Automation Test Engineer Lead Interview Questions and Answers

A program in Python to read data and save it to Excel.

• Import the 'pandas' library to handle data manipulation.

• Use the 'read_csv' function to read the data from a CSV file.

• Create a DataFrame object to store the data.

• Use the 'to_excel' function to save the data to an Excel file.

Sort an array of 0s, 1s, and 2s in linear time complexity.

• Use three pointers to keep track of the positions of 0s, 1s, and 2s in the array.

• Iterate through the array and swap elements based on their values and the pointers.

• Example: Input array = ['1', '0', '2', '1', '0'], Output array = ['0', '0', '1', '1', '2']