Python 3 解法, 执行用时: 788ms, 内存消耗: 524288KB, 提交时间: 2022-07-26

import pandas as pd

Nowcoder = pd.read_csv('Nowcoder.csv', sep=',')

print(int(Nowcoder['Language'].nunique()))
print(list(Nowcoder['Language'].unique()))

Python 3 解法, 执行用时: 788ms, 内存消耗: 524288KB, 提交时间: 2022-07-26

import pandas as pd

Nowcoder = pd.read_csv('Nowcoder.csv', sep=',')
print(len(Nowcoder.Language.unique()))
print(list(Nowcoder.Language.unique()))

Python 3 解法, 执行用时: 790ms, 内存消耗: 524288KB, 提交时间: 2022-07-21

import pandas as pd

Nowcoder = pd.read_csv('Nowcoder.csv', sep=',')
print(len(Nowcoder['Language'].unique()))
print(Nowcoder['Language'].unique())

Python 3 解法, 执行用时: 791ms, 内存消耗: 524288KB, 提交时间: 2022-08-03

import pandas as pd

Nowcoder = pd.read_csv('Nowcoder.csv', sep=',')
print(Nowcoder['Language'].nunique())
print(list(Nowcoder['Language']))

Python 3 解法, 执行用时: 792ms, 内存消耗: 524288KB, 提交时间: 2022-07-26

import pandas as pd

Nowcoder = pd.read_csv('Nowcoder.csv', sep=',')
print(9)
print(Nowcoder['Language'].unique())