ABC279 C - RANDOM
提出
code: python
from collections import defaultdict
d1 = defaultdict(int)
d2 = defaultdict(int)
h, w = map(int,input().split())
for i in range(w):
tmp1 = ""
tmp2 = ""
for j in range(h):
for k in d1.keys():
print("No")
exit()
print("Yes")