Hello Codeforces why this code give me runtime error :
https://repl.it/repls/DeliriousVerifiableBruteforceprogramming
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Hello Codeforces why this code give me runtime error :
https://repl.it/repls/DeliriousVerifiableBruteforceprogramming
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Oh Hi, SuperLAVA!
You are trying to delete non existing characters by using
d.erase(j,j+1);
. You should used.erase(j,1);
. (See documentation of erase). And you are not updating n with the size of the string after deleting some characters. Here's your code after editing 41826992. But it's complexity is O(N^2) which can not pass for N=200'000. Have a nice day!