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94 lines
3.2 KiB
Markdown
94 lines
3.2 KiB
Markdown
# [2037. Minimum Number of Moves to Seat Everyone](https://leetcode.com/problems/minimum-number-of-moves-to-seat-everyone/)
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## 题目
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There are n seats and n students in a room. You are given an array seats of length n, where seats[i] is the position of the ith seat. You are also given the array students of length n, where students[j] is the position of the jth student.
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You may perform the following move any number of times:
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- Increase or decrease the position of the ith student by 1 (i.e., moving the ith student from position x to x + 1 or x - 1)
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Return the minimum number of moves required to move each student to a seat such that no two students are in the same seat.
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Note that there may be multiple seats or students in the same position at the beginning.
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**Example 1:**
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Input: seats = [3,1,5], students = [2,7,4]
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Output: 4
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Explanation: The students are moved as follows:
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- The first student is moved from from position 2 to position 1 using 1 move.
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- The second student is moved from from position 7 to position 5 using 2 moves.
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- The third student is moved from from position 4 to position 3 using 1 move.
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In total, 1 + 2 + 1 = 4 moves were used.
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**Example 2:**
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Input: seats = [4,1,5,9], students = [1,3,2,6]
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Output: 7
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Explanation: The students are moved as follows:
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- The first student is not moved.
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- The second student is moved from from position 3 to position 4 using 1 move.
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- The third student is moved from from position 2 to position 5 using 3 moves.
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- The fourth student is moved from from position 6 to position 9 using 3 moves.
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In total, 0 + 1 + 3 + 3 = 7 moves were used.
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**Example 3:**
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Input: seats = [2,2,6,6], students = [1,3,2,6]
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Output: 4
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Explanation: Note that there are two seats at position 2 and two seats at position 6.
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The students are moved as follows:
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- The first student is moved from from position 1 to position 2 using 1 move.
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- The second student is moved from from position 3 to position 6 using 3 moves.
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- The third student is not moved.
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- The fourth student is not moved.
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In total, 1 + 3 + 0 + 0 = 4 moves were used.
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**Constraints:**
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- n == seats.length == students.length
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- 1 <= n <= 100
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- 1 <= seats[i], students[j] <= 100
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## 题目大意
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一个房间里有 n 个座位和 n 名学生，房间用一个数轴表示。给你一个长度为 n 的数组 seats，其中 seats[i] 是第 i 个座位的位置。同时给你一个长度为 n 的数组 students ，其中 students[j] 是第 j 位学生的位置。
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你可以执行以下操作任意次：
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增加或者减少第 i 位学生的位置，每次变化量为 1（也就是将第 i 位学生从位置 x 移动到 x + 1或者 x - 1）
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请你返回使所有学生都有座位坐的最少移动次数，并确保没有两位学生的座位相同。
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请注意，初始时有可能有多个座位或者多位学生在 同一位置。
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## 解题思路
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- 排序+模拟计算
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# 代码
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```go
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package leetcode
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import "sort"
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func minMovesToSeat(seats []int, students []int) int {
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sort.Ints(seats)
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sort.Ints(students)
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n := len(students)
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moves := 0
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for i := 0; i < n; i++ {
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moves += abs(seats[i], students[i])
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}
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return moves
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}
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func abs(a, b int) int {
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if a > b {
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return a - b
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}
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return b - a
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}
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``` |