Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    return (value>>0&0xff)<<24 | (value>>8&0xff)<<16 | (value>>16&0xff)<<8 | value>>24&0xff;
}

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

Solving Approach