#data-structures
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Problem description & analysis: A certain database table describes the payment cycle for multiple projects (IDs), with one payment cycle consisting of...
Problem description & analysis: Here below is a data table: Task: Now we want to transpose the M columns of a two-dimensional table to M rows, and...
Problem description & analysis: Here below is a data table: Task: Now we want to convert the table to the form as shown in the figure below, and list...
Problem description & analysis: Here below is a data table: Task: Group the data in the first column, and calculate the sum of the values in the...
Problem description & analysis: Here below is a data table: Task: Rank the students by math score and concatenate the names of students having the...
Problem description & analysis: Here below is a data table: Task: Calculate the ranking of data (in descending order) by the sum of three columns...
