Extract Bit Field from 16-bit Register

Code

#include <stdio.h>
#include <stdint.h>

uint8_t extract_field(uint16_t reg) 
{
    return (uint8_t)((reg>>4)&(0x1F)); //reg>>4: this will help to get 4bits onto position:0. 
    //Then we can directly perform AND with 0x1F,to get data from the repsective 5 bits.
}

int main() {
    uint16_t reg;
    scanf("%hx", &reg);
    printf("%u", extract_field(reg));
    return 0;
}

Solving Approach