Question

How to multiply number by 2 using bitwise operators in C++

Answer 1

#include <iostream>

int main(void) {
    int n = 8;
     
    std::cout << n << " * 2 = " << (n << 1);
       
    return 0;
}
    
       
       
       
/*
run :
   
8 * 2 = 16
   
*/

 

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