Compilare: main.cpp: In instantiation of 'void containrr::Graph<T, U>::init(long long unsigned int, bool) [with T = int; U = int]': main.cpp:106:17: required from 'containrr::Graph<T, U>::Graph(long long unsigned int, bool) [with T = int; U = int]' main.cpp:148:26: required from here main.cpp:32:30: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 32 | for(int i=0;i<n;i++) | ~^~ main.cpp:35:30: warning: comparison of integer expressions of different signedness: 'int' and 'long long unsigned int' [-Wsign-compare] 35 | for(int i=0;i<n;i++) | ~^~