Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    // Your logic here
    int bit;
    for(int i= 1;i<=16;i++)
    {
        if(reg<(1<<i))
        {
            bit = i;
            //printf("%d",bit);
            break;
        }
    }
    for(int j=0;j<bit-1;j++)
    {
        reg = reg & (~(1<<j));
    }
    return reg;
}

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

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

Solving Approach