Validate Configuration Register Layout

Code

#include <stdio.h>

typedef struct {
    unsigned short reg;
} ConfigRegister;

int validate_config(ConfigRegister *cfg) {
    // Write logic using pointer access
    if((cfg->reg>>0&1) && ((cfg->reg>>2 & 0x11)==0x00 ||0x01||0x10) &&
     ((cfg->reg>>4 & 0xfff)==0))
    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