Bit operators / << - left shift / Essential C++

#include <iostream>

int main(int argc, char **argv) {
    int a = 1;      // 0001b
    int b = a << 1; // 0010b
    
    std::cout << "a = " << a << ", b = " << b << std::endl;
}

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Bit operators / << - left shift / Essential C++

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