CaP_TaIn's blog

Unable to Find My Mistake in Problem D of Today's Contest
By CaP_TaIn, 2 months ago, In English

During solving this problem(Problem Link) I first used set for maintaing count of the cases but it was giving wrong ans on test5 but when I used integer for count it passed all test cases and i'm unable to find why using set giving wrong ans.

here are my submissions : 1)using set:286839990 2)using integer:286840330

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2 months ago, # |
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Auto comment: topic has been updated by CaP_TaIn (previous revision, new revision, compare).

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2 months ago, # |
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to me both seems similar and correct. I'm also interested to know why set one fails

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2 months ago, # |
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Your submissions have differences other than counting with set/int. In the set submission, you have

if (str.substr(r, 2) == "LR")

and in the integer one, you have

if (str.substr(r, 2) == "LR" && mx[r]!=r+1)

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    2 months ago, # ^ |
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    yeah,i thought that if the value is not in set erasing it will like doing nothing but after you pointed out this i tried after checking if it present in set or not then if it's present then i deleted and it worked...so i think erasing not present value in set was giving error...Thanks man!!!

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