123. Carry Flag in 8-bit Addition

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

#define OVERFLOW_LIMIT 255

void add_with_carry(uint8_t a, uint8_t b, uint8_t* result, uint8_t* carry) {
    // We detect carry beforehand    
    *carry = (b >= (OVERFLOW_LIMIT - a)) ? 1 : 0;
    *result = a + b;
}

int main() {
    uint8_t a, b, result, carry;
    scanf("%hhu %hhu", &a, &b);

    add_with_carry(a, b, &result, &carry);

    printf("%u ", result);
    printf("%u", carry);
    return 0;
}