Compilare: main.cpp: In function 'int restu()': main.cpp:63:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:80:27: warning: array subscript has type 'char' [-Wchar-subscripts] if(fv[a[i]]==0) ^ main.cpp:82:27: warning: array subscript has type 'char' [-Wchar-subscripts] if(fv[a[i]]==0) ^ main.cpp:84:26: warning: array subscript has type 'char' [-Wchar-subscripts] ++fv[a[i]]; ^ main.cpp:91:27: warning: array subscript has type 'char' [-Wchar-subscripts] if(fv[b[i]]==0) ^ main.cpp:93:26: warning: array subscript has type 'char' [-Wchar-subscripts] ++fv[b[i]]; ^