Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    // Write logic to swap bytes
    int i, j;
    char *ptr = (char *)&value;
    char temp;
    for(i = 0, j = sizeof(value)-1; i < (sizeof(value)/2); i++, j--)
    {
        temp       = *(ptr + i);
        *(ptr + i) = *(ptr + j);
        *(ptr + j) = temp;
    }
    return value;
}

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

Solving Approach