Julio Biason
2aa741cb86
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3 years ago | |
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.exercism | 3 years ago | |
CarsAssemble.cs | 3 years ago | |
CarsAssemble.csproj | 3 years ago | |
CarsAssembleTests.cs | 3 years ago | |
HELP.md | 3 years ago | |
HINTS.md | 3 years ago | |
README.md | 3 years ago |
README.md
Cars, Assemble!
Welcome to Cars, Assemble! on Exercism's C# Track.
If you need help running the tests or submitting your code, check out HELP.md
.
If you get stuck on the exercise, check out HINTS.md
, but try and solve it without using those first :)
Introduction
Numbers
There are two different types of numbers in C#:
- Integers: numbers with no digits behind the decimal separator (whole numbers). Examples are
-6
,0
,1
,25
,976
and500000
. - Floating-point numbers: numbers with zero or more digits behind the decimal separator. Examples are
-2.4
,0.1
,3.14
,16.984025
and1024.0
.
The two most common numeric types in C# are int
and double
. An int
is a 32-bit integer and a double
is a 64-bit floating-point number.
Arithmetic is done using the standard arithmetic operators. Numbers can be compared using the standard numeric comparison operators and the equality (==
) and inequality (!=
) operators.
C# has two types of numeric conversions:
- Implicit conversions: no data will be lost and no additional syntax is required.
- Explicit conversions: data could be lost and additional syntax in the form of a cast is required.
As an int
has less precision than a double
, converting from an int
to a double
is safe and is thus an implicit conversion. However, converting from a double
to an int
could mean losing data, so that requires an explicit conversion.
If Statements
In this exercise you must conditionally execute logic. The most common way to do this in C# is by using an if/else
statement:
int x = 6;
if (x == 5)
{
// Execute logic if x equals 5
}
else if (x > 7)
{
// Execute logic if x greater than 7
}
else
{
// Execute logic in all other cases
}
The condition of an if
statement must be of type bool
. C# has no concept of truthy values.
Instructions
In this exercise you'll be writing code to analyze the production of an assembly line in a car factory. The assembly line's speed can range from 0
(off) to 10
(maximum).
At its lowest speed (1
), 221
cars are produced each hour. The production increases linearly with the speed. So with the speed set to 4
, it should produce 4 * 221 = 884
cars per hour. However, higher speeds increase the likelihood that faulty cars are produced, which then have to be discarded. The following table shows how speed influences the success rate:
1
to4
: 100% success rate.5
to8
: 90% success rate.9
: 80% success rate.10
: 77% success rate.
You have two tasks.
1. Calculate the production rate per hour
Implement the (static) AssemblyLine.ProductionRatePerHour()
method to calculate the assembly line's production rate per hour, taking into account its success rate:
AssemblyLine.ProductionRatePerHour(6)
// => 1193.4
Note that the value returned is a double
.
2. Calculate the number of working items produced per minute
Implement the (static) AssemblyLine.WorkingItemsPerMinute()
method to calculate how many working cars are produced per minute:
AssemblyLine.WorkingItemsPerMinute(6)
// => 19
Note that the value returned is an int
.