where is my question
TOPIC The London Olympics are on the way, and the fish are swimming hard to prepare for the swim. Poor fish don't know that fish can't compete in the human Olympics. On this day, small fish swim to their own time to do the precise timing (timing of ontology by 24-hour computing), it found itself from a when b points have been able to swim to the c d, would you please help small fish calculate, swam for a total of how much time it day? Small fish swim very hard, you do not miscalculate.