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copied!<p><code>n/5</code> will give you the number of buckets of size 5 that will be full.</p> <p><code>n%5</code> will give you the rest that couln't be placed.</p> <p>If <code>n%5 >= 2</code>, create a new bucket and place those.</p> <p>If <code>n%5 = 1</code>, create a new bucket, add it, and pick one in another bucket.</p> <p>This example demonstrates the algorithm :</p> <pre><code>public class Test { public static void main(String[] args) { place(21,5); } public static void place(int number, int sizeBucket){ int nbBuckets = number / sizeBucket; int nbLeft = number % sizeBucket; List<Bucket> lBuckets = new ArrayList<>(); for(int i = 0; i < nbBuckets; i++){ lBuckets.add(new Bucket(sizeBucket, sizeBucket)); } if(nbLeft >= 2) lBuckets.add(new Bucket(5, nbLeft)); else if (nbLeft == 1){ Bucket b = lBuckets.get(lBuckets.size()-1); b.setSize(b.getSize()-1); lBuckets.add(new Bucket(sizeBucket, nbLeft+1)); } System.out.println(lBuckets); } } class Bucket { private int capacity; private int size; public Bucket(int capacity, int size) { super(); this.capacity = capacity; this.size = size; } public int getCapacity() { return capacity; } public void setCapacity(int capacity) { this.capacity = capacity; } public int getSize() { return size; } public void setSize(int size) { this.size = size; } @Override public String toString() { return "Bucket [capacity=" + capacity + ", size=" + size + "]"; } } </code></pre> <p>Output :</p> <pre><code>[Bucket [capacity=5, size=5], Bucket [capacity=5, size=5], Bucket [capacity=5, size=5], Bucket [capacity=5, size=4], Bucket [capacity=5, size=2]] </code></pre>

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