题解 | 构造数独
构造数独
https://www.nowcoder.com/practice/bf8ffcbf95f743d7bbb2dd96bafa1a3c
n, k = map(int,input().split())
for i in range(n):
for j in range(i):
print('0',end=' ')
print(k,end=' ')
for j in range(n-i-1):
print('0',end=' ')
