Recap - Factorial
Part of the Fundamentals section of Coddy's Kotlin journey. Lesson 53 of 93.
Challenge
MediumWrite a function factorial that takes n and returns the factorial of that number.
Use a loop to multiply all positive integers from 1 to n together.
Parameters:
n(Int): A positive integer (1 or greater)
Returns: The factorial of n (Int)
Input constraints: The input satisfies 1 <= n <= 12, so the factorial fits in Int.
Try it yourself
fun factorial(n: Int): Int {
// Write code here
}
All lessons in Fundamentals
4Operators Part 1
Arithmetic OperatorsModulo OperatorAugmented AssignmentComparison OperatorsRecap - Simple Math7Basic IO
Println FunctionString TemplatesReadLine InputType ConversionRecap - Years Until RetirementRecap - True or False10Functions
Declare A FunctionParameters And ArgumentsReturn ValuesNamed ArgumentsDefault ValuesSingle Expression FunctionsRecap - Sigma FunctionRecap - Validation Function2Variables
Val vs VarType InferenceNumbersStringBooleanNaming ConventionsRecap - Initialize Variables5Operators Part 2
Logical Operators Part 1Logical Operators Part 2Logical Operators Part 3Ternary With If ExpressionRecap - Simple Logic8Bill Split Calculator
Welcome MessageGetting Input
Calculating Tip And TotalSplitting The BillFormatted Output3Nullability
What Is Null SafetyNullable TypesSafe Call OperatorElvis OperatorFunction Challenge BasicsNot Null AssertionRecap - Safe Access6Decision Making
If StatementIf - ElseIf As An ExpressionWhen ExpressionWhen With RangesRecap - Simple Calculator9Loops
For LoopWhile LoopDo-While LoopBreakContinueRanges In LoopsNested LoopRecap - FactorialRecap - Dynamic InputPractice on your own: Kotlin playground