And one can invent those libraries for another language and can match Arc in the challenge using those invented libraries -- at least you don't seem to be denying this.

Depends on the language, obviously. It seems unlikely you could in C, for example. Presumably the problems you'd encounter would gradually decrease as the language grew more powerful. That's why I phrased the problem as a challenge. I was curious to see what happened when you tried to solve this very simple problem using existing language/library options.