Loto number generator

gistfile1.m

#import <Foundation/Foundation.h>

int main(int argc, const char * argv[])
{
    @autoreleasepool {
        
        /* Loto _x out of _y */
        int _x = 7, _y = 39;

        NSMutableArray *numbers = [[NSMutableArray alloc] init];
        
        while ([numbers count] < _x) {
            int x = arc4random_uniform(_y + 1);
            if (x == 0) { continue; }
            
            NSNumber *number = [NSNumber numberWithInteger:x];
            
            if ([numbers containsObject:number] == NO) {
                [numbers addObject:number];
            }
        }
        
        NSArray *lotoNumbers = [numbers sortedArrayUsingSelector: @selector(compare:)];
        
        NSLog(@"Numbers %@", lotoNumbers);
        
    }
    
    return 0;
}