Why am i getting this warning?

Question

Here if i remove the p variable then it says p undeclared and if i keep it it says that it is never used.Why?
https://code.sololearn.com/c2Sv9ttP3242/?ref=app

Answer 1

Remove `p` from
line 9 : int number,n,p,c=1;

remove this statement
p=number%10;
From line 15.

remove this duplicate post from QA forum
( I know it happens due to network error )
https://www.sololearn.com/Discuss/2056170/?ref=app