Language: C++

#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using VI = vector<int>;
using VL = vector<ll>;
#define FOR(i,a,n) for(int (i)=(a);(i)<(n);++(i))
#define eFOR(i,a,n) for(int (i)=(a);(i)<=(n);++(i))
#define rFOR(i,a,n) for(int (i)=(n)-1;(i)>=(a);--(i))
#define erFOR(i,a,n) for(int (i)=(n);(i)>=(a);--(i))
#define SORT(i) sort((i).begin(),(i).end())
#define rSORT(i,a) sort((i).begin(),(i).end(),(a))
#define all(i) (i).begin(),(i).end()
#define out(y,x) ((y) < 0 || h <= (y) || (x) < 0 || w <= (x))
#define line cout << "------------------------\n" 
#define ENDL(i,n) ((i) == (n) - 1 ? "\n" : " ")
#define stop system("pause")
constexpr ll INF = 1000000000;
constexpr ll LLINF = 1LL << 60;
constexpr ll mod = 1000000007;
constexpr ll MOD = 998244353;
const long double pi = acos(-1);
const long double eps = 1e-10;
template<class T>inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; }return 0; }
template<class T>inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; }return 0; }
inline void init() { cin.tie(nullptr); cout.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(15); }
template<class T>inline istream& operator>>(istream& is, vector<T>& v) { for (auto& elemnt : v)is >> elemnt; return is; }
template<class T, class U>inline istream& operator>>(istream& is, pair<T, U>& p) { is >> p.first >> p.second; return is; }
template<class T>inline vector<T> vec(size_t a) { return vector<T>(a); }
template<class T>inline vector<T> defvec(T def, size_t a) { return vector<T>(a, def); }
template<class T, class... Ts>inline auto vec(size_t a, Ts... ts) { return vector<decltype(vec<T>(ts...))>(a, vec<T>(ts...)); }
template<class T, class... Ts>inline auto defvec(T def, size_t a, Ts... ts) { return vector<decltype(defvec<T>(def, ts...))>(a, defvec<T>(def, ts...)); }

int main() {
    init();

    int h, w; cin >> h >> w;
    auto a = vec<ll>(h, w), b = a; 
    cin >> a >> b;

    auto cost = a;
    FOR(i, 0, h)FOR(j, 0, w)cost[i][j] = abs(a[i][j] - b[i][j]);
    
    auto dp = vec<bool>(h + 1, w + 1, 80 * (h + w));
    dp[0][0][cost[0][0]] = true;
    FOR(i, 0, h)FOR(j, 0, w)FOR(k, 0, 80 * (h + w)) {
        bool now = dp[i][j][k];
        dp[i + 1][j][k + cost[i + 1][j]] |= now
        dp[i + 1][j][abs(k - cost[i + 1][j])] |= now
        dp[i][j + 1][k + cost[i][j + 1]] |= now;
        dp[i][j + 1][abs(k - cost[i][j + 1])] |= now
    }

    FOR(i, 0, 80 * (h + w))if (dp[h - 1][w - 1][i]) {
        cout << i << "\n";
        return 0;
    }
}


