Compilare: main.cpp: In member function 'void Graf::add(int, int, int)': main.cpp:30:45: warning: narrowing conversion of '(((Graf*)this)->Graf::graf + ((sizetype)(((long unsigned int)to) * 24ul)))->std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >()' from 'std::vector<Muchie>::size_type {aka long unsigned int}' to 'int' inside { } [-Wnarrowing] Muchie ob1 = {to,0,cap,graf[to].size()}; ~~~~~~~~~~~~~^~ main.cpp:31:49: warning: narrowing conversion of '(((Graf*)this)->Graf::graf + ((sizetype)(((long unsigned int)from) * 24ul)))->std::vector<_Tp, _Alloc>::size<Muchie, std::allocator<Muchie> >()' from 'std::vector<Muchie>::size_type {aka long unsigned int}' to 'int' inside { } [-Wnarrowing] Muchie ob2 = {from,0,cap,graf[from].size()}; ~~~~~~~~~~~~~~~^~ main.cpp: In member function 'int Graf::dfs(int, int, int, int*)': main.cpp:75:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; start[from] < graf[from].size(); start[from]++) ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:145:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<muchii.size();i++) ~^~~~~~~~~~~~~~