31. Rotate Left in an 8-bit Register

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

uint8_t rotate_left(uint8_t reg, uint8_t n) {
    // Your code here

    for(int i=0; i<n; i++)
    {
        uint8_t ch = ((reg & (1<<7)) >> 7);
        reg <<= 1 ;
        reg |= ch;
    }
    return reg;
}

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