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LeetCode-Solutions/C++/binary-gap.cpp at master · pythonpeixun/LeetCode-Solutions · GitHub
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LeetCode-Solutions
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C++
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binary-gap.cpp
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binary-gap.cpp
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//
Time: O(logn) = O(1) due to n is a 32-bit number
//
Space: O(1)
class
Solution
{
public:
int
binaryGap
(
int
N) {
int
result =
0
;
int
last = -
1
;
for
(
int
i =
0
; i <
32
; ++i) {
if
((N >> i) &
1
) {
if
(last != -
1
) {
result =
max
(result, i - last);
}
last = i;
}
}
return
result;
}
};
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