Gaby Ivanushka(快排)

Gaby Ivanushka

Once upon a time there lived a tsar that has a daughter — Beautiful Vasilisa. There were many of the young men that wanted to marry her but she repelled all suitors. The tsar was tired of her jigs, he got angry and issued an order: "The first who solves my puzzle, will marry Vasilisa!" Ivanushka decided to try his fortune. He came to the tsar and the tsar told him: "This is a program for you. Input N numbers and the program will tell you who you should marry. I give you a day to think." Ivanuska looked at the program and got upset: there were unknown letters, omnifarious symbols. The time passed. Ivanushka has thought out nothing.

The program was as follows.

The C program

The Pascal program

#include <stdio.h> long c; long A[N]; long P(long l, long r) { long x=A[l], i=l-1, j=r+1, t; while(1) { do{--j; ++c;} while(A[j]>x); do{++i; ++c;} while(A[i]<x); if(i<j) { t=A[i]; A[i]=A[j]; A[j]=t; } else return j; } } void Q(long l, long r) { long n; if(l<r) { n=P(l,r); Q(l,n); Q(n+1,r); } } int main(void) { c=0; for(long i=0; i<N; ++i) scanf("%ld", &A[i]); Q(0,N-1); if(c==(N*N+3*N-4)/2) printf ("Beutiful Vasilisa"); else printf ("Immortal Koshcei"); return 0; }

var A:array [1..N] of longint; c:longint; i:integer; function P(l,r:longint):longint; var i,j,t,x:longint; begin x:=A[l]; i:=l-1; j:=r+1; while true do begin repeat dec(j);inc(c) until A[j]<=x; repeat inc(i);inc(c) until A[i]>=x; if i<j then begin t:=A[i]; A[i]:=A[j]; A[j]:=t end else begin P:=j; exit end end end; procedure Q(l,r:longint); var n:longint; begin if l<r then begin n:=P(l,r); Q(l,n); Q(n+1,r) end end; begin c:=0; for i:=1 to N do read(A[i]); Q(1,N); if c=(N*N+3*N-4) div 2 then writeln ('Beutiful Vasilisa') else writeln ('Immortal Koshcei'); end.

Now you know this program. You may try to help Ivanushka.

Input

The first line of an input contains a positive number N ≤ 1000.

Output

You are to write to an output N numbers in one line. The tsar's program given those numbers should output a message "Beautiful Vasilisa" The numbers should be separated with a space. If several variants are possible choose any you like.

Example

input	output
3	3 7 19

//代码就是快排。

输出一个等差数列即可

  #include <stdio.h>
  int main()
  {
      int n;
      while (scanf("%d",&n)!=EOF)
      {
          int i;
          for (i=;i<n;i++)
             printf("%d ",i);
          printf("%d\n",i);
      }
  }