Rotate Left in an 8-bit Register

Code

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

uint8_t rotate_left(uint8_t reg, uint8_t n) {
    // ciruclar rotation, %
    uint8_t result = (reg << n) | (reg >> (8-n));
    result &= 0xFF;
    return result;
}
/*
0b10100000
0b00000110
0b10100110



*/


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

Solving Approach