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Comitting changes for Sajid Yar Khan #13

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115 changes: 93 additions & 22 deletions problem-solving/Program.cs
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Original file line number Diff line number Diff line change
@@ -1,6 +1,9 @@
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Diagnostics.Eventing.Reader;
using System.Linq;
using System.Runtime.Remoting.Messaging;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
Expand All @@ -11,89 +14,132 @@ public class Program
{
static void Main(string[] args)
{
var listA = new List<int>(new[] { 1, 1, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10 });
var listB = new List<int>(new[] { 1,3, 4, 6, 8, 9, 10 });
var nPlayerBlackJack = new List<int>(new[] {20,23,25,15,14,7,11});
const string doubleString = "PEACE";
const string countChar = "PEEAACE";
const string c = "A";
const string sumDigits = "P1E22A33C4E55";
const int factorial = 9;

Console.WriteLine("Sum of All Values: "+SumArray(listA));
Console.WriteLine("Sum of Odd Values: " + SumArrayOddValues(listA));
Console.WriteLine("Sum of every second value: " + SumArrayEverySecondValue(listA));
Console.WriteLine("List of unique values");
foreach (var uniqueList in GetUniqueValues(listA))
Console.WriteLine(" " + Convert.ToString(uniqueList));
Console.WriteLine("List of intersect values");
foreach (var uniqueList in GetArrayIntersect(listA, listB))
Console.WriteLine(" " + Convert.ToString(uniqueList));
Console.WriteLine("List of non intersect values");
foreach (var uniqueList in GetArrayNotIntersect(listA, listB))
Console.WriteLine(" " + Convert.ToString(uniqueList));
Console.WriteLine("Has Sum : " + (HasSum(listA,5) ? "Yes" : "No"));
Console.WriteLine("Lone Sum: " + LoneSum(listA));
Console.WriteLine("Double String: "+ DoubleString(doubleString));
Console.WriteLine("Count Chars: " + CountChars(countChar,Convert.ToChar(c)));
Console.WriteLine("Sum Digits: " + SumDigits(sumDigits));
Console.WriteLine("Sum Numbers: " + SumNumbers(sumDigits));
Console.WriteLine("Is Anagram : " + (IsAnagram("care","erac") ? "Yes" : "No"));
Console.WriteLine("BlackJack value: " + BlackJack(23,20));
Console.WriteLine("Five Player BlackJack: " + FivePlayerBlackJack(10,11,15,30,1));
Console.WriteLine("N Player BlackJack: " + NPlayerBlackJack(nPlayerBlackJack));
Console.WriteLine("Factorial of {0} is : " + Factorial(factorial), factorial);
Console.ReadLine();
}

public static long SumArray(IEnumerable<int> arr)
{
// return the sum of all the values in the array
// TODO
return 0;
return arr.Sum();
}

public static long SumArrayOddValues(IEnumerable<int> arr)
{
// return the sum of all the values in the array that are odd
// TODO
return 0;
return arr.Where(i=> i%2 != 0).Sum();
}

public static long SumArrayEverySecondValue(IEnumerable<int> arr)
{
// return the sum of every second value in the array. i.e. the 2nd value + the 4th value + the 6th value ...
// TODO
return 0;
return arr.Skip(1).Where((c, i) => i%2 == 0).Sum();

}

public static IEnumerable<int> GetUniqueValues(IEnumerable<int> arr)
{
// return an array that contains only unique values from the passed in array
// TODO
return null;
return arr.Distinct();

}

public static IEnumerable<int> GetArrayIntersect(IEnumerable<int> arrA, IEnumerable<int> arrB)
{
// return an array that contains all the values that are in array A and array B
// TODO
return null;
return arrA.Intersect(arrB);
}

public static IEnumerable<int> GetArrayNotIntersect(IEnumerable<int> arrA, IEnumerable<int> arrB)
{
// return an array that contains all the values that are in array A or array B but not in both array A and array B
// TODO
return null;
return arrA.Except(arrB);
}

public static Boolean HasSum(IEnumerable<int> arr, long target)
{
// return true if any 2 values in the array have a sum equal to the target value
// TODO
foreach (var i in arr)
{

