Question

How to convert binary to hexadecimal in C

Answer 1

#include <stdio.h>

int main(void) {
    long int binary = 11100, hexadecimal = 0, i = 1;
    
    while (binary != 0) {
        int remainder = binary % 10;
        hexadecimal = hexadecimal + remainder * i;
        i = i * 2;
        binary = binary / 10;
    }
   
    printf("%lX", hexadecimal);
    
    return 0;
}




/*
run:
   
1C
   
*/

 

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