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Diffstat (limited to 'challenge-263/jeanluc2020/python/ch-1.py')
| -rwxr-xr-x | challenge-263/jeanluc2020/python/ch-1.py | 56 |
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diff --git a/challenge-263/jeanluc2020/python/ch-1.py b/challenge-263/jeanluc2020/python/ch-1.py new file mode 100755 index 0000000000..ebfafa7558 --- /dev/null +++ b/challenge-263/jeanluc2020/python/ch-1.py @@ -0,0 +1,56 @@ +#!/usr/bin/python3 +# https://theweeklychallenge.org/blog/perl-weekly-challenge-263/#TASK1 +# +# Task 1: Target Index +# ==================== +# +# You are given an array of integers, @ints and a target element $k. +# +# Write a script to return the list of indices in the sorted array where the +# element is same as the given target element. +# +## Example 1 +## +## Input: @ints = (1, 5, 3, 2, 4, 2), $k = 2 +## Output: (1, 2) +## +## Sorted array: (1, 2, 2, 3, 4, 5) +## Target indices: (1, 2) as $ints[1] = 2 and $k[2] = 2 +# +## Example 2 +## +## Input: @ints = (1, 2, 4, 3, 5), $k = 6 +## Output: () +## +## No element in the given array matching the given target. +# +## Example 3 +## +## Input: @ints = (5, 3, 2, 4, 2, 1), $k = 4 +## Output: (4) +## +## Sorted array: (1, 2, 2, 3, 4, 5) +## Target index: (4) as $ints[4] = 4 +# +############################################################ +## +## discussion +## +############################################################ +# +# Straight forward steps: sort the input array, use an index to +# walk the array and remember the instances where $ints[$i] == $k. + +def target_index(ints: list, k: int) -> None: + print("Input: (", ", ".join(str(x) for x in ints), ")", sep="") + result = [] + sorted_ints = sorted(ints) + for i in range(len(sorted_ints)): + if sorted_ints[i] == k: + result.append(i) + print("Output: (", ", ".join(str(x) for x in result), ")", sep="") + +target_index( [1, 5, 3, 2, 4, 2], 2); +target_index( [1, 2, 4, 3, 5], 6); +target_index( [5, 3, 2, 4, 2, 1], 4); + |
