Comparison between signed and unsigned int

when i initialize vector loop lie for(int i=0;i<v.size();i++)
it gives compilation error that comparison between signed and unsigned integer.

@abhisek905 hey abhishek can I see your code ?

code is like
for(int i=0;i<v.size();i++)
{
cin>>n;
v.push_back(n);
}
Error: comparison between signed and unsigned integer.

@abhisek905 hey abhishek what kind of data type used in vector declaration ?

Integer type
Vectorv

@abhisek905 hey abhishek can you please tell me what kind of value you will insert into your vector ?