Accenture Interview Question for Developer Program Engineers


Country: United States
Interview Type: Written Test




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0
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Can the following be a case: 2,2,2,3,4,6,7,8,9,9,9,10,A?

Highlighted points:
1. '5' is missing .
2. If we discard (2,2,2) then it would return false. Even if 'A' is converted into '5'.
Alternatively, If we discard (2,2) and then (2,3,4) , then it would return true.

- Pooja Basia September 26, 2013 | Flag Reply
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right, that's why a greedy approach will most likely fail. i think we need to go for dynamic programming. there are only 13 cards

- Miguel Oliveira September 26, 2013 | Flag
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0
of 0 vote

no

- rj September 26, 2013 | Flag Reply
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-1
of 1 vote

you can iterate through the list one checking inadvance with its 3 successor in the list.
if both consecutive it same, then you can discard this, similarly if three consecutive is incremental then discard them.

if you find 'A', then replace with the previous card and assume that can be discarded.

this can be done in O(n). just one iteration of the list.

- sjain September 26, 2013 | Flag Reply
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0
of 0 votes

such greedy approach is incorrect. see Pooja's example

- Miguel Oliveira September 26, 2013 | Flag


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