Compilare: user.cpp: In function ‘bool test()’: user.cpp:23:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] ++ viz1[sir1[i]]; ^ user.cpp:26:24: warning: array subscript has type ‘char’ [-Wchar-subscripts] ++ viz2[sir2[i]]; ^ user.cpp: In function ‘int main()’: user.cpp:49:13: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>sir1 + 1>>sir2 + 1; ^ user.cpp:49:23: warning: suggest parentheses around ‘+’ inside ‘>>’ [-Wparentheses] f>>sir1 + 1>>sir2 + 1; ^ user.cpp:64:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] viz[sir2[i]].push_back(i); ^ user.cpp:67:30: warning: array subscript has type ‘char’ [-Wchar-subscripts] int nod = viz[sir1[i]].front(); ^ user.cpp:68:20: warning: array subscript has type ‘char’ [-Wchar-subscripts] viz[sir1[i]].pop_front(); ^