Bit Operations using Macros

Code

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

// Define bitwise macros here
#define     SET_BIT(reg)         ((reg) |=   (0x84))
#define     CLEAR_BIT(reg)       ((reg) &= (~ (1<<(3))))
#define     TOGGLE_BIT(reg)      ((reg) ^=   (1<<(5)))

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    SET_BIT(reg);
    CLEAR_BIT(reg);
    TOGGLE_BIT(reg);
    return reg;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", modify_register(reg));
    return 0;
}

Solving Approach

 

 

 

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Input

0

Expected Output

164