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### ghostrider08

#### Likes 7

 19 Going to the Track 5 Betsy and Patsy 56 All the King's Wine 5 Troll Toll 8 All Apples 45 The Sinking Island 28 12 Identical Balls

#### Ratings 6

 19 6 Going to the Track 8 2 Interview Question - Databases 56 10 All the King's Wine 4 2 Cracking the Safe 45 6 The Sinking Island 11 2 Measuring Up

#### Comments 4

 Interview Question - Databases Imagine your favorite sandbox. In this sandbox, you know exactly where you put your castle-building bucket with all the other tools and toys. When you need to build a castle, you'll know where to look for the needed utilities. context Going to the Track Isn't this this doable with 6 races? We divide the 25 horses into groups of 5 (= 5 races) and then we arrange the 6th race with the 5 winners competing. Therefore on the 1st, 2nd and 3rd place will be the three fastest horses from the pack. context Going to the Track Sorry, I rushed the answer. I was not considering the race with the 3 fastest horses in the lineup. context 12 Identical Balls Actually, you can find the lighter ball too. We select the first ball and compare it with the second. If they're equal (two balls are always identical from the three), the third ball is unique. Next, we compare the first one with the third one. It'll be either lighter or heavier. If it's lighter the third ball is lighter than the 11 remaining balls, otherwise we've found the heaviest ball. context