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iOS Objective-C Basics Scope and Loops Review Scope and Loops

Ryan Maneo
Ryan Maneo
4,342 Points
Posted by Ryan Maneo
Ryan Maneo
4,342 Points

It compiled fine...

I don't understand why this isn't working in the Code Challenge... It works perfectly fine in Xcode... it prints 5 through 24 and stops once isComplete is == to true...

variable_assignment.mm 
    int mathTotal;
    bool isComplete;

   for (int n = 5; n <25; n++) {
        n = n + 1;
        if (mathTotal <= 25) {
            isComplete = true;
        }
        NSLog(@"%i", n);
    }

1 Answer

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

The task states Create a for loop that will begin with a value of 5 and end with a value of 25. In each iteration, add the incrementing value to mathTotal. When the loop has finished running, set 'isComplete' to true. (HINT: the last value used INSIDE the loop should be 25)

you need to loop from 5 up to and including 25. Thats the first thing wrong with your code. You need to use <= 25 not < 25

you also need to add n to mathTotal, not increment n by 1

then since the last value of the loop is going to be 25, we test if n == 25 and if it is we set isComplete to true. You tested if mathTotal <= 25 which is not what the task asked for. 

int mathTotal;
 bool isComplete

for (int n = 5; n <= 25; n++) {

    mathTotal = mathTotal + n;

    if (n == 25) {
     isComplete = true ;
    }

}