Compilare: main.cpp: In function 'void makeMove(int, std::vector<std::vector<char> >&, long long unsigned int, int, int, int, int)': main.cpp:90:33: warning: narrowing conversion of '((id + 65) - 1)' from 'int' to 'char' inside { } [-Wnarrowing] sol.push_back({id + 'A' - 1, getDir(dir), arr.size() + 1}); ~~~~~~~~~^~~ main.cpp:90:62: warning: narrowing conversion of '(arr.std::vector<_Tp, _Alloc>::size<Data, std::allocator<Data> >() + 1ul)' from 'std::vector<Data>::size_type {aka long unsigned int}' to 'int' inside { } [-Wnarrowing] sol.push_back({id + 'A' - 1, getDir(dir), arr.size() + 1}); ~~~~~~~~~~~^~~