26 lines
755 B
C++
26 lines
755 B
C++
#include <string>
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#include <iostream>
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#include <random>
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class Solution {
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public:
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static std::string addBinary(const std::string& a, const std::string& b) {
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char* const ret = new char[std::max(a.length(), b.length()) + 2]{};
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int cin = 0;
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for (int pos = std::max(a.length(), b.length()), posA = a.length() - 1, posB = b.length() - 1; posA >= 0 || posB >= 0; --posA, --posB, --pos) {
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ret[pos] = (((posA < 0 ? 0 : (a[posA] ^ 48)) + (posB < 0 ? 0 : (b[posB] ^ 48)) + cin) & 1) ^ 48;
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cin = ((posA < 0 ? 0 : (a[posA] ^ 48)) + (posB < 0 ? 0 : (b[posB] ^ 48)) + cin) >> 1;
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}
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if (cin)
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*ret = '1';
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std::string r(*ret ? ret : (ret + 1));
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delete[] ret;
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return r;
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}
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};
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int main() {
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std::cout << Solution::addBinary("0", "1");
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return 0;
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}
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