Compilare: user.cpp: In function ‘int main()’: user.cpp:71:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<temp.size();i++) ^ user.cpp:77:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<values.size();i++) ^ user.cpp:16:9: warning: unused variable ‘check’ [-Wunused-variable] bool check=true; ^ user.cpp:81:16: warning: ‘grouping’ may be used uninitialized in this function [-Wmaybe-uninitialized] grouping++; ^ user.cpp:42:20: warning: ‘iterations’ may be used uninitialized in this function [-Wmaybe-uninitialized] iterations++; ^