Extract and Modify Field in a 32-bit Register

Code

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    //uint32_t mask;
    //mask = ((1 << 5) - 1) << 10;
    uint32_t field;
    field = (reg >> 10) & 0x1f;
    if( field < 31)
        field++;

    reg &= ~(0x1f << 10);
    reg |= (field << 10);
    return reg;
}

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

Solving Approach