Coding with Ryan

simple code #include<iostream> using namespace std; int main(){ int t; int arr[3001]; while(cin >> t){ for(int i = 0; i < t; i++) cin >> arr[i]; int flag = 0, mark[3001]={}; for(int i = 0; i < t - 1; i++) if(abs(arr[i]-arr[i+1]) < t) mark[abs(arr[i]-arr[i+1])]++; for(int i = 1; i < t; i++) if(mark[i] != 1) flag = 1; if(flag) cout << "Not jolly" << endl; else cout << "Jolly" << endl; } }