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
    uint32_t reg_result = (reg >> 10) & 0x1F ;
    uint32_t result = 0 ;
    if(reg_result < 31)
    {
        reg_result = reg_result + 1;
        result = result & ~(0x1F << 10);
        result = result | (reg_result << 10);
        return result; 
    }
    return reg;
}

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