[Dev-C++] & and *

[Jeeun C. <koo...@ya...>]

void
getData(int&lengCo,int&lengGro,string&comet,string&group);
void Convert(int lengCo,int lengGro,string
comet,string
group,vector<int>&ComNum,vector<int>&GroNum);
void
modNum(int&modCom,int&modGro,vector<int>ComNum,vector<int>GroNum,int
lengCo,int lengGro);

this is part of my program...and..as u can see, i used
& between a data type and a changeable variable..(i
was taught lyke that in my c++ class at school)..
but i found out that people are using * instead of &
for changeable variables...
so..i chaged every & to * and compiled it, but i got
lotta errors; when i used & and compiled, i didnt get
any error..

what should i use or do?

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