for each(String^ entry in input) hash[entry] = hash->ContainsKey(entry)
? Convert::ToInt32(hash[entry]->ToString()) + 1 : 1;

using namespace System;
using namespace System::Collections;

int main()
{
array<String^>^ input = {"a", "b", "a", "c", "b", "b"};
Hashtable^ hash = gcnew Hashtable;

for each(String^ entry in input) hash[entry] = hash->ContainsKey(entry)
? Convert::ToInt32(hash[entry]->ToString()) + 1 : 1;

for each(String^ entry in hash->Keys) Console::WriteLine("Key: {0} = {1}", entry, hash[entry]);
}

for each(String^ entry in input) dict[entry] = dict->ContainsKey(entry) ? dict[entry] + 1 : 1;

using namespace System;
using namespace System::Collections;

int main()
{
array<String^>^ input = {"a", "b", "a", "c", "b", "b"};
Generic::Dictionary<String^, int>^ dict = gcnew Generic::Dictionary<String^, int>();

for each(String^ entry in input) dict[entry] = dict->ContainsKey(entry) ? dict[entry] + 1 : 1;

for each(Generic::KeyValuePair<String^, int> kvp in dict) Console::WriteLine("Key: {0} = {1}", kvp.Key, kvp.Value);
}

map<string,int> hist;
for (auto e: { "a","b","a","c","b","b" })
++hist[e];
for (auto e: hist)
cout << e.first << " : " << e.second << endl;

#include <algorithm>
#include <iostream>
#include <map>

using namespace std;

int main()
{
map<string,int> hist;
for (auto e: { "a","b","a","c","b","b" })
++hist[e];
for (auto e: hist)
cout << e.first << " : " << e.second << endl;
}