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 x ;
    int j=0;
    for(int i=0;i<16;i++){
        x  = reg & (1<<i);
        if((x>>i) == 1)
        {
            j=i;
        }

        

    }//end for 
 if(j ==0) 
 {
    return 0;
 }
    return (1<<j);
}

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

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

Solving Approach