[python] 백준 1032 명령프롬프트

www.acmicpc.net/problem/1032

1032번: 명령 프롬프트

N=int(input())
oper = []
for i in range(N):
    oper.append(input())

index=[]
length = len(oper[0])
check=[1]*length
for i in range(length):
    for j in range(N):
        if str(oper[0])[i]!=str(oper[j])[i]:
            check[i]=0
            
    if 0 in check : 
        index.append("?")
    else: 
        index.append(str(oper[0])[i])
        
    check=[1]*length
    
for i in index:
    print(i,end="")

입력:

3

abc.txt

abc.gif

abc.aaa

 

출력:

abc.???