这里每一个数在我们做映射算法的时候,会依据这个数找到一个数组的位置,所以不能用其他标记。 我的python代码: 1classSolution(object):2deffindDuplicates(self, nums):3"""4:type nums: List[int]5:rtype: List[int]6"""7res =[]8foriinnums:9ifnums[abs(i)-1] >0:10nums[abs(i)-1] *= -11...
Can you solve this real interview question? Find All Duplicates in an Array - Given an integer array nums of length n where all the integers of nums are in the range [1, n] and each integer appears at most twice, return an array of all the integers that
df.drop_duplicates(inplace=True) # 处理异常值 # 假设年龄大于100的是异常值 df = df[df['Age'] <= 100] # 打印清洗后数据 print("清洗后数据:") print(df) 四、数据分析与建模 清洗数据后,我们可以进行数据分析和建模,挖掘数据中的价值。 1. 数据统计与描述性分析 pandas可以帮助我们进行基础的统计...
classSolution(object):deffindDuplicates(self, nums):""":type nums: List[int] :rtype: List[int]"""res=nums[:] res.sort()foriinnums:ifnums.count(i)==1: res.remove(i)#for j in res:#res.remove(j)#return resres=res[::2]returnres 当然后来我尝试过加入一个空数组来存放数据,如上的...
提示: “优化此 Python 函数以实现最大效率。分析其时间复杂度,并使用更好的算法或数据结构提出改进建议。 代码: def find_duplicates(ARR): 重复项 = [] 对于 i in range(len(arr)): 对于 range(i + 1, len(arr) 中的 j): 如果 arr[i] == arr[j] 和 arr[i] 不重复: duplicates.append(arr...
SetsFast lookups without duplicatesIdeal for situations where uniqueness is crucial, and fast membership testing is required. DictionariesKey-value lookups (faster than lists)Perfect for mapping keys to values, offering fast access times and efficient insertion and deletion operations. ...
df.drop_duplicates(inplace=True) # 打印清洗后的数据 print("清洗后的数据:") print(df) 四、数据存储与读取 为了便于数据管理,我们将抓取的数据存储到数据库中。 1. 使用SQLite存储数据 SQLite是轻量级的数据库,适合小规模数据的存储。 python 复制代码 ...
Duplicates get a 'Y' and none Duplicates get 'N'. import arcpy #find Duplicate records, add Y or N in updateFeild inShapefile = 'VacantLots' checkField = "P_ID" updateField = "Count" with arcpy.da.SearchCursor(inShapefile, [checkField]) as rows: values = [r[0] for r in rows]...
Fclones- One of the fastest tools to find duplicates; it is written also in Rust Rmlint- Nice console interface and also is feature packed RdFind- Fast, but written in C++ ¯\_(ツ)_/¯ Contributions to this repository are welcome. ...
deduplidog --work-dir /home/user/duplicates --original-dir /media/disk/origs --ignore-date --rename --set-both-to-older-date --log-level=10 Find files by size, ignoring: date, crc32 Duplicates from the work dir at 'home' would be (if execute were True) renamed (prefixed with ...