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
    uint8_t mask = 0x1f;
    uint32_t val = (reg >> 10) & mask;
    if (val < 31) {
        reg &= ~(mask << 10);
        reg |= ((val + 1) & mask ) << 10;
    }
    return reg;
}

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

Solving Approach