10038 - Jolly Jumpers

#include <stdio.h>
#include <stdlib.h>

int main()
    {
    long input,a[3002],p,sum,k[3002],get;
    while(scanf("%ld", &input)== 1)
         {
         sum = 0;
         get = 0;
         p=input*(input-1)/2;
         scanf("%ld",&a[0]);
         for(long i=1;i<input;i++)
               {
               scanf("%ld",&a[i]);
               k[i]=abs(a[i-1]-a[i]);
               sum += k[i];
               }
         for(long j=1;j<input;j++)
            {
            for (long p=j+1;p<input;p++)
                {
                if((k[j]==k[p]) || k[j] > input)
                  get=1;
                }
            }

         if(p == sum && get==0) printf("Jolly");
         else printf("Not jolly");
         printf("\n");
         } // End of while
    }