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

Mazen Halawi
Mazen Halawi
7,806 Points
Posted by Mazen Halawi
Mazen Halawi
7,806 Points

Objective-C Exercise Not Working

Im not sure why it says its wrong, it keeps saying "Check your Syntax" i applied it in a project and it worked.

variable_assignment.mm 
int mathTotal;
bool isComplete;

for (int i = 5; i <= 25; i++) {
  mathTotal++;
  if (i == 25) {
    isComplete = TRUE;  
  }
}
Mazen Halawi
Mazen Halawi
7,806 Points
Mazen Halawi
Mazen Halawi
7,806 Points

Nevermind i got the solution:

int mathTotal = 0;
bool isComplete;

for (int i = 5; i <= 25; i++) {
  mathTotal += i;

  if (i==25) {
    isComplete = TRUE;    
  }
}

1 Answer

Steve Hunter
Steve Hunter
57,712 Points
Steve Hunter
Steve Hunter
57,712 Points

Hi Mazen

I'm glad you got to a solution for the challenge. You could be more simplistic in your code; rather than testing for i == 25 just set the boolean outside of the loop. The question asks you to set the boolean to true once the loop has finished, (which amounts to the same thing as that means i == 25), but means you don't run the i == 25 test 21 times unnecessarily:

int mathTotal;
bool isComplete;

for(int i = 5; i <= 25; i++){
  mathTotal += i;
}

isComplete = true;

I hope that helps a little - it's just a different take on the same solution.

Steve.

Mazen Halawi
Mazen Halawi
7,806 Points
Mazen Halawi
Mazen Halawi
7,806 Points

yeah you are right about that, it got in when i was attempting different approaches to solve the question and i guess it stayed there but originally i put it outside like you did.

cheers!