Compilare: user.cpp: In function ‘void Solve()’: user.cpp:37:9: warning: unused variable ‘cnt’ [-Wunused-variable] int cnt=1,Nod=0; ^ user.cpp: In function ‘void getAnswer()’: user.cpp:90:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Sol.size()-1;i++) ^ user.cpp: In function ‘int main()’: user.cpp:101:37: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("tester.out","w",stdout); ^