What is wrong with the following code?

int *p;//Line 1

int *q;//Line 2

p = new int [5];//Line 3

*p = 2;//Line 4

for (int i = 1; i < 5; i++)//Line 5

p[i] = p[i-1] + i;//Line 6

q = p;//Line 7

delete [ ] p;//Line 8

for (int j = 0; j < 5; j++)//Line 9

cout << q[j] << " ";//Line 10

cout << endl;//Line 11