My issue
i need vedio solution
My code
# cook your dish here
Problem Link: ALIEN-OR Practice Coding Problem - CodeChef
i need vedio solution
# cook your dish here
Problem Link: ALIEN-OR Practice Coding Problem - CodeChef
# cook your dish here
def innum():
return int(input())
def inmany():
return map(int,input().split())
def inlist():
return list(inmany())
for T in range(innum()):
N,K = inmany()
A = []
for i in range(N):
num = input()
num = int(num,2)
A.append(num)
k = (2**K)-1
l = k.bit_length()
needed = []
for i in range(l):
num = 1 << i
needed.append(num)
possible = True
if needed in A
for n in needed:
if n not in A:
possible = False
break
print("YES" if possible else "NO")