Lesson 1

# Write a function to reverse a string

string = 'This is the string'
length_of_the_string = len(string)
print(string[10])  # Prints the 11th character in the string, 0 indexed

print(range(10, 5, -1))  # Prints the [10, 9, 8, 7, 6]
for i in range(3):
    print(string[i]) # Prints the ith character
    
print(range(len(string))) # Prints array of integers from 0 to n where n is the length of the string

# So use these functions and try to write a function to print the reverse of a string



# Method 1: Prints one character in  each line (prints column wise)
def reverse_string(string):
   
    length_of_the_string = len(string)
    for i in range(len(string)- 1, -1, -1):
        print(string[i])
        
string = 'This is the string'
reverse_string(string)


# Method 2: Prints all the characters in a single line

def reverse_string(string):
    reversed_string = ''
    length_of_the_string = len(string)
    for i in range(len(string) - 1, -1, -1):
        reversed_string += string[i]
    return reversed_string

string = 'This is the string'
print(reverse_string(string))


# Method 3: 

def reverse_string(string):
    return string[::-1]

string = 'This is the string'
print(reverse_string(string))