comefrom: <gouthampradhan>array_RotateArray_1.java
code: private void reverse(int[] nums, int s, int e) {
      for (int i = s, j = e; i < j; i++, j--) {
        int temp = nums[i];
        nums[i] = nums[j];
        nums[j] = temp;
      }
    }
masked: private void var_0 ( int [ ] var_1 , int var_2 , int var_3 ) {
    for ( int var_4 = var_2 , var_5 = var_3 ;
    var_4 < var_5 ;
    var_4 ++ , var_5 -- ) {
      int var_6 = var_1 [ var_4 ] ;
      var_1 [ var_4 ] = var_1 [ var_5 ] ;
      var_1 [ var_5 ] = var_6 ;
    }
  }
  