Compilare: main.cpp: In function 'int factor()': main.cpp:21:17: warning: array subscript has type 'char' [-Wchar-subscripts] else {r=b[*p];p+=2;} ^ main.cpp: In function 'int main()': main.cpp:67:12: warning: array subscript has type 'char' [-Wchar-subscripts] b[a]=!b[a]; ^ main.cpp:67:18: warning: array subscript has type 'char' [-Wchar-subscripts] b[a]=!b[a]; ^ main.cpp: In function 'int termen()': main.cpp:42:12: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] return r; ^