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 
    uint32_t result = 1; 
    while (result <= reg) 
    {
         result <<= 1;  
    }
    return result >> 1; //return 0; 
    }

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

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

Solving Approach