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My bitbucket password is correct because I can easily login with this password. When I try to push a project or file to bitbucket it shows Invalid credentials error.

I saw many questions on SO regarding this issue and none of them was answered (or the solution doesn't work), I don't know why. People are having this error continuously but no solution is being provided. And from past few days even I'm encountering this error (Note: It seems to be working fine on my physical device (not while debugging, it works on only if I release it), but not on android emulator, so I'm pretty sure my internet is working fine):

Here is an example, where column is assigned when the row is a dictionary key: https://stackoverflow.com/a/20250996/12603542

What I am looking for is case, where column is assigned when the row contains a dictionary key.

For example (based on example above):

I have the dataframe that has employees, and their level.

I was never good at maths in school and I realized that I actually need the opposite of pow(base, exponent) functions which powers some number by some factor like 2 ^ 4 = 16

Searching for answers I found that logarithm log() should be the opposite of power. Now, I've found that to write e.g. "log 2 of 32" would in code look like log(32) / log(2)... but how do you translate this following problem into logarithm?

I'm going to write a quick C program to print index table where all alphabetical characters are going to be printed assigned to each index starting from 0 to 26 ^ DIGITS.

Assuming DIGITS are set to 1, table will only be of size 26 (the length of alphabet from A to Z) in format index[0] = A, index[1] = B, ... ... index[25] = Z. The count of DIGITS gives 26 ^ DIGITS combinations.

Now, I have this code already written:

Yes I know there are a number of questions (e.g. (0) or (1)) which seem to ask the same, but AFAICS none really answers what I want.

What I want is, to replace any occurrence of a newline (LF) with the string \n, with no implicitly assumed newlines... and this with POSIX only utilities (and no GNU extensions or Bashisms) and input read from stdin with no buffering of that is desired.

So for example:

• printf 'foo' | magic should give foo
• printf 'foo\n' | magic should give foo\n
• printf 'foo\n\n' | magic should give foo\n\n

The usually given answers, don't do this, e.g.:

• awk
  printf 'foo' | awk 1 ORS='\\n gives foo\n, whereas it should give just foo
  so adds an \n when there was no newline.
• sed
  would work for just foo but in all other cases, like:
  printf 'foo\n' | sed ':a;N;$!ba;s/\n/\\n/g' gives foo, whereas it should give foo\n
  misses one final newline.
  Since I do not want any sort of buffering, I cannot just look whether the input ended in an newline and then add the missing one manually.
  And anyway... it would use GNU extensions.
  sed -z 's/\n/\\n/g'
  does work (even retains the NULs correctly), but again, GNU extension.
• tr
  can only replace with one character, whereas I need two.

The only working solution I'd have so far is with perl:
perl -p -e 's/\n/\\n/'
which works just as desired in all cases, but as I've said, I'd like to have a solution for environments where just the basic POSIX utilities are there (so no Perl or using any GNU extensions).

Thanks in advance.

[Editing this question completely] Thank you , for those who helped in building the Periodic Table successfully . As I completed it , I tried to link it with another of my project E-Search , which acts like Google and fetches answers , except that it will fetch me the data of the Periodic Table .

But , I got a problem - not with the searching but with the layout . I'm trying to layout the x-scrollbar in my canvas which will display results regarding the search . However , it is not properly done . Can anyone please help ?

Below here is my code :

I have a dataframe with 2 categorical columns (col1, col2).