public void LargestExponential()
{
string content = ScriptTools.Cat(@"c:\euler\p099_base_exp.txt");
var original = content.Lines().ToArray();
var lines = content.Lines()
.Map <string, double>(
str =>
{
var numbers = str.Split(new char[] { ',' });
var a = int.Parse(numbers[0]);
var b = int.Parse(numbers[1]);
return(Math.Log10((double)a) * (double)b);
}
);
double max = 0.0;
int index = 1;
int max_idx = 1;
foreach (var line in lines)
{
if (max < line)
{
max = line;
max_idx = index;
}
index++;
}
Console.WriteLine("Max line {0}: {1}", max_idx, original[max_idx]);
}
public void CodedTriangleNumbers()
{
string content = ScriptTools.Cat(@"C:\euler\p042_words.txt");
var words = content.Replace("\"", "").Split(new char[] { ',' });
var numbers = words.Map <string, int>(word => word.Map <char, int>(c => c - 'A' + 1).Sum());
var triangles = Itertools.Range(1, 1000).Map <int, int>(i => i * (i + 1) / 2);
var result = 0;
foreach (var number in numbers)
{
if (triangles.Contains(number))
{
result++;
}
}
Console.WriteLine("result is {0}", result);
}
