Compilare: main.cpp: In function 'int main()': main.cpp:18:56: warning: right operand of comma operator has no effect [-Wunused-value] 18 | else infectabil[x[i]]=infectabil[y[i]]=0,a[x[i]],a[y[i]]=0; | ~~~~~~^ main.cpp:25:61: warning: '*' in boolean context, suggest '&&' instead [-Wint-in-bool-context] 25 | else if(a[x[i]] && a[y[i]] && !(infectabil[x[i]]*infectabil[y[i]])) | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ main.cpp:10:15: warning: unused variable 'ok' [-Wunused-variable] 10 | bool a[N],ok,infectabil[N],neinfectabil[N]; | ^~