Compilare: main.cpp: In function 'bool notop()': main.cpp:37:30: warning: array subscript has type 'char' [-Wchar-subscripts] return 1 - val[s[ind]]; ^ main.cpp: In function 'bool andop()': main.cpp:60:26: warning: array subscript has type 'char' [-Wchar-subscripts] return val[s[ind]]; ^ main.cpp: In function 'bool orop()': main.cpp:83:26: warning: array subscript has type 'char' [-Wchar-subscripts] return val[s[ind]]; ^ main.cpp: In function 'bool eval()': main.cpp:108:29: warning: array subscript has type 'char' [-Wchar-subscripts] rez = val[s[ind]]; ^ main.cpp: In function 'void solve()': main.cpp:136:23: warning: array subscript has type 'char' [-Wchar-subscripts] val[modific[i]] = 1 - val[modific[i]]; ^ main.cpp:136:45: warning: array subscript has type 'char' [-Wchar-subscripts] val[modific[i]] = 1 - val[modific[i]]; ^ main.cpp: In function 'bool notop()': main.cpp:46:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'bool andop()': main.cpp:69:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ main.cpp: In function 'bool orop()': main.cpp:92:1: warning: control reaches end of non-void function [-Wreturn-type] } ^