public static void Main()
{
string input = Console.ReadLine();
HashTable <char, int> hashTable = new HashTable <char, int>();
foreach (char c in input)
{
if (hashTable.ContainsKey(c))
{
hashTable[c]++;
}
else
{
hashTable[c] = 1;
}
}
foreach (var keyValue in hashTable.OrderBy(kv => kv.Key))
{
Console.WriteLine($"{keyValue.Key}: {keyValue.Value} time/s");
}
}
public Dictionary()
{
this.table = new HashTable <TKey, TValue>();
}