}
return false;
}

public static long LoneSum(IEnumerable<int> arr)
{
// Given an array of int values, return their sum.
// However, if any of the values is the same as another of the values, it does not count towards the sum.
return 0;
var sum = 0;
var previousValue = 0;
foreach (var i in arr)
{
if (i != previousValue)
sum += i;

previousValue = i;
}
return sum;
}

public static String DoubleString(String s)
{
// return a string that is the original string with each character in the string repeated twice
// e.g. for input "ABCDE", return "AABBCCDDEE"
return null;
return s.Aggregate(string.Empty, (current, c) => current + (Convert.ToString(c) + Convert.ToString(c)));
}

public static int CountChars(String s, char c)
{
// return the count of how many times char c occurs in string s
return 0;
return s.Count(x => x == c);
}

public static long SumDigits(String s)
{
// return the sum of the digits 0-9 that appear in the string, ignoring all other characters
// e.g. "123" return 6
return 0;
return s.Where(c => c > '0' && c <= '9').Sum(c => (int) Char.GetNumericValue(c));
}

public static long SumNumbers(String s)
{
// return the sum of the numbers that appear in the string, ignoring all other characters
// a number is a series of 1 or more digits in a row
// e.g. "11 22" returns 33
var a = s.Where(c => c > '0' && c <= '9');

return 0;
}

Expand All @@ -103,31 +149,49 @@ public static Boolean IsAnagram(String s1, String s2)
// An anagram is produced by rearranging the letters of one string into another
// e.g. care is an anagram of race
// cat is not an anagram of rat
return false;
return string.Concat(s1.Reverse()).Equals(s2);
}

public static int BlackJack(int count1, int count2)
{
// Given 2 integer values greater than 0,
// return whichever value is nearest to 21 without going over.
// Return 0 if they both go over.
return 0;
return (count1 > 21) && (count2 > 21) ? 0 : ((21 - count1) > (21 - count2) ? count1 : count2);
}

public static int FivePlayerBlackJack(int count1, int count2, int count3, int count4, int count5)
{
// Given 5 integer values greater than 0,
// return whichever value is nearest to 21 without going over.
// Return 0 if they all go over.
return 0;
if ((count1 > 21) && (count2 > 21) && (count3 > 21) && (count4 > 21) && (count5 > 21))
return 0;

var dictionary = new Dictionary<string, int>();

if (count1 < 21) dictionary.Add(Convert.ToString(count1), (21 - count1));
if (count2 < 21) dictionary.Add(Convert.ToString(count2), (21 - count2));
if (count3 < 21) dictionary.Add(Convert.ToString(count3), (21 - count3));
if (count4 < 21) dictionary.Add(Convert.ToString(count4), (21 - count4));
if (count5 < 21) dictionary.Add(Convert.ToString(count5), (21 - count5));

return Convert.ToInt32(dictionary.Max(k => k.Key));
}

public static int NPlayerBlackJack(IEnumerable<int> counts)
{
// Given a list of integer values greater than 0,
// return whichever value is nearest to 21 without going over.
// Return 0 if they all go over.
return 0;
var c = counts.Count(n => n > 21);

if (c == counts.Count())
return 0;

var dictionary = counts.Where(count => count < 21).ToDictionary(count => Convert.ToString(count));

return Convert.ToInt32(dictionary.Max(a => a.Value));
}

public static Dictionary<String, int> WordCount(IEnumerable<String> arr)
Expand All @@ -140,7 +204,14 @@ public static Dictionary<String, int> WordCount(IEnumerable<String> arr)
public static int Factorial(int n)
{
// Given n, return the factorial of n, which is n * (n-1) * (n-2) ... 1
return 0;
var factorial = 1;

for (var counter = 1; counter <= n; counter++)
{
factorial = factorial*counter;
}

return factorial;
}

public static List<String> FB(int n)
Expand Down