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
    uint16_t    hsb=0;
    for(int n =0 ; n<16;n++)
    {
        if (reg & (1 << n))
         {
            hsb=n;
         }
    
    }
    reg &=(1<<hsb);
    return reg;
}

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

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

Solving Approach