S.P.A.R.K's blog

What is the difference between clear() and fill()
By S.P.A.R.K, history, 4 years ago, In English

I was trying to solve 1529C - Parsa's Humongous Tree.

i used the below code which gave memory limit exceeded.

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then i used fill() instead of clear() function which was also used in the tutorials. And i got my soln ac.

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I used clear() in first code whereas fill() in the later one. WHAT IS THE DIFFERENCE BETWEEN THOSE TWO??

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4 years ago, # |
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The graph is 1-indexed but you are not clearing adj[n]. That's why you get MLE.

If you change for(int i = 0; i < n ; i ++) to for(int i = 1 ; i <= n ; i ++) you'll get AC.

modified code

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4 years ago, # |
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Thanks a lot.

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