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| -rw-r--r-- | challenge-103/abigail/README.md | 1 | ||||
| -rw-r--r-- | challenge-103/abigail/python/ch-2.py | 71 |
2 files changed, 72 insertions, 0 deletions
diff --git a/challenge-103/abigail/README.md b/challenge-103/abigail/README.md index 8a14476af8..bbf2a50037 100644 --- a/challenge-103/abigail/README.md +++ b/challenge-103/abigail/README.md @@ -125,5 +125,6 @@ Output: ### Solutions * [Lua](lua/ch-2.lua) * [Perl](perl/ch-2.pl) +* [Python](python/ch-2.py) ### Blog diff --git a/challenge-103/abigail/python/ch-2.py b/challenge-103/abigail/python/ch-2.py new file mode 100644 index 0000000000..56f708220f --- /dev/null +++ b/challenge-103/abigail/python/ch-2.py @@ -0,0 +1,71 @@ +#!/opt/local/bin/python + +# +# See ../README.md +# + +# +# Run as python ch-2.py < input-file +# + +# +# We're reading a start time, the current time, and a file name +# from STDIN, separated by white space. The file contains the +# tracks played. +# + +import fileinput + +for line in fileinput . input (): + start_time, current_time, file_name = line . split () + + # + # You need a 64 bit integer for this; 32 bits of holds + # a five week vacation in milliseconds, but the author + # of the puzzle lives somewhere were people take 14 week + # holidays... + # + time_diff = (int (current_time) - int (start_time)) * 1000 + + # + # Parse the media file; store the track into an array tracks. + # + tracks = [] + total_time = 0 + for track in open (file_name, "r"): + play_time, title = track . strip () . split (",", 2) + play_time = int (play_time) + tracks . append ([play_time, title]) + total_time = total_time + play_time + + # + # We're not interested in playing full loops. + # + time_diff = time_diff % total_time + + # + # Find the current track playing. If $time_diff is less than the + # play time of the track, this is the track currently playing. If + # so, print the track name (with quotes, as given in the example -- + # although they don't belong there, as they're from the CSV encoding; + # for that reason, we won't deescape anything else either). Otherwise + # (track length is shorter than $time_diff), we subtrack the length + # of the track from $time_diff, and continue checking the next track. + # + for track in tracks: + if time_diff - track [0] < 0: + time_diff = int (time_diff / 1000) + hours = int (time_diff / 3600) + minutes = int ((time_diff % 3600) / 60) + seconds = time_diff % 60 + + if hours > 0: + format_str = "{0}\n{1:02d}:{2:02d}:{3:02d}" + else: + format_str = "{0}\n{2:02d}:{3:02d}" + + print (format_str . format (track [1], hours, minutes, seconds)) + break + else: + time_diff = time_diff - track [0] + |