114. Little Endian to Big Endian

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

uint32_t convert_endian(uint32_t value) {
    // Write logic to swap bytes
    uint32_t mask = (1U << 8) - 1U;
    uint32_t result = 0;
    for(int i=0; i<4; i++){
        result <<= 8;
        result |= value & mask;
        value >>= 8;
    }
    return result;
}
/*
uint32_t convert_endian(uint32_t value) {
    uint32_t byte0 = (value & 0x000000FF) << 24;
    uint32_t byte1 = (value & 0x0000FF00) << 8;
    uint32_t byte2 = (value & 0x00FF0000) >> 8;
    uint32_t byte3 = (value & 0xFF000000) >> 24;

    return byte0 | byte1 | byte2 | byte3;
}
*/

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