{ "data": { "question": { "questionId": "2114", "questionFrontendId": "1986", "categoryTitle": "Algorithms", "boundTopicId": 958638, "title": "Minimum Number of Work Sessions to Finish the Tasks", "titleSlug": "minimum-number-of-work-sessions-to-finish-the-tasks", "content": "
There are n
tasks assigned to you. The task times are represented as an integer array tasks
of length n
, where the ith
task takes tasks[i]
hours to finish. A work session is when you work for at most sessionTime
consecutive hours and then take a break.
You should finish the given tasks in a way that satisfies the following conditions:
\n\nGiven tasks
and sessionTime
, return the minimum number of work sessions needed to finish all the tasks following the conditions above.
The tests are generated such that sessionTime
is greater than or equal to the maximum element in tasks[i]
.
\n
Example 1:
\n\n\nInput: tasks = [1,2,3], sessionTime = 3\nOutput: 2\nExplanation: You can finish the tasks in two work sessions.\n- First work session: finish the first and the second tasks in 1 + 2 = 3 hours.\n- Second work session: finish the third task in 3 hours.\n\n\n
Example 2:
\n\n\nInput: tasks = [3,1,3,1,1], sessionTime = 8\nOutput: 2\nExplanation: You can finish the tasks in two work sessions.\n- First work session: finish all the tasks except the last one in 3 + 1 + 3 + 1 = 8 hours.\n- Second work session: finish the last task in 1 hour.\n\n\n
Example 3:
\n\n\nInput: tasks = [1,2,3,4,5], sessionTime = 15\nOutput: 1\nExplanation: You can finish all the tasks in one work session.\n\n\n
\n
Constraints:
\n\nn == tasks.length
1 <= n <= 14
1 <= tasks[i] <= 10
max(tasks[i]) <= sessionTime <= 15
你被安排了 n
个任务。任务需要花费的时间用长度为 n
的整数数组 tasks
表示,第 i
个任务需要花费 tasks[i]
小时完成。一个 工作时间段 中,你可以 至多 连续工作 sessionTime
个小时,然后休息一会儿。
你需要按照如下条件完成给定任务:
\n\n给你 tasks
和 sessionTime
,请你按照上述要求,返回完成所有任务所需要的 最少 数目的 工作时间段 。
测试数据保证 sessionTime
大于等于 tasks[i]
中的 最大值 。
\n\n
示例 1:
\n\n输入:tasks = [1,2,3], sessionTime = 3\n输出:2\n解释:你可以在两个工作时间段内完成所有任务。\n- 第一个工作时间段:完成第一和第二个任务,花费 1 + 2 = 3 小时。\n- 第二个工作时间段:完成第三个任务,花费 3 小时。\n\n\n
示例 2:
\n\n输入:tasks = [3,1,3,1,1], sessionTime = 8\n输出:2\n解释:你可以在两个工作时间段内完成所有任务。\n- 第一个工作时间段:完成除了最后一个任务以外的所有任务,花费 3 + 1 + 3 + 1 = 8 小时。\n- 第二个工作时间段,完成最后一个任务,花费 1 小时。\n\n\n
示例 3:
\n\n输入:tasks = [1,2,3,4,5], sessionTime = 15\n输出:1\n解释:你可以在一个工作时间段以内完成所有任务。\n\n\n
\n\n
提示:
\n\nn == tasks.length
1 <= n <= 14
1 <= tasks[i] <= 10
max(tasks[i]) <= sessionTime <= 15
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