Compilare: main.cpp: In function 'bool highpriority()': main.cpp:56:37: warning: array subscript has type 'char' [-Wchar-subscripts] 56 | r = val[ s[i] ]; | ~~~^ main.cpp: In function 'int main()': main.cpp:79:17: warning: array subscript has type 'char' [-Wchar-subscripts] 79 | val[ a[j] ] = !val[ a[j] ]; | ~~~^ main.cpp:79:32: warning: array subscript has type 'char' [-Wchar-subscripts] 79 | val[ a[j] ] = !val[ a[j] ]; | ~~~^ main.cpp: In function 'bool highpriority()': main.cpp:63:12: warning: 'r' may be used uninitialized in this function [-Wmaybe-uninitialized] 63 | return r; | ^