Keep Only the Highest Set Bit

Code

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

// Complete the function
uint16_t highest_set_bit(uint16_t reg) {
    
    for(int i=16;i>0; i--)
    {
        int comp=(reg>>i)&1;
        if (comp==1)
            // printf("%d \n",i);
            return (1u<<i);
    }

    return 0;
}

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

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

Solving Approach