Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    // Write logic to swap bytes
    typedef union {
        uint32_t value;
        uint8_t bytes[4];
    } Register;

    Register reg = {value};
    uint8_t temp = 0;

    temp = reg.bytes[0];
    reg.bytes[0] = reg.bytes[3];
    reg.bytes[3] = temp;

    temp = reg.bytes[1];
    reg.bytes[1] = reg.bytes[2];
    reg.bytes[2] = temp;

    return reg.value;
}

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

Solving Approach