#B3981. JSFuck Code Generation
JSFuck Code Generation
JSFuck Code Generation
This problem is inspired by the famous JSFuck challenge. You are given an integer \(n\) and you have to generate a snippet of JavaScript code (using only the 6 characters ( ) + [ ] !
) such that when the code is executed, it evaluates exactly to the integer \(n\).
For example, note that in JavaScript, automatic type conversion allows expressions such as +![]
to equal \(0\) (because ![]
is false
and +false
is \(0\)), and +!![]
to equal \(1\) (since !![]
is true
and +true
is \(1\)).
Using these ideas, any non-negative integer \(n\) can be built up using exactly these characters.
Your task is to generate such a JSFuck snippet for the given integer \(n\). The generated JavaScript code must consist exclusively of the characters ( ) + [ ] !
and must, when executed, reveal the integer \(n\) as its result.
Note: You do not need any in-depth knowledge of JavaScript to solve this problem.
inputFormat
The input consists of a single line with one non-negative integer \(n\) (where \(0 \le n \le 10^4\)).
outputFormat
Output a single line containing a valid JavaScript code snippet that uses only the characters ( ) + [ ] !
which, when executed, evaluates to \(n\).
For example:
- For \(n = 0\), output should be:
+![]
- For \(n = 1\), output should be:
+!![]
- For \(n = 3\), one valid output is:
+!![]+(+!![])+(+!![])
sample
0
+![]