static int Minimum_Operations ( int [ ] a , int n ) {
  int [ ] np = new int [ n + 1 ] ;
  np [ n ] = 0 ;
  for ( int i = n - 1 ;
  i >= 0 ;
  i -- ) {
    np [ i ] = np [ i + 1 ] ;
    if ( a [ i ] <= 0 ) np [ i ] ++ ;
  }
  int pos = 0 ;
  int ans = n ;
  for ( int i = 0 ;
  i < n - 1 ;
  i ++ ) {
    if ( a [ i ] >= 0 ) pos ++ ;
    ans = Math . min ( ans , pos + np [ i + 1 ] ) ;
  }
  return ans ;
}

static int Minimum_Operations ( int [ ] a , int n ) { int [ ] np = new int [ n + 1 ] ; np [ n ] = 0 ; for ( int i = n - 1 ; i >= 0 ; i -- ) { np [ i ] = np [ i + 1 ] ; if ( a [ i ] <= 0 ) np [ i ] ++ ; } int pos = 0 ; int ans = n ; for ( int i = 0 ; i < n - 1 ; i ++ ) { if ( a [ i ] >= 0 ) pos ++ ; ans = Math . min ( ans , pos + np [ i + 1 ] ) ; } return ans ; }
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