去重之后还剩几个
运行下面这段程序:
a = [1, 1, 2, 2, 2, 3]
k = 0
for i in range(1, len(a)):
if a[i] != a[k]:
k += 1
a[k] = a[i]
print(k + 1)
运行下面这段程序:
a = [1, 1, 2, 2, 2, 3]
k = 0
for i in range(1, len(a)):
if a[i] != a[k]:
k += 1
a[k] = a[i]
print(k + 1)
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