Compilare: main.cpp: In function 'int main()': main.cpp:22:43: warning: array subscript has type 'char' [-Wchar-subscripts] 22 | v[i] = {v[nr - 1].first + dir[ch].first,v[nr - 1].second + dir[ch].second}; | ^~ main.cpp:22:76: warning: array subscript has type 'char' [-Wchar-subscripts] 22 | v[i] = {v[nr - 1].first + dir[ch].first,v[nr - 1].second + dir[ch].second}; | ^~