Given a string A and two integer B and C.Find and return the substring of A starting from index B and ending with index C.
Question
Given a string A and two integer B and C.Find and return the substring of A starting from index B and ending with index C.
Solution
Sure, here is a step by step solution in Python:
- First, define the function with the required parameters. In Python, we define a function using the
defkeyword. Let's call our functionsubstringand it will take three parameters:A(the string),B(the starting index), andC(the ending index).
def substring(A, B, C):
- Next, we need to extract the substring from
Astarting from indexBand ending at indexC. In Python, we can do this using slicing. The syntax for slicing in Python issequence[start:stop], wherestartis the starting index andstopis the ending index. Note that the character at thestopindex is not included in the slice.
return A[B:C+1]
- Now, our function is complete. Here is the full code:
def substring(A, B, C):
return A[B:C+1]
- You can call this function with a string and the starting and ending indices to get the substring. For example:
print(substring("Hello, World!", 7, 12)) # Output: "World"
This will return the substring of "Hello, World!" starting from index 7 and ending at index 12, which is "World".
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