Dell Technologies Interview Question: C puzzle- There is a tower of... |

Interview Question

Associate Software Engineer Interview Bengaluru

C puzzle- There is a tower of some N storeys find the first

  floor from where when an egg is dropped may break.Use minimum number of eggs and minimum number of times u drop the eggs.

Interview Answer

2 Answers


It can be solved by binary search approach.He was satisfied with my answer

Interview Candidate on 20-Jul-2017

x(x+1)/2 = 100 => x=14 (start dropping from 14, if doesn't break, go on like 14+13, then 14+13+12...unti it becomes 100)
worst case : 14 (if one egg breaks in 14th, start dropping other from floor 1-13 nd if no where it breaks 14th is the threshold)

Ashutosh on 17-Sep-2017

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