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
1 #include <stdio.h> 2 int main() 3 { 4 int n; 5 while (scanf("%d",&n)!=EOF) 6 { 7 int i; 8 for (i=1;i<n;i++) 9 printf("%d ",i); 10 printf("%d\n",i); 11 } 12 }
