realtime-database

I thought the size of std::bitset<16> is 2 bytes, but it turns out it's 8 bytes

#include <bitset>
#include <iostram>

int main() {
    std::cout << sizeof(std::bitset<2>) << std::endl;
    std::cout << sizeof(std::bitset<8>) << std::endl;
    std::cout << sizeof(std::bitset<16>) << std::endl;
    std::cout << sizeof(std::bitset<32>) << std::endl;
    std::cout << sizeof(std::bitset

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