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Commit 0ea9edb

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Merge pull request #1198 from 0xff-dev/2895
Add solution and test-cases for problem 2895
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# [2895.Minimum Processing Time][title]
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## Description
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You have a certain number of processors, each having 4 cores. The number of tasks to be executed is four times the number of processors. Each task must be assigned to a unique core, and each core can only be used once.
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You are given an array `processorTime` representing the time each processor becomes available and an array `tasks` representing how long each task takes to complete. Return the minimum time needed to complete all tasks.
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**Example 1:**
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```
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Input: processorTime = [8,10], tasks = [2,2,3,1,8,7,4,5]
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Output: 16
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Explanation:
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Assign the tasks at indices 4, 5, 6, 7 to the first processor which becomes available at time = 8, and the tasks at indices 0, 1, 2, 3 to the second processor which becomes available at time = 10.
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The time taken by the first processor to finish the execution of all tasks is max(8 + 8, 8 + 7, 8 + 4, 8 + 5) = 16.
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The time taken by the second processor to finish the execution of all tasks is max(10 + 2, 10 + 2, 10 + 3, 10 + 1) = 13.
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```
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**Example 2:**
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```
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Input: processorTime = [10,20], tasks = [2,3,1,2,5,8,4,3]
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Output: 23
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Explanation:
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Assign the tasks at indices 1, 4, 5, 6 to the first processor and the others to the second processor.
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The time taken by the first processor to finish the execution of all tasks is max(10 + 3, 10 + 5, 10 + 8, 10 + 4) = 18.
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The time taken by the second processor to finish the execution of all tasks is max(20 + 2, 20 + 1, 20 + 2, 20 + 3) = 23.
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```
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## 结语
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如果你同我一样热爱数据结构、算法、LeetCode,可以关注我 GitHub 上的 LeetCode 题解:[awesome-golang-algorithm][me]
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[title]: https://leetcode.com/problems/minimum-processing-time
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[me]: https://github.com/kylesliu/awesome-golang-algorithm
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package Solution
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import "sort"
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func Solution(processorTime []int, tasks []int) int {
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sort.Slice(tasks, func(i, j int) bool {
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return tasks[i] > tasks[j]
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})
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sort.Ints(processorTime)
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ans := 0
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index := 0
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for _, n := range processorTime {
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mm := max(tasks[index], tasks[index+1], tasks[index+2], tasks[index+3])
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index += 4
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ans = max(ans, n+mm)
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}
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return ans
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}
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package Solution
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import (
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"reflect"
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"strconv"
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"testing"
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)
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func TestSolution(t *testing.T) {
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// 测试用例
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cases := []struct {
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name string
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processorTime, tasks []int
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expect int
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}{
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{"TestCase1", []int{8, 10}, []int{2, 2, 3, 1, 8, 7, 4, 5}, 16},
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{"TestCase2", []int{10, 20}, []int{2, 3, 1, 2, 5, 8, 4, 3}, 23},
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}
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// 开始测试
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for i, c := range cases {
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t.Run(c.name+" "+strconv.Itoa(i), func(t *testing.T) {
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got := Solution(c.processorTime, c.tasks)
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if !reflect.DeepEqual(got, c.expect) {
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t.Fatalf("expected: %v, but got: %v, with inputs: %v %v",
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c.expect, got, c.processorTime, c.tasks)
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}
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})
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}
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}
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// 压力测试
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func BenchmarkSolution(b *testing.B) {
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}
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// 使用案列
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func ExampleSolution() {
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}

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