Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    // Write logic to swap bytes
    union {
        uint32_t raw;
        uint8_t bytes[4];
    } data;
    data.raw = value;
    for (int i =0; i < 2; i++) {
        uint8_t tmp = data.bytes[i];
        data.bytes[i] = data.bytes[4-1-i];
        data.bytes[4-1-i] = tmp;
    }
    return data.raw;
}

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

Solving Approach