Compilare: main.cpp: In function 'int BF(int, bool*, int*)': main.cpp:25:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for(i=0;i<L[x].size();i++) | ~^~~~~~~~~~~~ main.cpp:20:13: warning: unused variable 'k' [-Wunused-variable] 20 | int i,x,k=0; | ^ main.cpp:35:1: warning: no return statement in function returning non-void [-Wreturn-type] 35 | } | ^