114. Little Endian to Big Endian

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

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

    return new_val;
}

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