2WA

3 7 9 10 都RE

代码：

#include <bits/stdc++.h>
using namespace std;
int n,a[1005],vs[200000005];
bool book[1005];

int main(){
	cin >> n;
	for(int i = 1; i <= n; i++)
		cin >> a[i];
    for(int i = 1; i < n; i++){
    
        vs[i] = abs(a[i]-a[i+1]);
	 }
    for(int i = 1; i < n; i++){
    	book[vs[i]] = true;
	 }
	 for(int i = 1; i < n; i++){
		if(!book[i]){
		   cout << "Not jolly" << endl;
		}
	}
	cout << "Jolly" << endl;
	return 0;
}