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有bt数据吗为什么我总是WA#include<iostream>
#include<math.h>
using namespace std;
int a[3001];
void main()
{
int n,i,j,t,k,f;
while(cin>>n)
{
f=0;
for(i=1;i<n;i++)a[i]=0;
for(i=0;i<n;i++)
{
cin>>j;
if(i==0)k=j;
else
{
t=abs(k-j);
k=j;
if(t<1||t>n-1||a[t])
{
f=1;
break;
}
else a[t]=1;
}
}
if(f)cout<<"Not jolly\n";
else cout<<"Jolly\n";
}
}
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