title: Find Minimum Difference Pair 1
signature: function findMinimumDifferencePair1($arr, $n) {
source_py: def find_minimum_difference_pair_1(arr, n):
      arr = sorted(arr)
      diff = (10 ** 20)
      for i in range((n - 1)):
          if ((arr[(i + 1)] - arr[i]) < diff):
              diff = (arr[(i + 1)] - arr[i])
      return diff
source_cpp: int find_minimum_difference_pair_1(vector<int> arr, int n) {
    sort(arr.begin(), arr.end());
    int diff = INT_MAX;
    for ( int i = 0;
    i < n - 1;
    i ++ ) if ( arr [ i + 1 ] - arr [ i ] < diff ) diff = arr [ i + 1 ] - arr [ i ];
    return diff;
  }