spavanac

Spavanac

ID: spavanac

Difficulty: 1.5

CPU Time: 1 second

Memory: 1024 MB

Solution

One can simply adjust the minutes, and then hours, making corrections as necessary. One can first decrement M by 45; if this is negative, then we decrement H and add 60 to M, to represent how this time will look when crossing across hours. If H is now negative, add 24, since this is a time that has crossed days.