Submission #67303021

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Source Code Expand

import sys
from collections import deque


input = sys.stdin.readline
print = sys.stdout.write

# dir4 = [[-1,0],[0,1],[1,0],[0,-1]] # U: 위, R: 오른쪽, D: 아래, L: 왼쪽

def solve():
  n = int(input().rstrip())
  ss =set()
  arr = []
  for _ in range(n):
    arr.append(input().rstrip())
  for i in range(n):
    for j in range(n):
      if i == j :continue
      ss.add(arr[i]+arr[j])
  ans = len(ss)
  print("%d"%ans)




if __name__ == '__main__':
  solve()

Submission Info

Judge Result