Great thoughts on the first one

synchronized... This would could have different man's. E.g same speed, or they started at the same time from their starting points... The first, but the second, one is not necessary. 

所有跟帖： 

• 第一題是簡單兩人相向走題。第二是從極地到赤道，類似第一題得到的點連在一起成曲線，兩個半球各有一條。第三題不知道， -dhyang_wxc- ♂ (74 bytes) () 11/24/2023 postreply 06:25:43

• 思路很好，再深入一下就解決了。 -大醬風度- ♂ (0 bytes) () 11/24/2023 postreply 09:16:57

• "Synchronized " just means they start the same time, -中間小謝- ♂ (277 bytes) () 11/24/2023 postreply 08:38:21

• 棒！謝謝確認！ -大醬風度- ♂ (0 bytes) () 11/24/2023 postreply 09:05:03