Increasing Array

n = int(input())
inputs = [int(x) for x in (input()).split(" ")]

turns = 0

if n == 0:
    print(0)
else:
    for i in range(1, len(inputs)):
        turns += max(0, inputs[i - 1] - inputs[i])

    print(turns)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: WRONG ANSWER

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: ACCEPTED

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: ACCEPTED