Submission #631709

#	Time	Username	Problem	Language	Result	Execution time	Memory
631709		karolb2011	Cards (LMIO19_korteles)	Cpython 3	55 / 100	1087 ms	9284 KiB

korteles

import sys
input = sys.stdin.readline
     
n=int(input())
k=[[[[False for i in range(26)]for j in range(26)]for m in range(26)]for _ in range(26)]
c=[]
t=0
v0=[[0 for _ in range(26)]for _ in range(26)]
v1=[[0 for _ in range(26)]for _ in range(26)]
h0=[[0 for _ in range(26)]for _ in range(26)]
h1=[[0 for _ in range(26)]for _ in range(26)]
for i in range(n):
        a=input()
        b=input()
        a0=ord(a[0])-65
        a1=ord(a[1])-65
        b0=ord(b[0])-65
        b1=ord(b[1])-65
        if k[b0][b1][a0][a1]:
            t-=1
        if k[a1][a0][b1][b0]:
            t-=1
        if a1==b0:
            if a0==b1:
                if k[a1][a0][b1][b0]:
                    t+=3
            for j in range(26):
                if k[j][a0][a0][b0]:
                    t-=1
                if k[a1][b1][b1][j]:
                    t-=1
        if a0==b1:
            for j in range(26):
                if k[a1][j][b1][a1]:
                    t-=1
                if k[b0][a0][j][b0]:
                    t-=1
        if a0==a1 and b0==b1:
            t-=1
        if a0==b0 and a1==b1:
            t-=1
        k[a0][a1][b0][b1]=True
        v0[a0][b0]+=1
        v1[a1][b1]+=1
        h0[a0][a1]+=1
        h1[b0][b1]+=1
for i in range(26):
    for j in range(26):
            t+=h0[i][j]*h1[i][j]
            t+=v0[i][j]*v1[i][j]
print(t)

• Subtask 1: 16 / 16
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 19 / 19
• Subtask 5: 0 / 25