32. Rotate Right in a 32-bit Register

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

uint32_t rotate_right(uint32_t reg, uint8_t n) {
    /*uint32_t bm = reg & ((1<<n)-1);
    reg = reg>>n;
    bm = bm<<(32-n);
    reg = reg | bm; */
    return reg>>n | reg << (32-n);     
}

int main() {
    uint32_t reg;
    uint8_t n;
    scanf("%u %hhu", &reg, &n);
    printf("%u", rotate_right(reg, n));
    return 0;
}