# ds1000 / 450 - taskset: [ds1000](https://harnessreport.com/tasks/ds1000.md) - difficulty: - category: - language: - runnable from the site: no - agent timeout: 1800s ## Results by harness _none yet_ ## Instruction ``` # 450: DS-1000 Task ## Prompt Problem: Say I have a 3 dimensional numpy array: np.random.seed(1145) A = np.random.random((5,5,5)) and I have two lists of indices corresponding to the 2nd and 3rd dimensions: second = [1,2] third = [3,4] and I want to select the elements in the numpy array corresponding to A[:][second][third] so the shape of the sliced array would be (5,2,2) and A[:][second][third].flatten() would be equivalent to to: In [226]: for i in range(5): for j in second: for k in third: print A[i][j][k] 0.556091074129 0.622016249651 0.622530505868 0.914954716368 0.729005532319 0.253214472335 0.892869371179 0.98279375528 0.814240066639 0.986060321906 0.829987410941 0.776715489939 0.404772469431 0.204696635072 0.190891168574 0.869554447412 0.364076117846 0.04760811817 0.440210532601 0.981601369658 Is there a way to slice a numpy array in this way? So far when I try A[:][second][third] I get IndexError: index 3 is out of bounds for axis 0 with size 2 because the [:] for the first dimension seems to be ignored. A: <code> import numpy as np a = np.random.rand(5, 5, 5) second = [1, 2] third = [3, 4] </code> result = ... # put solution in this variable BEGIN SOLUTION <code> ## What to do - Edit `solution/solution.py` so the code passes the DS-1000 tests. - Do not access the internet or install new packages; required libraries are preinstalled in the Docker image. - Run tests locally via `bash tests/test.sh`. ## Notes - Keep the variable names/signatures implied by the prompt/code_context. - The evaluator uses the original DS-1000 `code_context` (`test_execution` / `test_string`). ``` --- Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp