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72 lines
3.6 KiB
Markdown
72 lines
3.6 KiB
Markdown
---
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id: 6a0dcd03ee4e68698080ef69
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title: "Challenge 305: Idea Rankings"
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challengeType: 28
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dashedName: challenge-305
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---
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# --description--
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Given a 2D array where each inner array contains (in this order) an idea name, an optimistic estimate, a realistic estimate, and a pessimistic estimate (in days), return an array of the idea names sorted by expected time to completion, shortest first.
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Calculate the expected time to completion for each idea using the following formula:
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- `expected = ((optimistic + 4 * realistic + pessimistic) / 6) * length of idea name`
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# --hints--
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`analyzeIdeas([["Add logging", 2, 5, 15], ["SEO optimization", 4, 8, 20], ["Fix bug", 1, 3, 5]])` should return `["Fix bug", "Add logging", "SEO optimization"]`.
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```js
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assert.deepEqual(analyzeIdeas([["Add logging", 2, 5, 15], ["SEO optimization", 4, 8, 20], ["Fix bug", 1, 3, 5]]), ["Fix bug", "Add logging", "SEO optimization"]);
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```
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`analyzeIdeas([["Dark mode", 1, 3, 8], ["Real-time collaboration feature", 6, 12, 20], ["Add tooltip", 1, 2, 4]])` should return `["Add tooltip", "Dark mode", "Real-time collaboration feature"]`.
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```js
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assert.deepEqual(analyzeIdeas([["Dark mode", 1, 3, 8], ["Real-time collaboration feature", 6, 12, 20], ["Add tooltip", 1, 2, 4]]), ["Add tooltip", "Dark mode", "Real-time collaboration feature"]);
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```
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`analyzeIdeas([["Update user profile page", 3, 7, 14], ["Add pagination", 2, 5, 10], ["Add tags", 2, 3, 6], ["Fix login bug", 1, 4, 8]])` should return `["Add tags", "Fix login bug", "Add pagination", "Update user profile page"]`.
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```js
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assert.deepEqual(analyzeIdeas([["Update user profile page", 3, 7, 14], ["Add pagination", 2, 5, 10], ["Add tags", 2, 3, 6], ["Fix login bug", 1, 4, 8]]), ["Add tags", "Fix login bug", "Add pagination", "Update user profile page"]);
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```
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`analyzeIdeas([["Migrate database", 14, 25, 40], ["Add chat assistant", 8, 15, 24], ["Redesign onboarding flow", 3, 7, 13], ["Add language support", 6, 11, 18]])` should return `["Redesign onboarding flow", "Add language support", "Add chat assistant", "Migrate database"]`.
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```js
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assert.deepEqual(analyzeIdeas([["Migrate database", 14, 25, 40], ["Add chat assistant", 8, 15, 24], ["Redesign onboarding flow", 3, 7, 13], ["Add language support", 6, 11, 18]]), ["Redesign onboarding flow", "Add language support", "Add chat assistant", "Migrate database"]);
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```
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`analyzeIdeas([["Add email notifications", 3, 7, 10], ["Migrate deployment flow", 6, 10, 16], ["Add push notifications", 2, 6, 10], ["Optimize continuous integration", 5, 8, 15], ["Analyze user patterns", 5, 10, 18], ["Create onboarding curriculum", 6, 15, 25]])` should return `["Add push notifications", "Add email notifications", "Analyze user patterns", "Migrate deployment flow", "Optimize continuous integration", "Create onboarding curriculum"]`.
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```js
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assert.deepEqual(analyzeIdeas([["Add email notifications", 3, 7, 10], ["Migrate deployment flow", 6, 10, 16], ["Add push notifications", 2, 6, 10], ["Optimize continuous integration", 5, 8, 15], ["Analyze user patterns", 5, 10, 18], ["Create onboarding curriculum", 6, 15, 25]]), ["Add push notifications", "Add email notifications", "Analyze user patterns", "Migrate deployment flow", "Optimize continuous integration", "Create onboarding curriculum"]);
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```
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# --seed--
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## --seed-contents--
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```js
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function analyzeIdeas(ideas) {
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return ideas;
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}
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```
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# --solutions--
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```js
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function analyzeIdeas(ideas) {
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return ideas
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.map(([name, optimistic, realistic, pessimistic]) => ({
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name,
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expected: ((optimistic + 4 * realistic + pessimistic) / 6) * name.length
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}))
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.sort((a, b) => a.expected - b.expected)
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.map(idea => idea.name);
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}
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```
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