prepare (1/3): 
finished

make (2/3): 
g++ -o main main.cpp
main.cpp: In function 'int findSpanning(std::map<int, std::vector<edge> >, int)':
main.cpp:102:41: error: 'INT_MAX' was not declared in this scope
         nodeToAdd.push_back({it->first, INT_MAX});
                                         ^~~~~~~
main.cpp:102:41: note: suggested alternative: 'INT8_MAX'
         nodeToAdd.push_back({it->first, INT_MAX});
                                         ^~~~~~~
                                         INT8_MAX
main.cpp:102:49: error: no matching function for call to 'std::vector<mstEdge>::push_back(<brace-enclosed initializer list>)'
         nodeToAdd.push_back({it->first, INT_MAX});
                                                 ^
In file included from /usr/include/c++/7/vector:64:0,
                 from main.cpp:2:
/usr/include/c++/7/bits/stl_vector.h:939:7: note: candidate: void std::vector<_Tp, _Alloc>::push_back(const value_type&) [with _Tp = mstEdge; _Alloc = std::allocator<mstEdge>; std::vector<_Tp, _Alloc>::value_type = mstEdge]
       push_back(const value_type& __x)
       ^~~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:939:7: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'const value_type& {aka const mstEdge&}'
/usr/include/c++/7/bits/stl_vector.h:953:7: note: candidate: void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = mstEdge; _Alloc = std::allocator<mstEdge>; std::vector<_Tp, _Alloc>::value_type = mstEdge]
       push_back(value_type&& __x)
       ^~~~~~~~~
/usr/include/c++/7/bits/stl_vector.h:953:7: note:   no known conversion for argument 1 from '<brace-enclosed initializer list>' to 'std::vector<mstEdge>::value_type&& {aka mstEdge&&}'
Makefile:2: recipe for target 'main' failed
make: *** [main] Error 1

build failed