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进阶高级测试工程师

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全部文章（共152篇）

题解 | 矩阵和向量的点积

import numpy as np def matrix_vector_dot_product(matrix, vector): matrix_arr = np.array(matrix) vector_arr = np.array(vector) if matrix_a...

2025-03-02

1 40

题解 | 按行或列计算平均值

from typing import List, Union import numpy as np def calculate_matrix_mean(matrix: List[List[Union[int, float]]], mode: str) -> List[float]: ...

2025-03-02

0 39

题解 | 重塑矩阵

from re import A from typing import List, Tuple, Union import numpy as np def reshape_matrix( a: List[List[Union[int, float]]], new_shape: Tuple...

2025-03-02

0 32

题解 | 矩阵和向量的点积

def matrix_vector_dot_product(matrix, vector): if not matrix or not vector: return -1 # 检查矩阵每行的列数是否一致 cols = len(matrix[0]) fo...

2025-03-02

0 40

题解 | 三角形最小路径和

/** * 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可 * * * @param triangle int整型二维数组 * @return int整型 */ export function minTrace(triangle: number[][]): nu...

2025-03-01

0 24

题解 | 总人数超过5的等级

import pandas as pd df = pd.read_csv("Nowcoder.csv", sep=",") df_grouped = df.groupby("Level").size() df_grouped = df_g...

2025-02-25

0 32

题解 | 牛客网用户练习的平均次日留存率

import pandas as pd df = pd.read_csv('nowcoder.csv', sep=',') df['date'] = pd.to_datetime(df['date']).dt.date df1 = df.copy() df1['date'] = df1['d...

2025-02-25

0 39

题解 | 统计牛客网用户的名字长度

import pandas as pd df = pd. read_csv('Nowcoder.csv') print(df['Name'].apply(len))

2025-02-25

0 42

题解 | 牛客网用户最高的正确率

import pandas as pd df = pd.read_csv('Nowcoder.csv') sub = df[df['Num_of_exercise'] > 10] ds = round(sub['Num_of_exercise']/sub['Number_of_submi...

2025-02-25

0 33

题解 | 大佬用户成就值比例

import pandas as pd df = pd.read_csv('Nowcoder.csv') sub_df = df[df['Level'] ==7] seven = sub_df['Achievement_value']/df['Achievement_value'].sum()...

2025-02-25

0 30