0789 - Max 2 Ap

Rezolvare

<syntaxhighlight lang="python" line="1"> n, m = map(int, input().split())

matrix = [] for i in range(n):

   row = list(map(int, input().split()))
   matrix.append(row)

seen = set() max_duplicate = None

for i in range(n):

   for j in range(m):
       value = matrix[i][j]
       if value in seen and (max_duplicate is None or value > max_duplicate):
           max_duplicate = value
       else:
           seen.add(value)

if max_duplicate is None:

   print("IMPOSIBIL")

else:

   print(max_duplicate)

</syntaxhighlight>