Language: C++

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

typedef long long  ll;

ll MOD = 1000000007;
ll INF = 100000000000000;
double PI = 3.1415926535;

template<typename T>
void remove(std::vector<T>& vector, unsigned int index)
{
    vector.erase(vector.begin() + index);
}

using Graph = vector<vector<pair<ll,ll>>>;

int H,W;
int table[510][510];
int dy[4]{-1,0,1,0};
int dx[4]{0,-1,0,1};

int main(){
  cin >> H >> W;
  for(int i = 0;i < H;i++){
    for(int j = 0;j < W;j++){
      cin >> table[i][j];
    }
  }
  vector<tuple<int,int,int,int>> ans;
  int cnt = 0;
  for(int i = 0;i < H;i++){
    for(int j = 0;j < W;j++){
      for(int k = 0;k < 4;k++){
        int ny = i + dy[k],nx = j + dx[k];
        if(0 <= ny && ny < H && 0 <= nx && nx < W){
          if(table[i][j] % 2 == 1){
            if(table[ny][nx] % 2 == 1){
              table[ny][nx]++;
              table[i][j]--;
              ans.push_back(make_tuple(i+1,j+1,ny+1,nx+1));
              cnt++;
            }
          }
        }
      }
    }
  }
  for(int i = 0;i < cnt;i++){
    cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
  }
  cout << endl;
}

Compiler output:
a.cc: In function 'int main()':
a.cc:50:77: warning: left shift count >= width of type [-Wshift-count-overflow]
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                       ~~~~~~~~~~~~~~~~~~~~~~^~~~~~
a.cc:50:53: error: no match for 'operator<' (operand types are 'std::basic_ostream<char>' and 'int')
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                   |                                                |
      |                                   std::basic_ostream<char>                         int
a.cc:50:53: note: candidate: 'operator<(int, int)' (built-in)
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cc:50:53: note:   no known conversion for argument 1 from 'std::basic_ostream<char>' to 'int'
In file included from /usr/include/c++/14/regex:68,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:181,
                 from a.cc:1:
/usr/include/c++/14/bits/regex.h:1143:5: note: candidate: 'template<class _BiIter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const sub_match<_BiIter>&)'
 1143 |     operator<(const sub_match<_BiIter>& __lhs, const sub_match<_BiIter>& __rhs)
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1143:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/regex.h:1224:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&, const sub_match<_BiIter>&)'
 1224 |     operator<(const __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1224:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'std::__cxx11::__sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/regex.h:1317:5: note: candidate: 'template<class _Bi_iter, class _Ch_traits, class _Ch_alloc> bool std::__cxx11::operator<(const sub_match<_BiIter>&, __sub_match_string<_Bi_iter, _Ch_traits, _Ch_alloc>&)'
 1317 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1317:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/regex.h:1391:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type*, const sub_match<_BiIter>&)'
 1391 |     operator<(typename iterator_traits<_Bi_iter>::value_type const* __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1391:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/regex.h:1485:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type*)'
 1485 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1485:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/regex.h:1560:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const typename std::iterator_traits<_Iter>::value_type&, const sub_match<_BiIter>&)'
 1560 |     operator<(typename iterator_traits<_Bi_iter>::value_type const& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1560:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   mismatched types 'const std::__cxx11::sub_match<_BiIter>' and 'int'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/regex.h:1660:5: note: candidate: 'template<class _Bi_iter> bool std::__cxx11::operator<(const sub_match<_BiIter>&, const typename std::iterator_traits<_Iter>::value_type&)'
 1660 |     operator<(const sub_match<_Bi_iter>& __lhs,
      |     ^~~~~~~~
/usr/include/c++/14/bits/regex.h:1660:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::__cxx11::sub_match<_BiIter>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:64,
                 from /usr/include/c++/14/algorithm:60,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:51:
/usr/include/c++/14/bits/stl_pair.h:1045:5: note: candidate: 'template<class _T1, class _T2> constexpr bool std::operator<(const pair<_T1, _T2>&, const pair<_T1, _T2>&)'
 1045 |     operator<(const pair<_T1, _T2>& __x, const pair<_T1, _T2>& __y)
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_pair.h:1045:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::pair<_T1, _T2>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
In file included from /usr/include/c++/14/bits/stl_algobase.h:67:
/usr/include/c++/14/bits/stl_iterator.h:448:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const reverse_iterator<_Iterator>&, const reverse_iterator<_Iterator>&)'
  448 |     operator<(const reverse_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:448:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/stl_iterator.h:493:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const reverse_iterator<_Iterator>&, const reverse_iterator<_IteratorR>&)'
  493 |     operator<(const reverse_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:493:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::reverse_iterator<_Iterator>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/stl_iterator.h:1694:5: note: candidate: 'template<class _IteratorL, class _IteratorR> constexpr bool std::operator<(const move_iterator<_IteratorL>&, const move_iterator<_IteratorR>&)'
 1694 |     operator<(const move_iterator<_IteratorL>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1694:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
/usr/include/c++/14/bits/stl_iterator.h:1760:5: note: candidate: 'template<class _Iterator> constexpr bool std::operator<(const move_iterator<_IteratorL>&, const move_iterator<_IteratorL>&)'
 1760 |     operator<(const move_iterator<_Iterator>& __x,
      |     ^~~~~~~~
/usr/include/c++/14/bits/stl_iterator.h:1760:5: note:   template argument deduction/substitution failed:
a.cc:50:100: note:   'std::basic_ostream<char>' is not derived from 'const std::move_iterator<_IteratorL>'
   50 |     cout << get<0>(ans[i]) << ' ' << get<1>(ans[i]) < ' ' << get<2>(ans[i]) << ' ' << get<3>(ans[i]);
      |                                                                                                    ^
In file included from /usr/