Compilare: main.cpp: In function 'bool ok()': main.cpp:14:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'long long int arie13(long long int, long long int)': main.cpp:31:11: warning: suggest explicit braces to avoid ambiguous 'else' [-Wparentheses] if(a[l][y]) ^