26. Extract and Modify Field in a 32-bit Register

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

uint32_t update_register(uint32_t reg) {
    uint32_t ans = reg & (((1<<5)-1)<<10);
    ans=ans>>10;
    if(ans<31){
        ans+=1;
        reg &= ~(((1<<5)-1)<<10);
        reg |= (ans<<10);
    }
    return reg;
}

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