# your code goes here
target=3
n=5
dp = [[-1]*(target+2)]*(n+1)
print(dp)
print(type(dp))
dp = [[-1] * (target+2) for _ in range(n+1)]
print(dp)
print(type(dp))
Standard input is empty
[[-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1]] <class 'list'> [[-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1], [-1, -1, -1, -1, -1]] <class 'list'>