public static void main ( String [ ] args ) {
  int arr [ ] = {
    2 , 1 , 5 , 6 , 3 };
    int n = arr . length ;
    int k = 3 ;
    System . out . print ( minSwap ( arr , n , k ) + "\n" ) ;
    int arr1 [ ] = {
      2 , 7 , 9 , 5 , 8 , 7 , 4 };
      n = arr1 . length ;
      k = 5 ;
      System . out . print ( minSwap ( arr1 , n , k ) ) ;
    }
    
public static void main ( String [ ] args ) { int arr [ ] = { 2 , 1 , 5 , 6 , 3 } ; int n = arr . length ; int k = 3 ; System . out . print ( minSwap ( arr , n , k ) + " \n " ) ; int arr1 [ ] = { 2 , 7 , 9 , 5 , 8 , 7 , 4 } ; n = arr1 . length ; k = 5 ; System . out . print ( minSwap ( arr1 , n , k ) ) ; }
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