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View Compilation Error

0_0_30079560_18932.cpp: In member function 'bool MCMF::augment()':
0_0_30079560_18932.cpp:61:58: error: wrong number of template arguments (0, should be 1)
   std::priority_queue<pii, std::vector<pii>, std::greater<>> q;
                                                          ^
In file included from GCC4.9.2/x86_64-w64-mingw32/include/c++/string:48:0,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/locale_classes.h:40,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/ios_base.h:41,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ios:42,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/ostream:38,
                 from GCC4.9.2/x86_64-w64-mingw32/include/c++/iostream:39,
                 from 0_0_30079560_18932.cpp:1:
GCC4.9.2/x86_64-w64-mingw32/include/c++/bits/stl_function.h:358:12: error: provided for 'template<class _Tp> struct std::greater'
     struct greater : public binary_function<_Tp, _Tp, bool>
            ^
0_0_30079560_18932.cpp:61:59: error: template argument 3 is invalid
   std::priority_queue<pii, std::vector<pii>, std::greater<>> q;
                                                           ^
0_0_30079560_18932.cpp:61:63: error: invalid type in declaration before ';' token
   std::priority_queue<pii, std::vector<pii>, std::greater<>> q;
                                                               ^
0_0_30079560_18932.cpp:63:5: error: request for member 'push' in 'q', which is of non-class type 'int'
   q.push({ dist[T] = 0, T });
     ^
0_0_30079560_18932.cpp:64:13: error: request for member 'empty' in 'q', which is of non-class type 'int'
   while (!q.empty()) {
             ^
0_0_30079560_18932.cpp:65:14: error: request for member 'top' in 'q', which is of non-class type 'int'
    pii x = q.top();
              ^
0_0_30079560_18932.cpp:66:6: error: request for member 'pop' in 'q', which is of non-class type 'int'
    q.pop();
      ^
0_0_30079560_18932.cpp:72:8: error: request for member 'push' in 'q', which is of non-class type 'int'
      q.push({ dist[v] = dt, v });
        ^


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