when we call this function multiple time it make mistakes,

Question

i want to select groups where no 2 elements of the group talk the same language.
the problem is with the condition:
while res[i][1] == res[i-1][1]
can you help me?

https://code.sololearn.com/ccQz7O3IvjzS/?ref=app

Answer 1

def group (x, y):
res = random.sample(seq, y)
while len(set([u[1] for u in res])) < y:
res = random.sample(seq, y)
return res

Answer 2

it works, thank you Anna