Untitled

from typing import Dict, List

def f1(lista: List[str]) -> Dict[str, List[int]]:
    dic = dict()
    for item in lista:
        dic[item] = [n for n in range(len(item))]

    return dic

def f2(dicionario: Dict[str, List[int]], letra: str) -> Dict[str, List[int]]:
    for key, value in dicionario.items():
        if letra not in key:
            continue
        for index, c in enumerate(key):
            if letra == c:
                value.remove(index)
    return dicionario