Bit Spreading Interleave Bits with Zeros

Code

#include <stdio.h>
#include <stdint.h>
 int ans = 0 ,ans1;
uint16_t spread_bits(uint8_t val) {
    // Your logic here
    // create a mask
    char n=0 ,req;
   // val = val ;
    while (n<8)
    {
    char ex = (val & (1<<n));
    ex = ex>>n;
    req = ex &1;
    ans1 = req ;
    ans1 = (ans1)<< (n*2);
    ans = ans | ans1 ;
    n++ ;
    }
    return ans ;

}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint16_t result = spread_bits(val);
    printf("%u", result);
    return 0;
}

Solving Approach