Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t val) {
    // Write logic to swap bytes
    val = ((val & 0xFF000000)>>24)|
          ((val & 0x00FF0000)>>8) |
          ((val & 0x0000FF00)<<8)|
          ((val & 0x000000FF)<<24);
    return val;
}

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

Solving Approach