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View Compilation Error

0_0_37771643_17409.cpp: In function 'void dij1(int)':
0_0_37771643_17409.cpp:52:43: error: wrong number of template arguments (0, should be 1)
     priority_queue<P, vector<P >, 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_37771643_17409.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_37771643_17409.cpp:52:45: error: template argument 3 is invalid
     priority_queue<P, vector<P >, greater<> > q;
                                             ^
0_0_37771643_17409.cpp:52:48: error: invalid type in declaration before ';' token
     priority_queue<P, vector<P >, greater<> > q;
                                                ^
0_0_37771643_17409.cpp:54:7: error: request for member 'push' in 'q', which is of non-class type 'int'
     q.push({0, s});
       ^
0_0_37771643_17409.cpp:55:15: error: request for member 'empty' in 'q', which is of non-class type 'int'
     while (!q.empty()) {
               ^
0_0_37771643_17409.cpp:56:19: error: request for member 'top' in 'q', which is of non-class type 'int'
         int u = q.top().second;
                   ^
0_0_37771643_17409.cpp:57:11: error: request for member 'pop' in 'q', which is of non-class type 'int'
         q.pop();
           ^
0_0_37771643_17409.cpp:65:19: error: request for member 'push' in 'q', which is of non-class type 'int'
                 q.push({dis1[v], v});
                   ^
0_0_37771643_17409.cpp: In function 'void dij2(int)':
0_0_37771643_17409.cpp:86:43: error: wrong number of template arguments (0, should be 1)
     priority_queue<P, vector<P >, 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_37771643_17409.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_37771643_17409.cpp:86:45: error: template argument 3 is invalid
     priority_queue<P, vector<P >, greater<> > q;
                                             ^
0_0_37771643_17409.cpp:86:48: error: invalid type in declaration before ';' token
     priority_queue<P, vector<P >, greater<> > q;
                                                ^
0_0_37771643_17409.cpp:88:7: error: request for member 'push' in 'q', which is of non-class type 'int'
     q.push({0, s});
       ^
0_0_37771643_17409.cpp:89:15: error: request for member 'empty' in 'q', which is of non-class type 'int'
     while (!q.empty()) {
               ^
0_0_37771643_17409.cpp:90:19: error: request for member 'top' in 'q', which is of non-class type 'int'
         int u = q.top().second;
                   ^
0_0_37771643_17409.cpp:91:11: error: request for member 'pop' in 'q', which is of non-class type 'int'
         q.pop();
           ^
0_0_37771643_17409.cpp:99:19: error: request for member 'push' in 'q', which is of non-class type 'int'
                 q.push({dis2[v], v});
                   ^


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