static void findPerm ( int n , Vector < Integer > differences ) {
  Vector < Integer > ans = new Vector < Integer > ( ) ;
  ans . clear ( ) ;
  ans . add ( 0 ) ;
  int x = 0 ;
  for ( int i = 0 ;
  i <= n - 2 ;
  ++ i ) {
    int diff = differences . get ( i ) ;
    x = x + diff ;
    ans . add ( x ) ;
  }
  Vector < Integer > anss = new Vector < Integer > ( ) ;
  for ( Integer obj : ans ) anss . add ( obj ) ;
  Collections . sort ( ans ) ;
  int flag = - 1 ;
  for ( int i = 1 ;
  i <= n - 1 ;
  ++ i ) {
    int res = ans . get ( i ) - ans . get ( i - 1 ) ;
    if ( res != 1 ) {
      flag = 0 ;
    }
  }
  if ( flag == 0 ) {
    System . out . print ( - 1 ) ;
    return ;
  }
  else {
    Map < Integer , Integer > mpp = new HashMap < > ( ) ;
    mpp . clear ( ) ;
    int j = 1 ;
    Vector < Integer > value_at_index = new Vector < Integer > ( ) ;
    for ( Integer x1 : ans ) {
      mpp . put ( x1 , j ) ;
      ++ j ;
    }
    for ( Integer x2 : anss ) {
      value_at_index . add ( mpp . get ( x2 ) ) ;
    }
    for ( Integer x3 : value_at_index ) {
      System . out . print ( x3 + " " ) ;
    }
    System . out . println ( ) ;
  }
}

static void findPerm ( int n , Vector < Integer > differences ) { Vector < Integer > ans = new Vector < Integer > ( ) ; ans . clear ( ) ; ans . add ( 0 ) ; int x = 0 ; for ( int i = 0 ; i <= n - 2 ; ++ i ) { int diff = differences . get ( i ) ; x = x + diff ; ans . add ( x ) ; } Vector < Integer > anss = new Vector < Integer > ( ) ; for ( Integer obj : ans ) anss . add ( obj ) ; Collections . sort ( ans ) ; int flag = - 1 ; for ( int i = 1 ; i <= n - 1 ; ++ i ) { int res = ans . get ( i ) - ans . get ( i - 1 ) ; if ( res != 1 ) { flag = 0 ; } } if ( flag == 0 ) { System . out . print ( - 1 ) ; return ; } else { Map < Integer , Integer > mpp = new HashMap < > ( ) ; mpp . clear ( ) ; int j = 1 ; Vector < Integer > value_at_index = new Vector < Integer > ( ) ; for ( Integer x1 : ans ) { mpp . put ( x1 , j ) ; ++ j ; } for ( Integer x2 : anss ) { value_at_index . add ( mpp . get ( x2 ) ) ; } for ( Integer x3 : value_at_index ) { System . out . print ( x3 + " ▁ " ) ; } System . out . println ( ) ; } }
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