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One more Python solution:
def capitalize(s: str) -> list: cap_s_even, cap_s_odd = "", "" for i in range(0, len(s)): if i % 2 == 0: cap_s_even+=s[i].upper() cap_s_odd+=s[i] else: cap_s_even+=s[i] cap_s_odd+=s[i].upper() return [cap_s_even, cap_s_odd]
One more Python solution: