Problem Description
Midhat is a Network Security Engineer, based in Sarajevo. He is assigned to do some important
consultation projects around the globe in July and August 2013. It happened that Ramadhan (the
fasting month for Muslim) falls during these months for the year 2013. Midhat has to travel to
several cities – Istanbul, Kuala Lumpur, Tokyo, Melbourne, Sao Paolo and Chicago. Even
though it is permissible for Muslims not to fast when travelling, he prefers to continue fasting in
Ramadhan. Midhat has no problem on this matter except he needs to make himself awake for
sahur (early breakfast before dawn) on his own, which he is used to be waked by his mother at
home.
Midhat wants to have his sahur 45 minutes before imsa’ (end time for taking sahur). He decided
to set his travelling alarm clock 45 minutes before imsa’, so that he can take his sahur in time,
make his Fajr prayer and ready to work early. Since he’s travelling to different parts of the
world, the imsa’ time differs from one city to another. Midhat wants to set his travelling clock to
wake him up on time for all the cities he visits. Help Midhat by writing a program that will take
one time stamp, in 24-hour notation, and print out a new time stamp, 45 minutes earlier, also in
24-hour notation.
Note: In 24-hour time notation, it starts with 0:00 (midnight) and ends with 23:59 (one minute
before midnight). In the input and output we'll ignore the leading zeros and colon for simplicity.
So 0:00 will be written as 0 0.
Input
The first line will contain number of test cases, T. After that T lines will follow, where each line
will contain exactly two integers H and M (0 ≤ H ≤ 23, 0 ≤ M ≤ 59) separated by a single space,
the input time in 24-hour notation. H denotes hours and M minutes .
Output
For each test case, the output contains a line in the format Case #x: followed by a sequence of
integers, where x is the case number (starting from 1) and output one line with exactly two
integers, the time 45 minutes before input time .
Sample Input
4
5 0
10 10
0 30
23 47
Sample Output
Case #1: 4 15
Case #2: 9 25
Case #3: 23 45
Case #4: 23 2
Untuk problem F ni hanya perlu masukkan jam dan minit. Kemudian minit tersebut kita tolakkan dengan 45, selepas dapat jawapannya kita bandingkan adakah minit tersebut kurang daripada 0. Jika kurang kita perlu tambahkan kepada 60, dan nilai jam kita tolak kepada 1. Jika nilai jam pula kurang daripada 0, kita perlu tambahkan 24.
Solution :