pocketpy/tests/70_bisect.py
2023-03-17 11:38:22 +08:00

44 lines
1.4 KiB
Python

from bisect import bisect_left, bisect_right, insort_left, insort_right
a = [1, 1, 2, 6, 7, 8, 16, 22]
assert bisect_left(a, 23) == 8 # 23 does not exist in the list
assert bisect_left(a, 22) == 7 # 22 exists in the list
assert bisect_left(a, 0) == 0 # 0 does not exist in the list
assert bisect_left(a, 1) == 0 # 1 exists in the list
assert bisect_left(a, 5) == 3 # 5 does not exist in the list
assert bisect_left(a, 6) == 3 # 6 does exist in the list
# test bisect_right
assert bisect_right(a, 23) == 8 # 23 does not exist in the list
assert bisect_right(a, 22) == 8 # 22 exists in the list
assert bisect_right(a, 0) == 0 # 0 does not exist in the list
assert bisect_right(a, 1) == 2 # 1 exists in the list
assert bisect_right(a, 5) == 3 # 5 does not exist in the list
assert bisect_right(a, 6) == 4 # 6 does exist in the list
# test insort_left
insort_left(a, 23)
assert a == [1, 1, 2, 6, 7, 8, 16, 22, 23]
insort_left(a, 0)
assert a == [0, 1, 1, 2, 6, 7, 8, 16, 22, 23]
insort_left(a, 5)
assert a == [0, 1, 1, 2, 5, 6, 7, 8, 16, 22, 23]
insort_left(a, 1)
assert a == [0, 1, 1, 1, 2, 5, 6, 7, 8, 16, 22, 23]
# test insort_right
insort_right(a, 23)
assert a == [0, 1, 1, 1, 2, 5, 6, 7, 8, 16, 22, 23, 23]
insort_right(a, 0)
assert a == [0, 0, 1, 1, 1, 2, 5, 6, 7, 8, 16, 22, 23, 23]
insort_right(a, 5)
assert a == [0, 0, 1, 1, 1, 2, 5, 5, 6, 7, 8, 16, 22, 23, 23]
insort_right(a, 1)
assert a == [0, 0, 1, 1, 1, 1, 2, 5, 5, 6, 7, 8, 16, 22, 23, 23]