Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value)
{
    uint32_t result =0u;
    
    result |= ((value & 0x000000FF) << 24); //b0(orginally in the bottom) ->top
    result |= ((value & 0x0000FF00) << 8); //b1(orginally in the 3rd bit spot) -> second
    result |= ((value & 0x00FF0000) >> 8); //b2(orginally in the 2nd bit spot) -> third
    result |= ((value & 0xFF000000) >> 24); //b3(orginally in the top) -> bottom
    
    return result;
}

int main() {
    uint32_t val;
    scanf("%u", &val);
    printf("%u", convert_endian(val));
    return 0;
}

Solving Approach