Bit Operations using Macros

Code

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

// Define bitwise macros here
#define Set_bit(r,b)  r |= (1<<b)
#define Clear_bit(r,b)  r &= ~(1<<b)
#define Toggle_bit(r,b) r ^=(1<<b)

uint8_t modify_register(uint8_t reg) {
    // Apply operations in order
    Set_bit(reg,2);
    Set_bit(reg,7);
    Clear_bit(reg,3);
    Toggle_bit(reg,5);
    return reg;
}

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

Solving Approach

 

 

 

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Expected Output

164