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leetcode-algorithms/src/DivideTwoIntegers.java at master · anishLearnsToCode/leetcode-algorithms · GitHub
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src
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DivideTwoIntegers.java
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DivideTwoIntegers.java
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// https://leetcode.com/problems/divide-two-integers
// T: O(A / B)
// S: O(1)
public
class
DivideTwoIntegers
{
public
int
divide
(
int
A
,
int
B
) {
if
(
A
==
1
<<
31
&&
B
== -
1
)
return
(
1
<<
31
) -
1
;
int
a
=
Math
.
abs
(
A
),
b
=
Math
.
abs
(
B
),
res
=
0
,
x
=
0
;
while
(
a
-
b
>=
0
) {
for
(
x
=
0
;
a
- (
b
<<
x
<<
1
) >=
0
;
x
++);
res
+=
1
<<
x
;
a
-=
b
<<
x
;
}
return
(
A
>
0
) == (
B
>
0
) ?
res
: -
res
;
}
}
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