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 count = 0;
    while((reg >> 1) > 0){
        count++;
        reg= reg >>1;
       // printf("reg==%d\n",reg);
       // printf("count %d\n",count);
    }
    if(reg > 0){
    reg = (1<<count);
    }else{
    reg = (0<<count); 
    }
    
    return reg;
}

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

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

Solving Approach

 

 

 

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Input

44

Expected Output

32