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View Compilation Error

0_0_39865914_31807.cpp:2:6: error: expected constructor, destructor, or type conversion before numeric constant
    2 | HDOJ 1000 A+B Problem
      |      ^~~~
In file included from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/exception_ptr.h:38,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/exception:164,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ios:41,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ostream:40,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/iostream:41,
                 from 0_0_39865914_31807.cpp:7:
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:126:26: error: declaration of 'operator new' as non-function
  126 | _GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:126:44: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  126 | _GLIBCXX_NODISCARD void* operator new(std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                                            ^~~~~~
In file included from gcc-13.1.0/x86_64-w64-mingw32/include/wchar.h:9,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/cwchar:44,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/bits/postypes.h:40,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/iosfwd:42,
                 from gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/ios:40:
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:127:41: error: attributes after parenthesized initializer ignored [-fpermissive]
  127 |   __attribute__((__externally_visible__));
      |                                         ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:128:26: error: declaration of 'operator new []' as non-function
  128 | _GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:128:46: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  128 | _GLIBCXX_NODISCARD void* operator new[](std::size_t) _GLIBCXX_THROW (std::bad_alloc)
      |                                              ^~~~~~
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:129:41: error: attributes after parenthesized initializer ignored [-fpermissive]
  129 |   __attribute__((__externally_visible__));
      |                                         ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:135:29: error: 'std::size_t' has not been declared
  135 | void operator delete(void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
      |                             ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:137:31: error: 'std::size_t' has not been declared
  137 | void operator delete[](void*, std::size_t) _GLIBCXX_USE_NOEXCEPT
      |                               ^~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:140:26: error: declaration of 'operator new' as non-function
  140 | _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:140:44: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  140 | _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                            ^~~~~~
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:140:52: error: expected primary-expression before 'const'
  140 | _GLIBCXX_NODISCARD void* operator new(std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                                    ^~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:142:26: error: declaration of 'operator new []' as non-function
  142 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:142:46: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  142 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                              ^~~~~~
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:142:54: error: expected primary-expression before 'const'
  142 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, const std::nothrow_t&) _GLIBCXX_USE_NOEXCEPT
      |                                                      ^~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:149:26: error: declaration of 'operator new' as non-function
  149 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t)
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:149:44: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  149 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t)
      |                                            ^~~~~~
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:149:68: error: expected primary-expression before ')' token
  149 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t)
      |                                                                    ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:150:73: error: attributes after parenthesized initializer ignored [-fpermissive]
  150 |   __attribute__((__externally_visible__, __alloc_size__ (1), __malloc__));
      |                                                                         ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:151:26: error: declaration of 'operator new' as non-function
  151 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:151:44: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  151 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
      |                                            ^~~~~~
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:151:68: error: expected primary-expression before ',' token
  151 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
      |                                                                    ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:151:70: error: expected primary-expression before 'const'
  151 | _GLIBCXX_NODISCARD void* operator new(std::size_t, std::align_val_t, const std::nothrow_t&)
      |                                                                      ^~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:157:26: error: declaration of 'operator new []' as non-function
  157 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t)
      |                          ^~~~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:157:46: error: 'size_t' is not a member of 'std'; did you mean 'size_t'?
  157 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t)
      |                                              ^~~~~~
gcc-13.1.0/x86_64-w64-mingw32/include/corecrt.h:35:44: note: 'size_t' declared here
   35 | __MINGW_EXTENSION typedef unsigned __int64 size_t;
      |                                            ^~~~~~
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:157:70: error: expected primary-expression before ')' token
  157 | _GLIBCXX_NODISCARD void* operator new[](std::size_t, std::align_val_t)
      |                                                                      ^
gcc-13.1.0/lib/gcc/x86_64-w64-mingw32/13.1.0/include/c++/new:158:73: error: attributes after parenthesized initializer ignored [-fpermissive]
  158 |   __attribute__((__externally_visible__


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