제출 #631029

#제출 시각아이디문제언어결과실행 시간메모리
631029karolb2011Cards (LMIO19_korteles)Cpython 3
16 / 100
1081 ms96704 KiB
n=int(input())
c=[]
t=0
for i in range(n):
    a=input()
    b=input()
    c.append([a,b])
for i in range(n):
    for j in  range(i+1,n):
        if c[i][0]==c[j][1] or c[i][1]==c[j][0] or c[i][0][0]==c[j][0][1] and c[i][1][0]==c[j][1][1] or c[j][0][0]==c[i][0][1] and c[j][1][0]==c[i][1][1]:
            t+=1
print(t)
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#Verdict Execution timeMemoryGrader output
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#Verdict Execution timeMemoryGrader output
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#Verdict Execution timeMemoryGrader output
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