Bit Spreading Interleave Bits with Zeros

Code

#include <stdio.h>
#include <stdint.h>

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t new_val = val;
    new_val = (new_val | (new_val <<4)) & 0x0F0F;
    new_val = (new_val | (new_val <<2)) & 0x3333;
    new_val = (new_val | (new_val <<1)) & 0x5555;

    return new_val;


}

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

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

Solving Approach

 

 

 

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Input

202

Expected Output

20548