In this Python Program, we will learn how to reverse a given list. In this program, we reverse the list with or without using the python built-in reverse() function.
Here is the source code of the program to reverse a given list
In this program, we used the python built-in function reverse(). The reverse() is used to reverse the element in the list and it does not return any value.
# Python Program to Reverse a List Using reverse() Function
NumList = []
# Take the Input From the User
Number = int(input("Enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
value = int(input("Enter the Value of %d Element: " %i))
NumList.append(value)
# Print the List Entered By the User
print("\nOriginal List: ",NumList)
NumList.reverse()
print("\nThe Result of a Reverse List = ", NumList)
Enter the Total Number of List Elements: 6
Enter the Value of 1 Element: 45
Enter the Value of 2 Element: 123
Enter the Value of 3 Element: 456
Enter the Value of 4 Element: 852
Enter the Value of 5 Element: 695
Enter the Value of 6 Element: 456
Original List: [45, 123, 456, 852, 695, 456]
The Result of a Reverse List = [456, 695, 852, 456, 123, 45]
# Python Program to Reverse a List Without Using reverse() function
NumList = []
# Take the Input From the User
Number = int(input("Enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
value = int(input("Enter the Value of %d Element: " %i))
NumList.append(value)
# Print the List Entered By the User
print("\nOriginal List: ",NumList)
j = Number - 1
i = 0
while(i < j):
temp = NumList[i]
NumList[i] = NumList[j]
NumList[j] = temp
i = i + 1
j = j - 1
print("\nThe Result of a Reverse List = ", NumList)Enter the Total Number of List Elements: 5
Enter the Value of 1 Element: 456
Enter the Value of 2 Element: 256
Enter the Value of 3 Element: 321
Enter the Value of 4 Element: 485
Enter the Value of 5 Element: 698
Original List: [456, 256, 321, 485, 698]
The Result of a Reverse List = [698, 485, 321, 256, 456]
Comments