Compilare: main.cpp: In function 'int rad(int)': main.cpp:44:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:89:67: warning: suggest parentheses around '&&' within '||' [-Wparentheses] if((!((b[i].z <= n && viz[b[i].w] == true) || b[i].w <= n && viz[b[i].z] == true)) && rad(b[i].z) != rad(b[i].w)) { ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~