LeetCode Solutions
class Solution {
public:
string baseNeg2(int N) {
string ans;
while (N) {
ans = to_string(N & 1) + ans;
N = -(N >> 1);
}
return ans == "" ? "0" : ans;
}
};
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class Solution {
public String baseNeg2(int N) {
StringBuilder sb = new StringBuilder();
while (N != 0) {
sb.append(N & 1);
N = -(N >> 1);
}
return sb.length() > 0 ? sb.reverse().toString() : "0";
}
}
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class Solution:
def baseNeg2(self, N: int) -> str:
ans = ''
while N:
ans = str(N & 1) + ans
N = -(N >> 1)
return '0' if ans == '' else ans
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