26. 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 mask = (1u << 5)- 1 ;
    uint32_t val = mask & (reg >> 10);
    if( val < 31){
        val++;
        reg &= ~(mask << 10);
        reg |= val << 10 ;
    }

    return reg;
}

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