Answer 1

++༒«ᵛ ⁱ ⁿ ᵃ ʸ ᵃ ᵏ»༒++
I agree with Slick, as the linked SO thread suggest, check the return value from `scanf` before using the input buffer for whatever needs.

Additionally, try to initialize the char array like `char x[256] = {0};`. This way the array will be populated with null character.

Why I'm suggesting this? there is a *possibility* that those weird characters are already there before the array is passed as argument to `scanf` because the array was not initialized. Even better, print each character in <x> casted as integer to verify that they were valid (according to the scanset defined).

P.S. I don't use DCoder.

Answer 2

Not sure, thia one takes a single word and prints it. Input: hello Output:hello
https://code.sololearn.com/cL26SeAN02WL/?ref=app

Answer 3

Well i can see and assumed you just wanted upper case and numbers. But read this: guys code was stopped by a '\n' when checking for ["aeiou"]
https://stackoverflow.com/questions/33320729/for-scanf-why-is-negated-scanset-n-showing-correct-output-for-n-bu

Answer 4

What were you looking for? With that code, youre able to enter upper, lower case, or number and it will print no problem.