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  1. import sys
  2.  
  3. lines = sys.stdin.readlines()
  4.  
  5. n = int(lines[0].strip())
  6. print(n)
  7. matrix = [[0] * n for _ in range(n)]
  8.  
  9. for i in range(1, n + 1):
  10. line = list(map(int, lines[i].strip().split()))
  11. matrix = [0] * n
  12. for j in line:
  13. matrix[j] = 1
  14. print(" ".join(map(str, matrix)))
Success #stdin #stdout 0.04s 9744KB
stdin
5
2 4
0 4
4
0
1 2
stdout
5
0 0 1 0 1
1 0 0 0 1
0 0 0 0 1
1 0 0 0 0
0 1 1 0 0