Even numbers are at the beginning and all the Odd numbers, Objective-C

Even numbers are at the beginning and all the Odd numbers

#import <Foundation/Foundation.h>

@interface SorterClass:NSObject
- (int *) getRandom;
@end

@implementation SorterClass

- (int *) getRandom {
   static int  r[10];
   int i;

/* set the seed */
   srand( (unsigned)time( NULL ) );
   for ( i = 0; i < 10; ++i) {
      r[i] = rand() % 100;
      NSLog( @"r[%d] = %d\n", i, r[i]);
   }

return r;
}

- (int *) sort:(int *) numbers {
   
    int tmp;
    int i;
    int j;
    for ( i = 0; i < 10; ++i) {
      for ( j = 0; j < 10-i; ++j) {
          //if (numbers[j] > numbers[j+1]) {
          if (numbers[j] % 2) {
              tmp = numbers[j];
              numbers[j] = numbers[j+1];
              numbers[j+1] = tmp;
          }
      }
    }
 
   return numbers; 
}

@end

int main (int argc, const char * argv[])
{
    SorterClass *sorterClass = [[SorterClass alloc]init];
    
    NSLog( @"--- Before sort ---");
    
    int *b = [sorterClass getRandom];
    
    int *a = [sorterClass sort:b];
    
    NSLog( @"--- After sort ---");
    
    int i;
    for ( i = 0; i < 10; ++i) {
      NSLog( @"r[%d] = %d\n", i, a[i]);
    }
    
    return 0;
}


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