static int minMoves ( int arr [ ] , int n ) {
  int expectedItem = n ;
  for ( int i = n - 1 ;
  i >= 0 ;
  i -- ) {
    if ( arr [ i ] == expectedItem ) expectedItem -- ;
  }
  return expectedItem ;
}

static int minMoves ( int arr [ ] , int n ) { int expectedItem = n ; for ( int i = n - 1 ; i >= 0 ; i -- ) { if ( arr [ i ] == expectedItem ) expectedItem -- ; } return expectedItem ; }
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