user
Explain the following
---
assistant
= int(input())
for _ in range(t):
n = int(input())
arr = list(map(int, input().split()))
print(max(arr) - min(arr))
Explain the following
---
= int(input())
for _ in range(t):
n = int(input())
arr = list(map(int, input().split()))
print(max(arr) - min(arr))