xr-xl)*(yu0yd);
      |                  ^~~~~