Validate Configuration Register Layout

Code

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


typedef struct {
    unsigned short reg;
} ConfigRegister;

int validate_config(ConfigRegister *cfg) {
    // Write logic using pointer access
    uint16_t mask = ((cfg->reg>>2) & 0x11) ; 
    if(((cfg->reg)&1) && ((((cfg->reg)>>4)&0xffff)==0) && ((mask)!=0x11))
    return 1;
    else
    return 0;
}

int main() {
    ConfigRegister cfg;
    scanf("%hx", &cfg.reg);

    int result = validate_config(&cfg);
    printf("%d", result);

    return 0;
}

Solving Approach