c++将二进制字符串转换为整数或比较2个字符串以查找差异数量

#include <iostream>
#include <string>

int main() {
    std::string binaryString = "101010";
    int decimalNumber = std::stoi(binaryString, nullptr, 2);
    std::cout << "Decimal number: " << decimalNumber << std::endl;
    return 0;
}

#include <iostream>
#include <cstring>

int main() {
    const char* str1 = "hello";
    const char* str2 = "hella";
    int diffCount = 0;
    for (int i = 0; str1[i] != '\0' && str2[i] != '\0'; i++) {
        if (str1[i] != str2[i]) {
            diffCount++;
        }
    }
    std::cout << "Difference count: " << diffCount << std::endl;
    return 0;
}