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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
Auto comment: topic has been updated by CaP_TaIn (previous revision, new revision, compare).
to me both seems similar and correct. I'm also interested to know why set one fails
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)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!!!