114. Little Endian to Big Endian

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

uint32_t convert_endian(uint32_t value) {
    int bytes = 4;
    uint32_t big_endian = 0;

    for (int i = 0; i < bytes; i++) {
        if (i < bytes - 1) {
            big_endian |= (value & 0xFF);
            value >>= 8;
            big_endian <<= 8;
        }
        else {
            big_endian |= (value & 0xFF);
        }
    }
    return big_endian;
}

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