Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    return ((value<<24)&0xff000000)|((value>>24)&0xff)|((value<<8)&(0x00ff0000))|((value>>8)&0x0000ff00);
}

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

Solving Approach