Created
November 30, 2010 18:13
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Objective C implementation of merge assignment
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// ~ 27 loc | |
#import <Foundation/Foundation.h> | |
@interface Main : NSObject | |
{ | |
NSMutableArray *a1, *a2, *merged; | |
} | |
@property(nonatomic, assign) NSMutableArray *a1, *a2, *merged; | |
- (NSMutableArray *)merge; | |
@end | |
@implementation Main | |
@synthesize a1, a2, merged; | |
-(NSMutableArray*)merge { | |
merged = [NSMutableArray arrayWithCapacity:a1.count+a2.count]; | |
while (a1.count != 0 && a2.count != 0) { | |
if ([[a1 objectAtIndex:0] intValue] < [[a2 objectAtIndex:0] intValue]) { | |
[merged addObject:[a1 objectAtIndex:0]]; | |
[a1 removeObjectAtIndex:0]; | |
} else { | |
[merged addObject:[a2 objectAtIndex:0]]; | |
[a2 removeObjectAtIndex:0]; | |
} | |
} | |
[merged addObjectsFromArray:(a1.count == 0 ? a2 : a1)]; | |
return merged; | |
} | |
@end | |
int main (int argc, const char * argv[]) { | |
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init]; | |
Main* m = [[Main alloc] init]; | |
m.a1 = [NSMutableArray arrayWithObjects: | |
[NSNumber numberWithInt:1], | |
[NSNumber numberWithInt:3], | |
[NSNumber numberWithInt:5], | |
[NSNumber numberWithInt:7], | |
[NSNumber numberWithInt:9], | |
[NSNumber numberWithInt:11],nil]; | |
m.a2 = [NSMutableArray arrayWithObjects: | |
[NSNumber numberWithInt:2], | |
[NSNumber numberWithInt:4], | |
[NSNumber numberWithInt:6], | |
[NSNumber numberWithInt:8], | |
[NSNumber numberWithInt:10], | |
[NSNumber numberWithInt:12],nil]; | |
[m merge]; | |
for(NSNumber* n in m.merged) { | |
NSLog(@"%d",[n intValue]); | |
} | |
[m release]; | |
[pool drain]; | |
return 0; | |
} |
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