Bit Reversal in an 8-bit Value

Code

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

uint8_t reverse_bits(uint8_t val) {
    uint8_t res=0;
    for(int i=0;i<8;i++){
      if ((val >> i) & 1) { 
            res |= (1 << (7 - i)); 
        }
    }
    return res;
}
int main() {
    uint8_t val;
    scanf("%hhu", &val);

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

Solving Approach