题解 | #蛇形矩阵#
蛇形矩阵
https://www.nowcoder.com/practice/649b210ef44446e3b1cd1be6fa4cab5e
n=int(input())
a=1
for i in range(n):
m=n-i
a=a+i
k=a
print(a,end=' ')
for j in range(m-1):
a=a+2+j+i
print(a,end=' ')
if j==m-2:
print()
a=k
