Extract and Modify Field in a 32-bit Register

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    uint8_t temp = (uint8_t) ((reg >> 10U) & 0x1F);
    if(temp < 31)   temp++;
    reg &= ~(uint32_t)(0x1F << 10U);
    reg |= (uint32_t)(temp << 10U);
    return reg;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    uint32_t updated = update_register(reg);
    printf("%u", updated);
    return 0;
}