Check String Conversion by Removing One Element in Python

Suppose we have two strings s and t, we have to check whether we can get t by removing 1 letter from s.

So, if the input is like s = "world", t = "wrld", then the output will be True.

To solve this, we will follow these steps −

• i:= 0
• n:= size of s
• while i < n, do
  • temp:= substring of s[from index 0 to i-1] concatenate substring of s[from index i+1 to end]
  • if temp is same as t, then
    • return True
  • i := i + 1
• return False

Let us see the following implementation to get better understanding −

Example

 Live Demo

class Solution:
   def solve(self, s, t):
      i=0
      n=len(s)
      while(i<n):
         temp=s[:i] + s[i+1:]
         if temp == t:
            return True
         i+=1
      return False
ob = Solution()
s = "world"
t = "wrld"
print(ob.solve(s, t))

Input

"world", "wrld"

Output

True