Mine

ERROR:voter.cpp: In member function 'bool VoterProgram::Voter::operator<(const VoterProgram::Voter&) const':voter.cpp:54: error: passing 'const VoterProgram::Voter' as 'this' argument of 'int VoterProgram::Voter::get_voter_number_int()' discards qualifiersCODE:int VoterProgram::Voter::get_voter_number_int(){	return voter_number;}bool VoterProgram::Voter::operator< (const VoterProgram::Voter& v)const {	if(voter_number<v.get_voter_number_int()) return true;	else return false;}