Keep Only the Highest Set Bit

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    uint16_t temp_reg =0;
    int len =0;
    for(int i =0;i<16;i++)
    {
        temp_reg = reg>>i;
        if(temp_reg !=0)
        {
            len++;
        }
    }
    temp_reg = reg;
    return ((1<<(len-1)));
}

int main() {
    uint16_t reg;
    scanf("%hu", &reg);

    uint16_t result = highest_set_bit(reg);
    printf("%hu", result);
    return 0;
}