Bit Reversal in an 8-bit Value

Code

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

uint8_t reverse_bits(uint8_t val) {
    // Your logic here
    uint8_t res = 0;
    for(int i = 0 ;i<=7;i++){
        uint8_t mask = (val >> i)&1 ;
        res |= (mask) << (7-i); 
    }
    return val=res;
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint8_t result = reverse_bits(val);
    printf("%u", result);
    return 0;
}

Solving Approach