def minimumAbsoluteDifference(arr):
    arr.sort()
    return min(abs(a - b) for a, b in zip(arr, arr[1:]))

public static int minimumAbsoluteDifference(List<Integer> arr) {
        
        Collections.sort(arr);
        
        int min = Math.abs(arr.get(0) - arr.get(1));
        
        for(int i = 0; i < arr.size() - 1; i++) {
            
            
            int diff = Math.abs(arr.get(i) - arr.get(i + 1));
            
            if(diff == 0) {
               return diff;
            }
            
            if(diff < min) {
                min = diff;
            }
        }
        
        return min;
    }

def minimumAbsoluteDifference(arr):
    # Write your code here
    arr.sort()
    li=[]
    for i in range (len(arr)-1):
        li.append(abs(arr[i]-arr[i+1]))
    return min(li)