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The task about programmar and coffe breaks
using System;
using static System.Console;
namespace ProgrammerCoffe
{
class Program
{
static void Main(string[] args)
{
do
{
int codeLinesCount = ParseInt("Enter code lines count or leave empty (10 by default): ", 10);
int maxCoffeCupCount = ParseInt("Enter mac coffe cup count or leave empty (2 by default): ", 2);
int coffeTime = ParseInt("Enter coffe time or leave empty (in minutes, 10 by default): ", 10);
int startLineTime = ParseInt("Enter init line time or leave empty (in minutes, 1 by default): ", 1);
Func<int, int> nextLineTime = x => x == 0 ? startLineTime : x * 2;
int minTime = int.MaxValue;
int minTimeCoffeCupCount = 0;
bool[] minTimeCoffeBreaks = null;
bool[] coffeBreaks;
for (int coffeCupCount = 0; coffeCupCount <= maxCoffeCupCount; coffeCupCount++)
{
coffeBreaks = InitCombination(codeLinesCount, coffeCupCount);
do
{
int currentLineTime = 0;
int totalTime = 0;
for (int j = 0; j < codeLinesCount; j++)
{
if (coffeBreaks[j])
{
totalTime += coffeTime;
currentLineTime = nextLineTime(0);
}
else
{
currentLineTime = nextLineTime(currentLineTime);
}
totalTime += currentLineTime;
}
if (totalTime < minTime)
{
minTime = totalTime;
minTimeCoffeCupCount = coffeCupCount;
minTimeCoffeBreaks = (bool[])coffeBreaks.Clone();
}
}
while (NextCombination(coffeBreaks));
}
WriteLine();
WriteLine($"Min Time: {minTime}");
WriteLine($"Min Time Coffe Cup Count: {minTimeCoffeCupCount}");
Write($"Optimal cup combination: ");
for (int i = 0; i < minTimeCoffeBreaks.Length; i++)
if (minTimeCoffeBreaks[i])
Write($"{i + 1} ");
WriteLine();
WriteLine();
Write($"Try again? (Y = yes, Other = exit) ");
}
while (ReadLine().Equals("y", StringComparison.InvariantCultureIgnoreCase));
}
private static int ParseInt(string message, int defaultValue)
{
bool error = false;
int value;
do
{
Write(message);
string input = ReadLine();
if (string.IsNullOrWhiteSpace(input))
{
return defaultValue;
}
if (!int.TryParse(input, out value))
{
WriteLine("Value is incorrect, please enter again");
error = true;
}
}
while (error);
return value;
}
private static bool[] InitCombination(int elementsCount, int count)
{
var elements = new bool[elementsCount];
for (int j = 0; j < count; j++)
elements[j] = true;
return elements;
}
private static bool NextCombination(bool[] elements)
{
int i = elements.Length - 1;
int restCount = 0;
while (i >= 0)
{
if (elements[i])
{
if (i + 1 != elements.Length && !elements[i + 1])
{
elements[i] = false;
elements[i + 1] = true;
for (int j = elements.Length - restCount; j < elements.Length; j++)
elements[j] = false;
for (int j = 0; j < restCount; j++)
elements[i + 2 + j] = true;
return true;
}
else
{
restCount++;
}
}
i--;
}
return false;
}
}
}
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