Validate Configuration Register Layout

Code

#include <stdio.h>

typedef struct {
    unsigned short reg;
} ConfigRegister;

int validate_config(ConfigRegister *cfg) {
    // // Write logic using pointer access
    return (((cfg->reg & 0xfff1)==1) && ((cfg->reg & 0xC)!=0xC));


    // if(!(cfg->reg & 0x1))
    //     return 0;
    // if ((cfg->reg&0xC)==0xC)
    //     return 0;
    // if ((cfg->reg)>>4)
    //     return 0;
    // return 1;

}

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

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

    return 0;
}

Solving Approach

 

 

 

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Input

0005

Expected Output

1