Having a bit of trouble understanding how to run my code using a ProcessData wrapping function on hackerrank (node.js). It seems I can't drop a function with the parameters I have in the ProcessData wrapper without getting back ~no response on stdout~. How do I pass their input (a string of integers) in to my function and get a response of some sort so I can debug? Help would definitely be appreciated. Please see my function, the coding environment, the input & expected output below. Thanks!
For reference: https://www.hackerrank.com/challenges/array-left-rotation
/*
Input Format
The first line contains two space-separated integers
denoting the respective values of (the number of integers)
and (the number of left rotations you must perform).
The second line contains space-separated integers
describing the respective elements of the array's initial state.
*/
/*Environment with my code, below (how do I pass input as an argument to this function??
console.log or return the data, and get a response for debugging?)*/
function processData(input) {
//Enter your code here
var rotate = function(num,turns,ar){
var store = ar.slice(0, turns);
for(var i=0; i<store.length; i++){
ar.shift();
ar.push(store[i]);
}
return ar;
};
}
process.stdin.resume();
process.stdin.setEncoding("ascii");
_input = "";
process.stdin.on("data", function (input) {
_input += input;
});
process.stdin.on("end", function () {
processData(_input);
});
You need use process.stdout.write. For example:
function processData(input) {
//Enter your code here
process.stdout.write('5 1 2 3 4');
}
instead use
let input = 4; //4 is an integer variable
function processData(input) {
//before outputing the integre you need to convert it to string using toString();
process.stdout.write(input.toString().trim());
}
//Note the output is converted to string
Output: 4