Can anybody help me with question from codeforces Div2 contest?

help
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Question Link : Problem - B - Codeforces
Is there any algorithms used ?

2

this is just implementation bassed problem with greedy strategy see the tags

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Change all +ve numbers to -ve (ie -a-1),
If n is odd find the largest element (magnitude wise) and change it to -a-1.
Dont forget to Handle the cases where answer can be zero. ie 0 0 0, or -1 0 -1 etc…

PS: keep track of their index. You have to print it in the same order as they were given…

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Here’s my code for the problem, might help you. I think the code is easy enough for you to get it. try some raw inputs too.

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I want to learn that greedy .

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6

try questions on hackerearth

1 Like
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Thanks i will definitely check them .

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Dude… I gave you the solution: here

What did you not get ?

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Me too …
from here we can start…