18. Rotate Right in a 32-bit Register

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

uint32_t rotate_right(uint32_t reg, uint8_t n) {
    n %= 32;  // Ensure within 32-bit range
    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;
}

• Right shift to rotate the register.
• Left shift (32 - n) to bring the rotated bits to the front.
• Combine them using bitwise OR.