看见更大的世界,遇见更好的自己。
See a better world to meet better for ourselves.
用A,B,C,D四个字母进行组合,三个字母为一组。组合要求:每组中
字母互不相同且每组不重复?总共有多少组?
输出:多行输出,每一行输出一组;符合要求组合的总数量。
b = ["A", "B", "C", "D"]
a = 0
for i in b:
for j in b:
for k in b:
if i != j and j != k and k != i:
print(i, j, k)
a = a + 1
print(a)
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