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Objective-C实现BloomFilter布隆过滤器的算法(附完整源码)
阅读量:794 次
发布时间:2023-02-17

本文共 1080 字,大约阅读时间需要 3 分钟。

Objective-C??Bloom Filter????????

??????Bloom Filter?

??????Bloom Filter???????????????????????????????????????????????????????????????

????????

?????????????????????????????????????????????????????????????????????????????

??????????

  • ?????????p
  • ????????n
  • ??p?????b
  • ???????????????????
  • ?????????????????p?????????

Objective-C????

#import @interface BloomFilter : NSObject{int _numBuckets; // ??????int _probability; // ??p??int *_hashTable; // ???} (instancetype)allocWithProbability:(float)p; (id)init; (void)insertValue:(id)val; (bool)containsValue:(id)val; (void)removeValue:(id)val; (void) dealloc; @end

???????

  • @interface???BloomFilter??????
  • numBuckets????????
  • probability????????p
  • hashTable???????????

????

?????????????

BloomFilter *filter = [[BloomFilter alloc] init]; [filter insertValue:@"apple"]; bool contains = [filter containsValue:@"apple"]; NSLog(@"???%d", contains);

?????

  • ????????????p???
  • ??????????????????
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