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2024-09-03 v. 6.6.1: added "167. Two Sum II - Input Array Is Sorted"
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# frozen_string_literal: true | ||
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||
# https://leetcode.com/problems/two-sum-ii-input-array-is-sorted/ | ||
# @param {Integer[]} numbers | ||
# @param {Integer} target | ||
# @return {Integer[]} | ||
def two_sum167(numbers, target) | ||
start = 0 | ||
nd = numbers.size - 1 | ||
until start == nd | ||
sum = numbers[start] + numbers[nd] | ||
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||
if sum > target | ||
nd -= 1 | ||
elsif sum < target | ||
start += 1 | ||
else | ||
break | ||
end | ||
end | ||
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||
[start + 1, nd + 1] | ||
end |
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# frozen_string_literal: true | ||
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require_relative '../test_helper' | ||
require_relative '../../lib/medium/167_two_sum_ii_input_array_is_sorted' | ||
require 'minitest/autorun' | ||
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class TwoSumIIInputArrayIsSortedTest < ::Minitest::Test | ||
def test_default_one | ||
assert_equal( | ||
[1, 2], | ||
two_sum167( | ||
[2, 7, 11, 15], | ||
9 | ||
) | ||
) | ||
end | ||
|
||
def test_default_two | ||
assert_equal( | ||
[1, 3], | ||
two_sum167( | ||
[2, 3, 4], | ||
6 | ||
) | ||
) | ||
end | ||
|
||
def test_default_three | ||
assert_equal( | ||
[1, 2], | ||
two_sum167( | ||
[-1, 0], | ||
-1 | ||
) | ||
) | ||
end | ||
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||
def test_additional_one | ||
assert_equal( | ||
[2, 3], | ||
two_sum167( | ||
[5, 25, 75], | ||
100 | ||
) | ||
) | ||
end | ||
end |