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- using System;
- using System.Diagnostics;
- using System.Linq;
- using System.Threading;
- namespace ConsoleApplication1
- {
- class Program
- {
- static void Main()
- {
- Console.WriteLine("domi brian3 brian8");
- for (int i = 0; i < 1000; i++)
- {
- ProblemEight.SolutionEight();
- ProblemEight.SolutionEightAlt3();
- ProblemEight.SolutionEightAlt8();
- Thread.Sleep(1000);
- }
- }
- }
- class ProblemEight
- {
- static byte[] input = { 7, 3, 1, 6, 7, 1, 7, 6, 5, 3, 1, 3, 3, 0, 6, 2, 4, 9, 1, 9, 2, 2, 5, 1, 1, 9, 6, 7, 4, 4, 2, 6, 5, 7, 4, 7, 4, 2, 3, 5, 5, 3, 4, 9, 1, 9, 4, 9, 3, 4, 9, 6, 9, 8, 3, 5, 2, 0, 3, 1, 2, 7, 7, 4, 5, 0, 6, 3, 2, 6, 2, 3, 9, 5, 7, 8, 3, 1, 8, 0, 1, 6, 9, 8, 4, 8, 0, 1, 8, 6, 9, 4, 7, 8, 8, 5, 1, 8, 4, 3, 8, 5, 8, 6, 1, 5, 6, 0, 7, 8, 9, 1, 1, 2, 9, 4, 9, 4, 9, 5, 4, 5, 9, 5, 0, 1, 7, 3, 7, 9, 5, 8, 3, 3, 1, 9, 5, 2, 8, 5, 3, 2, 0, 8, 8, 0, 5, 5, 1, 1, 1, 2, 5, 4, 0, 6, 9, 8, 7, 4, 7, 1, 5, 8, 5, 2, 3, 8, 6, 3, 0, 5, 0, 7, 1, 5, 6, 9, 3, 2, 9, 0, 9, 6, 3, 2, 9, 5, 2, 2, 7, 4, 4, 3, 0, 4, 3, 5, 5, 7, 6, 6, 8, 9, 6, 6, 4, 8, 9, 5, 0, 4, 4, 5, 2, 4, 4, 5, 2, 3, 1, 6, 1, 7, 3, 1, 8, 5, 6, 4, 0, 3, 0, 9, 8, 7, 1, 1, 1, 2, 1, 7, 2, 2, 3, 8, 3, 1, 1, 3, 6, 2, 2, 2, 9, 8, 9, 3, 4, 2, 3, 3, 8, 0, 3, 0, 8, 1, 3, 5, 3, 3, 6, 2, 7, 6, 6, 1, 4, 2, 8, 2, 8, 0, 6, 4, 4, 4, 4, 8, 6, 6, 4, 5, 2, 3, 8, 7, 4, 9, 3, 0, 3, 5, 8, 9, 0, 7, 2, 9, 6, 2, 9, 0, 4, 9, 1, 5, 6, 0, 4, 4, 0, 7, 7, 2, 3, 9, 0, 7, 1, 3, 8, 1, 0, 5, 1, 5, 8, 5, 9, 3, 0, 7, 9, 6, 0, 8, 6, 6, 7, 0, 1, 7, 2, 4, 2, 7, 1, 2, 1, 8, 8, 3, 9, 9, 8, 7, 9, 7, 9, 0, 8, 7, 9, 2, 2, 7, 4, 9, 2, 1, 9, 0, 1, 6, 9, 9, 7, 2, 0, 8, 8, 8, 0, 9, 3, 7, 7, 6, 6, 5, 7, 2, 7, 3, 3, 3, 0, 0, 1, 0, 5, 3, 3, 6, 7, 8, 8, 1, 2, 2, 0, 2, 3, 5, 4, 2, 1, 8, 0, 9, 7, 5, 1, 2, 5, 4, 5, 4, 0, 5, 9, 4, 7, 5, 2, 2, 4, 3, 5, 2, 5, 8, 4, 9, 0, 7, 7, 1, 1, 6, 7, 0, 5, 5, 6, 0, 1, 3, 6, 0, 4, 8, 3, 9, 5, 8, 6, 4, 4, 6, 7, 0, 6, 3, 2, 4, 4, 1, 5, 7, 2, 2, 1, 5, 5, 3, 9, 7, 5, 3, 6, 9, 7, 8, 1, 7, 9, 7, 7, 8, 4, 6, 1, 7, 4, 0, 6, 4, 9, 5, 5, 1, 4, 9, 2, 9, 0, 8, 6, 2, 5, 6, 9, 3, 2, 1, 9, 7, 8, 4, 6, 8, 6, 2, 2, 4, 8, 2, 8, 3, 9, 7, 2, 2, 4, 1, 3, 7, 5, 6, 5, 7, 0, 5, 6, 0, 5, 7, 4, 9, 0, 2, 6, 1, 4, 0, 7, 9, 7, 2, 9, 6, 8, 6, 5, 2, 4, 1, 4, 5, 3, 5, 1, 0, 0, 4, 7, 4, 8, 2, 1, 6, 6, 3, 7, 0, 4, 8, 4, 4, 0, 3, 1, 9, 9, 8, 9, 0, 0, 0, 8, 8, 9, 5, 2, 4, 3, 4, 5, 0, 6, 5, 8, 5, 4, 1, 2, 2, 7, 5, 8, 8, 6, 6, 6, 8, 8, 1, 1, 6, 4, 2, 7, 1, 7, 1, 4, 7, 9, 9, 2, 4, 4, 4, 2, 9, 2, 8, 2, 3, 0, 8, 6, 3, 4, 6, 5, 6, 7, 4, 8, 1, 3, 9, 1, 9, 1, 2, 3, 1, 6, 2, 8, 2, 4, 5, 8, 6, 1, 7, 8, 6, 6, 4, 5, 8, 3, 5, 9, 1, 2, 4, 5, 6, 6, 5, 2, 9, 4, 7, 6, 5, 4, 5, 6, 8, 2, 8, 4, 8, 9, 1, 2, 8, 8, 3, 1, 4, 2, 6, 0, 7, 6, 9, 0, 0, 4, 2, 2, 4, 2, 1, 9, 0, 2, 2, 6, 7, 1, 0, 5, 5, 6, 2, 6, 3, 2, 1, 1, 1, 1, 1, 0, 9, 3, 7, 0, 5, 4, 