Robotic leveling Coding Challenge

solution.js

// Coding game challenge
// https://ide.codingame.com/21913565?id=6961426c38c52b3832ea4526f1e3554103a33c0

function solve(clawPos, boxes, boxInClaw) {
    // Write your code here
    // To debug: console.error('Debug messages...');

    // #1 Get all available boxes
    let sumOfBoxes = 0;
    let numOfStacks = boxes.length;
    boxes.map(item => sumOfBoxes += item);
    if(boxInClaw) sumOfBoxes += 1;
    
    
    // #2 Create a target - How the boxes should eventually be/look like
    let target = new Array(numOfStacks).fill(0);
    while(sumOfBoxes != 0){
        for(var i=0; i<numOfStacks; i++){
            if(sumOfBoxes != 0){
                target[i] += 1;
                sumOfBoxes -= 1;
            }
        }
    }

    // #3 At any position check if a boxed to be placed
    if(boxInClaw && boxes[clawPos] < target[clawPos]){
        return 'PLACE';
    }
    
    // #4 At any position check if a boxed to be picked
    if(!boxInClaw && boxes[clawPos] > target[clawPos]){
        return 'PICK';
    }

    
    // #5 Check if should go right 
    for(var i=clawPos; i<numOfStacks; i++){
        if(boxInClaw){
            if(boxes[i] < target[i]){
                return 'RIGHT'
            }
        }else{
            if(boxes[i] > target[i]){
                return 'RIGHT'
            }
        }
    }
    
    // #6 Check if should go left 
    for(var i=clawPos; i<numOfStacks; i--){
        if(boxInClaw){
            if(boxes[i] < target[i]){
                return 'LEFT'
            }
        }else{
            if(boxes[i] > target[i]){
                return 'LEFT'
            }
        }
    }


    
    return '';
}

/* Ignore and do not change the code below */

// game loop
while (true) {
    const clawPos = parseInt(readline());
    const boxInClaw = readline() !== '0';
    const stacks = parseInt(readline());
    const boxes = readline().split(' ').map(j => parseInt(j)).slice(0, stacks);
    const oldWrite = process.stdout.write;
    process.stdout.write = chunk => { console.error(chunk); return true }
    const action = solve(clawPos, boxes, boxInClaw);
    process.stdout.write = oldWrite;
    console.log(action);
}
/* Ignore and do not change the code above */