{"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":"08aae9c5-f52a-53a0-a052-6eaeaecc919c","task_key":"default--test--462","task_revision_id":"1","upstream_id":"462","short_description":"Given a numpy array, I wish to remove the adjacent (before removing) duplicate…","config":"default","split":"test","body":"{\"library\":\"Numpy\",\"prompt\":\"Problem:\\n\\nGiven a numpy array, I wish to remove the adjacent (before removing) duplicate non-zero value and all the zero value.\\nFor instance, for an array like that: [0,0,1,1,1,2,2,0,1,3,3,3], I'd like to transform it to: [1,2,1,3]. Do you know how to do it?\\nI just know np.unique(arr) but it would remove all the duplicate value and keep the zero value. Thank you in advance!\\nA:\\n<code>\\nimport numpy as np\\na = np.array([0, 0, 1, 1, 1, 2, 2, 0, 1, 3, 3, 3])\\n\\n</code>\\nresult = ... # 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":[]}