static int minimumSwaps ( int [ ] arr ) {
  int count = 0 ;
  int i = 0 ;
  while ( i < arr . length ) {
    if ( arr [ i ] != i + 1 ) {
      while ( arr [ i ] != i + 1 ) {
        int temp = 0 ;
        temp = arr [ arr [ i ] - 1 ] ;
        arr [ arr [ i ] - 1 ] = arr [ i ] ;
        arr [ i ] = temp ;
        count ++ ;
      }
    }
    i ++ ;
  }
  return count ;
}

static int minimumSwaps ( int [ ] arr ) { int count = 0 ; int i = 0 ; while ( i < arr . length ) { if ( arr [ i ] != i + 1 ) { while ( arr [ i ] != i + 1 ) { int temp = 0 ; temp = arr [ arr [ i ] - 1 ] ; arr [ arr [ i ] - 1 ] = arr [ i ] ; arr [ i ] = temp ; count ++ ; } } i ++ ; } return count ; }
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