Write a function in CPP or Python to achieve below functionality (Letter Combination of a Phone Number) about competetivepogramming HOT 7 OPEN

Please assign me

from competetivepogramming.

Hey Man i dont really have an idea how to pull request. So here is the program:
class Solution:
def letterCombinations(self, digits: str) -> List[str]:
if not digits:
return []
self.store = {"2":"abc", "3":"def", "4":"ghi", "5":"jkl", "6":"mno", "7":"pqrs", "8":"tuv", "9":"wxyz"}
self.res = []

	self.solve(digits, 0, "")
	return self.res

# here the idx is for the digits
def solve(self, digits, idx, comb):
	if idx == len(digits):
		# if so we can add the soln and terminate this call 
		self.res.append(comb)
		return
	
	# The idx for this loop shall chnage only when we found a soln and not current recursive call
	for i in range(len(self.store[digits[idx]])):
			comb += self.store[digits[idx]][i]
			
			# for every func call, we need to go to the next idx of 'digits'
			self.solve(digits, idx+1, comb)
			
			comb = comb[:-1]

from competetivepogramming.

Hey Man i dont really have an idea how to pull request. So here is the program: class Solution: def letterCombinations(self, digits: str) -> List[str]: if not digits: return [] self.store = {"2":"abc", "3":"def", "4":"ghi", "5":"jkl", "6":"mno", "7":"pqrs", "8":"tuv", "9":"wxyz"} self.res = []

	self.solve(digits, 0, "")
	return self.res

# here the idx is for the digits
def solve(self, digits, idx, comb):
	if idx == len(digits):
		# if so we can add the soln and terminate this call 
		self.res.append(comb)
		return
	
	# The idx for this loop shall chnage only when we found a soln and not current recursive call
	for i in range(len(self.store[digits[idx]])):
			comb += self.store[digits[idx]][i]
			
			# for every func call, we need to go to the next idx of 'digits'
			self.solve(digits, idx+1, comb)
			
			comb = comb[:-1]

If you want to count it for HacktoberFeast, you must have made
I think this will help you : https://www.youtube.com/watch?v=nkuYH40cjo4

from competetivepogramming.

Please merge this pr #117

from competetivepogramming.

Please assign this to me

from competetivepogramming.

Kindly assign this to me . I have an efficient solution for this and i maintain a proper comments in the code as well with least time and space complexity.

from competetivepogramming.

@soham2312 @sajal-19 Please don't wait for assigning , just make a PR

from competetivepogramming.