解题思路:
注意事项:
参考代码:
n=int(input())
for i in range(n):
a,b=map(int,input().split())
x=a//2
for i in range(b):
for i in range(x):
print(' '*i+'X'+' '*(2*(x-i)-1)+'X')
print(' '*x+'X')
for i in range(x-1,0,-1):
print(' '*i+'X'+' '*(2*(x-i)-1)+'X')
print('X'+' '*(2*x-1)+'X')
print()
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