Compilare: user.cpp: In function ‘int fill(int, int)’: user.cpp:34:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ user.cpp: In function ‘void numarasol2(int)’: user.cpp:56:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i= 0; i<v[x].size();i++ ) ^ user.cpp: In function ‘int main()’: user.cpp:96:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i<v[nod].size();i++) { ^