31. Rotate Left in an 8-bit Register

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

uint8_t rotate_left(uint8_t reg, uint8_t n) {

    //read
    //modify
    for(int i=0; i<n; i++){
        // Get left most bit
        uint8_t msb = reg >> 7;
        // Shift the register right and or it with the msb
        reg = (reg << 1) | msb;
    }
    return reg;
}

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