Coding Test - 쉬운

def solution(list):
     answer = True 
     check = False 
     list = sorted(list, key=len) 
     for i in range(0, len(list)): 
        if check: 
             break
        current = list[i]
        for j in range(i+1, len(list)): 
            comp = list[j] 
            if len(current)<len(comp) and current == comp[0:len(current)]: 
                answer = False 
                check = True 
                break 
    return answer