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iOS Swift Collections and Control Flow Control Flow With Conditional Statements Working With Logical Operators

NATHAN TRAN
NATHAN TRAN
2,367 Points
Posted by NATHAN TRAN
NATHAN TRAN
2,367 Points

if statement

I do not know where to start on this challenge; all I see is to start with "if n.."

operators.swift 
var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if n 
    // End code 
}

3 Answers

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points 
for n in 1...100 {


    if n % 7 == 0 && n % 2 != 0{
        results.append(n)
    }

}
james south
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

the modulo operator % aka remainder operator returns the remainder of division. so 5 % 2 is 1 because 2 goes into 5 2 times with a remainder of 1. any odd number divided by 2 has a remainder of 1, so if x % 2 == 1, x is odd. same for multiples of 7, if x % 7 == 0, x is a multiple of 7, because we have divided by 7 and there is no remainder.

NATHAN TRAN
NATHAN TRAN
2,367 Points
NATHAN TRAN
NATHAN TRAN
2,367 Points

Do I need to declare what "x" is?

robertrinca
robertrinca
Courses Plus Student 11,316 Points
robertrinca
robertrinca
Courses Plus Student 11,316 Points

x is n, which is going through a loop of 1 to 100 and testing each number.