Python Program To Interchange First And Last Element In A List

a = [11, 10, 98, 35, 90, 46, 20]

a[0], a[-1] = a[-1], a[0]
print(a)

[20, 10, 98, 35, 90, 46, 11]

a = [11, 10, 98, 35, 90, 46, 20]

temp = a[0]
a[0] = a[-1]
a[-1] = temp
print(a)

[20, 10, 98, 35, 90, 46, 11]