{"kind":"task","effective_mode":"full","benchmark":{"kind":"benchmark","effective_mode":"full","slug":"ds-1000","formal_name":"DS-1000","introduction":"DS-1000 builds 1,000 data-science problems from real StackOverflow questions across seven libraries including NumPy, Pandas and Matplotlib. The problems are perturbed so that recalling the original answer does not solve them.","introduction_ja":"","introduction_en":"","category":"Category not supplied","task_count":null,"acquisition_status":"Acquisition status not supplied","official_url":"https://ds1000-code-gen.github.io/","indexing_mode":"index","profile":{"resources":[],"task_format":"","scoring":"","metric":"","size":"","answer_access":"","license":"","citation":"","maintainer":"","released":"","why_hard":"","related":[],"history":"","construction":"","limitations":"","saturation":"","scores":[]}},"task_id":"d41aee24-9a1f-5e1d-94f0-692ac212468d","task_key":"default--test--435","task_revision_id":"1","upstream_id":"435","short_description":"I have a 2D array `a` to represent a many-many mapping :","config":"default","split":"test","body":"{\"library\":\"Numpy\",\"prompt\":\"Problem:\\nI have a 2D array `a` to represent a many-many mapping :\\n0   3   1   3\\n3   0   0   0\\n1   0   0   0\\n3   0   0   0\\nWhat is the quickest way to 'zero' out the second row and the first column?\\nA:\\n<code>\\nimport numpy as np\\na = np.array([[0, 3, 1, 3], [3, 0, 0, 0], [1, 0, 0, 0], [3, 0, 0, 0]])\\n</code>\\na = ... # put solution in this variable\\nBEGIN SOLUTION\\n<code>\\n\"}","display_format":"code","language":"","answer_status":"published","assets":[],"source_url":"https://ds1000-code-gen.github.io/","history":"initial import","indexing_mode":"index","subproblems":[],"grids":[]}