Output:3 Explanation: Three pairs have a total duration divisible by 60: (time[0] = 30, time[2] = 150): total duration 180 (time[1] = 20, time[3] = 100): total duration 120 (time[1] = 20, time[4] = 40): total duration 60 Example 2: Input:[60,60,60] Output:3 Explanat...
Output:3 Explanation: Three pairs have a total duration divisible by 60: (time[0] = 30, time[2] = 150): total duration 180 (time[1] = 20, time[3] = 100): total duration 120 (time[1] = 20, time[4] = 40): total duration 60 1. 2. 3. 4. 5. 6. Example 2: Input:[60...
如果前面完成的所有课程的 duration 均小于等于当前的 duration,那么时间上并没有增加,所有没有必要替换;如果存在比当前course的duration大的课程,那么取其最大的那个课程进行替换,时间的收益是最大化的。而且进行替换后,time - max_pre_duration + cur_duration < time <= pre_endtime <= cur_endtime,所以取消...
544 Output Contest Matches 题意:给定n支队伍,你需要进行n//2组配对。给定1-n的排名,按照强对弱的原则匹配n//2组。并 难度:medium 解法:付费题。读了两遍才明白题目到底在问什么。名次1-n,按照(1,n)、(2,n-1)...之类进行强弱配对。然后按照一种递归嵌套的形式输出。实际的难点在于拼凑这个字符串,...
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