4, 2, 1, 7, 5, 0, 6, 9, 4, 1, 6, 5, 8, 9, 6, 0, 4, 0, 8, 0, 7, 1, 9, 8, 4, 0, 3, 8, 5, 0, 9, 6, 2, 4, 5, 5, 4, 4, 4, 3, 6, 2, 9, 8, 1, 2, 3, 0, 9, 8, 7, 8, 7, 9, 9, 2, 7, 2, 4, 4, 2, 8, 4, 9, 0, 9, 1, 8, 8, 8, 4, 5, 8, 0, 1, 5, 6, 1, 6, 6, 0, 9, 7, 9, 1, 9, 1, 3, 3, 8, 7, 5, 4, 9, 9, 2, 0, 0, 5, 2, 4, 0, 6, 3, 6, 8, 9, 9, 1, 2, 5, 6, 0, 7, 1, 7, 6, 0, 6, 0, 5, 8, 8, 6, 1, 1, 6, 4, 6, 7, 1, 0, 9, 4, 0, 5, 0, 7, 7, 5, 4, 1, 0, 0, 2, 2, 5, 6, 9, 8, 3, 1, 5, 5, 2, 0, 0, 0, 5, 5, 9, 3, 5, 7, 2, 9, 7, 2, 5, 7, 1, 6, 3, 6, 2, 6, 9, 5, 6, 1, 8, 8, 2, 6, 7, 0, 4, 2, 8, 2, 5, 2, 4, 8, 3, 6, 0, 0, 8, 2, 3, 2, 5, 7, 5, 3, 0, 4, 2, 0, 7, 5, 2, 9, 6, 3, 4, 5, 0 };
- static long[] timings = new long[100000];
- public static void SolutionEight()
- {
- Stopwatch watch = new Stopwatch();
- for (int iterations = 0; iterations < timings.Length; iterations++)
- {
- long product, max = 0;
- watch.Restart();
- for (short i = 0; i < 987; i++)
- {
- product = (long)(input[i] * input[i + 1] * input[i + 2] * input[i + 3] * input[i + 4] * input[i + 5] * input[i + 6]) * (input[i + 7] * input[i + 8] * input[i + 9] * input[i + 10] * input[i + 11] * input[i + 12]);
- max = product > max ? product : max;
- if (input[i + 12] == 0)
- i += 13;
- }
- watch.Stop();
- timings[iterations] = watch.ElapsedTicks;
- }
- Console.Write(timings.Average());
- }
- public static void SolutionEightAlt3()
- {
- Stopwatch watch = new Stopwatch();
- for (int iterations = 0; iterations < timings.Length; iterations++)
- {
- watch.Restart();
- long best = 0;
- uint prevUsable = 0;
- for (uint i = 0; i < 1000; ++i)
- {
- if (input[i] == 0)
- {
- prevUsable = 0;
- }
- else
- {
- ++prevUsable;
- if (prevUsable >= 13)
- {
- long prevProduct = (long) (input[i - 12]*
- input[i - 11]*
- input[i - 10]*
- input[i - 9]*
- input[i - 8]*
- input[i - 7])*
- (long) (input[i - 6]*
- input[i - 5]*
- input[i - 4]*
- input[i - 3]*
- input[i - 2]*
- input[i - 1]*
- input[i]);
- best = prevProduct > best ? prevProduct : best;
- }
- }
- }
- watch.Stop();
- timings[iterations] = watch.ElapsedTicks;
- }
- Console.Write(" - " + timings.Average());
- }
- public static void SolutionEightAlt8()
- {
- Stopwatch watch = new Stopwatch();
- for (int iterations = 0; iterations < timings.Length; iterations++)
- {
- watch.Restart();
- double best = 0;
- double prevProduct = 1;
- uint prevUsable = 0;
- for (uint i = 0; i < 1000; ++i)
- {
- if (input[i] == 0)
- {
- prevUsable = 0;
- prevProduct = 1;
- }
- else
- {
- ++prevUsable;
- prevProduct *= input[i];
- if (prevUsable > 13)
- {
- double recip = 1.0/input[i - 13];
- prevProduct *= recip;
- }
- best = prevProduct > best ? prevProduct : best;
- }
- }
- watch.Stop();
- timings[iterations] = watch.ElapsedTicks;
- }
- Console.WriteLine(" - " + timings.Average());
- }
- }
- }
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