201. 数字范围按位与
给你两个整数 left 和 right ,表示区间 [left, right] ,返回此区间内所有数字 按位与 的结果(包含 left 、right 端点)。
示例 1:
输入:left = 5, right = 7
输出:4
示例 2:
输入:left = 0, right = 0
输出:0
示例 3:
输入:left = 1, right = 2147483647
输出:0
提示:
0 <= left <= right <= 231 - 1
来源:力扣(LeetCode)
链接:https://leetcode-cn.com/problems/bitwise-and-of-numbers-range
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代码:
from leetcode_python.utils import *
class Solution:
def __init__(self):
pass
def rangeBitwiseAnd(self, left: int, right: int) -> int:
while left < right: right &= (right - 1)
return right
def test(data_test):
s = Solution()
data = data_test # normal
# data = [list2node(data_test[0])] # list转node
return s.rangeBitwiseAnd(*data)
def test_obj(data_test):
result = [None]
obj = Solution(*data_test[1][0])
for fun, data in zip(data_test[0][1::], data_test[1][1::]):
if data:
res = obj.__getattribute__(fun)(*data)
else:
res = obj.__getattribute__(fun)()
result.append(res)
return result
if __name__ == '__main__':
datas = [
[],
]
for data_test in datas:
t0 = time.time()
print('-' * 50)
print('input:', data_test)
print('output:', test(data_test))
print(f'use time:{time.time() - t0}s')
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备注:
GitHub:https://github.com/monijuan/leetcode_python
CSDN汇总:模拟卷Leetcode 题解汇总_卷子的博客-CSDN博客
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leetcode_python.utils详见汇总页说明
先刷的题,之后用脚本生成的blog,如果有错请留言,我看到了会修改的!谢谢!
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