what is the execution time T(n) of the 2 algorithms?

[coffee_bean]

Happy new year and peace to you all! Can you please explain to me what is the execution time T(n) of the 2 algorithms?

Algorithm 1:
for i ← 1 to n do
for j ← 1 to i do
for k ← j to i+j do
a ← a + 1

Algorithm 2:
for i ← 1 to n do
for j ← 1 to i^2 do
for k ← 1 to j do
a ← a + 1

[Salem]

http://www.seas.upenn.edu/~chinawat/teaching/2007c/lab03sup.pdf
Found with 5-seconds of google.