Identify Trap in Signed vs Unsigned Comparison

Code

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

int safe_compare(int8_t a, uint8_t b) {
    // Your logic here

    // Cast a to int for correct comparison
    int a_int = (int)a;
    int b_int = (int)b;

    return (a_int < b_int) ? 1 : 0;
}

int main() {
    int8_t a;
    uint8_t b;
    scanf("%hhd %hhu", &a, &b);
    printf("%d", safe_compare(a, b));
    return 0;
}

Solving Approach