Compiler output:
a.cc: In function 'int main()':
a.cc:47:42: error: no match for 'operator|=' (operand types are 'std::vector<bool, std::allocator<bool> >::reference' and 'bool')
   47 |         dp[i + 1][j][k + cost[i + 1][j]] |= now
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:41,
                 from a.cc:1:
/usr/include/c++/14/cstddef:168:3: note: candidate: 'constexpr std::byte& std::operator|=(byte&, byte)'
  168 |   operator|=(byte& __l, byte __r) noexcept
      |   ^~~~~~~~
/usr/include/c++/14/cstddef:168:20: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::byte&'
  168 |   operator|=(byte& __l, byte __r) noexcept
      |              ~~~~~~^~~
In file included from /usr/include/c++/14/streambuf:43,
                 from /usr/include/c++/14/bits/streambuf_iterator.h:35,
                 from /usr/include/c++/14/iterator:66,
                 from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:54:
/usr/include/c++/14/bits/ios_base.h:104:3: note: candidate: 'constexpr const std::_Ios_Fmtflags& std::operator|=(_Ios_Fmtflags&, _Ios_Fmtflags)'
  104 |   operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) _GLIBCXX_NOTHROW
      |   ^~~~~~~~
/usr/include/c++/14/bits/ios_base.h:104:29: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::_Ios_Fmtflags&'
  104 |   operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) _GLIBCXX_NOTHROW
      |              ~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/ios_base.h:154:3: note: candidate: 'constexpr const std::_Ios_Openmode& std::operator|=(_Ios_Openmode&, _Ios_Openmode)'
  154 |   operator|=(_Ios_Openmode& __a, _Ios_Openmode __b) _GLIBCXX_NOTHROW
      |   ^~~~~~~~
/usr/include/c++/14/bits/ios_base.h:154:29: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::_Ios_Openmode&'
  154 |   operator|=(_Ios_Openmode& __a, _Ios_Openmode __b) _GLIBCXX_NOTHROW
      |              ~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/ios_base.h:201:3: note: candidate: 'constexpr const std::_Ios_Iostate& std::operator|=(_Ios_Iostate&, _Ios_Iostate)'
  201 |   operator|=(_Ios_Iostate& __a, _Ios_Iostate __b) _GLIBCXX_NOTHROW
      |   ^~~~~~~~
/usr/include/c++/14/bits/ios_base.h:201:28: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::_Ios_Iostate&'
  201 |   operator|=(_Ios_Iostate& __a, _Ios_Iostate __b) _GLIBCXX_NOTHROW
      |              ~~~~~~~~~~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:176:
/usr/include/c++/14/future:185:18: note: candidate: 'constexpr std::launch& std::operator|=(launch&, launch)'
  185 |   inline launch& operator|=(launch& __x, launch __y) noexcept
      |                  ^~~~~~~~
/usr/include/c++/14/future:185:37: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::launch&'
  185 |   inline launch& operator|=(launch& __x, launch __y) noexcept
      |                             ~~~~~~~~^~~
In file included from /usr/include/x86_64-linux-gnu/c++/14/bits/stdc++.h:198:
/usr/include/c++/14/charconv:646:3: note: candidate: 'constexpr std::chars_format& std::operator|=(chars_format&, chars_format)'
  646 |   operator|=(chars_format& __lhs, chars_format __rhs) noexcept
      |   ^~~~~~~~
/usr/include/c++/14/charconv:646:28: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::chars_format&'
  646 |   operator|=(chars_format& __lhs, chars_format __rhs) noexcept
      |              ~~~~~~~~~~~~~~^~~~~
a.cc:50:47: error: no match for 'operator|=' (operand types are 'std::vector<bool, std::allocator<bool> >::reference' and 'bool')
   50 |         dp[i][j + 1][abs(k - cost[i][j + 1])] |= now
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
/usr/include/c++/14/cstddef:168:3: note: candidate: 'constexpr std::byte& std::operator|=(byte&, byte)'
  168 |   operator|=(byte& __l, byte __r) noexcept
      |   ^~~~~~~~
/usr/include/c++/14/cstddef:168:20: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::byte&'
  168 |   operator|=(byte& __l, byte __r) noexcept
      |              ~~~~~~^~~
/usr/include/c++/14/bits/ios_base.h:104:3: note: candidate: 'constexpr const std::_Ios_Fmtflags& std::operator|=(_Ios_Fmtflags&, _Ios_Fmtflags)'
  104 |   operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) _GLIBCXX_NOTHROW
      |   ^~~~~~~~
/usr/include/c++/14/bits/ios_base.h:104:29: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::_Ios_Fmtflags&'
  104 |   operator|=(_Ios_Fmtflags& __a, _Ios_Fmtflags __b) _GLIBCXX_NOTHROW
      |              ~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/ios_base.h:154:3: note: candidate: 'constexpr const std::_Ios_Openmode& std::operator|=(_Ios_Openmode&, _Ios_Openmode)'
  154 |   operator|=(_Ios_Openmode& __a, _Ios_Openmode __b) _GLIBCXX_NOTHROW
      |   ^~~~~~~~
/usr/include/c++/14/bits/ios_base.h:154:29: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::_Ios_Openmode&'
  154 |   operator|=(_Ios_Openmode& __a, _Ios_Openmode __b) _GLIBCXX_NOTHROW
      |              ~~~~~~~~~~~~~~~^~~
/usr/include/c++/14/bits/ios_base.h:201:3: note: candidate: 'constexpr const std::_Ios_Iostate& std::operator|=(_Ios_Iostate&, _Ios_Iostate)'
  201 |   operator|=(_Ios_Iostate& __a, _Ios_Iostate __b) _GLIBCXX_NOTHROW
      |   ^~~~~~~~
/usr/include/c++/14/bits/ios_base.h:201:28: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::_Ios_Iostate&'
  201 |   operator|=(_Ios_Iostate& __a, _Ios_Iostate __b) _GLIBCXX_NOTHROW
      |              ~~~~~~~~~~~~~~^~~
/usr/include/c++/14/future:185:18: note: candidate: 'constexpr std::launch& std::operator|=(launch&, launch)'
  185 |   inline launch& operator|=(launch& __x, launch __y) noexcept
      |                  ^~~~~~~~
/usr/include/c++/14/future:185:37: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::launch&'
  185 |   inline launch& operator|=(launch& __x, launch __y) noexcept
      |                             ~~~~~~~~^~~
/usr/include/c++/14/charconv:646:3: note: candidate: 'constexpr std::chars_format& std::operator|=(chars_format&, chars_format)'
  646 |   operator|=(chars_format& __lhs, chars_format __rhs) noexcept
      |   ^~~~~~~~
/usr/include/c++/14/charconv:646:28: note:   no known conversion for argument 1 from 'std::vector<bool, std::allocator<bool> >::reference' to 'std::chars_format&'
  646 |   operator|=(chars_format& __lhs, chars_format __rhs) noexcept
      |              ~~~~~~~~~~~~~~^~~~~