Dicts in C++

I write a lot of Perl/Python scripts and know a bit of C++ but I would like to learn more.

How do I do the following in C++

#!/usr/env python
# dict of lists
d = {}
d[0]=[]
d[0].append('Group1')
d[0].append('Group2')
d[1]=[]
d[1].append('GroupA')
d[1].append('GroupB')

# split a string delimited by tabs
# increment dict values
d ={}
with open(fh) as f:
    for l in f:
        r = l.rstrip('\n').split('\t')
        # r[0] can be Group1, Group2, GroupA, Group B
       if d.get(r[0]) == None: d[r[0]]=1
       else: d[r[0]]+=1

# iterate through the dict

for x in d:
    print x,d[x]

Thanks :)

I'm writing a genetics tool that you can use with your 23andMe/Ancestry data so if you guys help me I will eventually put up the code with the subject "Ancestry Analysis C++ Thanks /g/"