371. 两整数之和
给你两个整数 a 和 b ,不使用 运算符 + 和 - ,计算并返回两整数之和。
示例 1:
输入:a = 1, b = 2
输出:3
示例 2:
输入:a = 2, b = 3
输出:5
提示:
-1000 <= a, b <= 1000
来源:力扣(LeetCode)
链接:https://leetcode-cn.com/problems/sum-of-two-integers
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代码:
from leetcode_python.utils import *
class Solution:
def __init__(self):
pass
def getSum(self, a: int, b: int) -> int:
x = 0xFFFFFFFF
a &= x
b &= x
while b != 0:
carry = (a & b) << 1 & x
a ^= b
b = carry
return a if a<=0x7fffffff else ~(a^x)
def test(data_test):
s = Solution()
return s.getSum(*data_test)
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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