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 res = (reg >> 10) & (0x1F);
    reg &= ~(((1U << 5) -1) << 10);
    return (res < 31) ? reg | ((res + 1)<<10) : reg | (res << 10);
}

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

Solving Approach