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View Compilation Error

0_0_32198605_27477.cpp: In function 'int main()':
0_0_32198605_27477.cpp:63:12: error: 'cin' was not declared in this scope
     while (cin >> ch)
            ^
0_0_32198605_27477.cpp:63:12: note: suggested alternative:
In file included from 0_0_32198605_27477.cpp:4:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:60:18: note:   'std::cin'
   extern istream cin;  /// Linked to standard input
                  ^
0_0_32198605_27477.cpp:72:19: error: 'struct NUM' has no member named 'x'
    problem[count].x = 1;
                   ^
0_0_32198605_27477.cpp:73:19: error: 'struct NUM' has no member named 'y'
    problem[count].y = 1;
                   ^
0_0_32198605_27477.cpp:86:21: error: 'struct NUM' has no member named 'x'
      problem[count].x = i;
                     ^
0_0_32198605_27477.cpp:87:21: error: 'struct NUM' has no member named 'y'
      problem[count].y = j;
                     ^
0_0_32198605_27477.cpp:92:15: error: 'cout' was not declared in this scope
   if (flag1++)cout << endl;
               ^
0_0_32198605_27477.cpp:92:15: note: suggested alternative:
In file included from 0_0_32198605_27477.cpp:4:0:
GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:61:18: note:   'std::cout'
   extern ostream cout;  /// Linked to standard output
                  ^
0_0_32198605_27477.cpp:92:23: error: 'endl' was not declared in this scope
   if (flag1++)cout << endl;
                       ^
0_0_32198605_27477.cpp:92:23: note: suggested alternative:
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39:0,
                 from 0_0_32198605_27477.cpp:4:
GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:564:5: note:   'std::endl'
     endl(basic_ostream<_CharT, _Traits>& __os)
     ^


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