public int Solution(int[] eastWest)
{
// write your code in C# 5.0 with .NET 4.5 (Mono)
var passings = new Hashtable();
for (int i = 0; i < eastWest.Length; i++)
{
for (int j = 0; j < eastWest.Length; j++)
{
if (i == j)
{
continue;
}
var carPair = new CarPair(eastWest,
i,
j);
var hashCode = carPair.GetHashCode();
var isContains = passings.ContainsKey(hashCode);
if (carPair.IsValid &&
!isContains)
{
passings.Add(hashCode, carPair);
}
}
}
var array = new CarPair[passings.Values.Count];
passings.Values.CopyTo(array, 0);
return(passings.Values.Count);
}
public void OneThreeReturnsFalseTest()
{
var passingCars = new CarPair(m_EastWest,
1,
3);
Assert.False(passingCars.IsValid);
}
public void Setup()
{
m_EastWest = new[] { 0, 1, 0, 1, 1 };
m_CarPair = new CarPair(m_EastWest,
0,
1);
m_CarPairSwapped = new CarPair(m_EastWest,
1,
0);
m_CarPairOther = new CarPair(m_EastWest,
2,
3);
}
public void SameCarIsValidReturnsFalseTest()
{
var passingCars = new CarPair(m_EastWest, 2, 2);
Assert.False(passingCars.IsValid);
}
public void NonPassingCarsIsValidReturnsFalseTest()
{
var passingCars = new CarPair(m_EastWest, 0, 2);
Assert.False(passingCars.IsValid);
}