Compilare: main.cpp: In function 'void become()': main.cpp:62:48: warning: array subscript has type 'char' [-Wchar-subscripts] 62 | if('A'<=s[i] && s[i]<='Z') t[i]=val[s[i]]+'0'; | ~~~^ main.cpp: In function 'int main()': main.cpp:76:13: warning: array subscript has type 'char' [-Wchar-subscripts] 76 | val[ch]=1-val[ch]; | ^~ main.cpp:76:23: warning: array subscript has type 'char' [-Wchar-subscripts] 76 | val[ch]=1-val[ch]; | ^~ main.cpp: In function 'bool nu()': main.cpp:115:1: warning: control reaches end of non-void function [-Wreturn-type] 115 | } | ^