Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    uint8_t b0, b1, b2, b3;
    b0 = value;
    b1 = value >> 8;
    b2 = value >> 16;
    b3 = value >> 24;

    return (b0 << 24) | (b1 << 16) | (b2 << 8) | b3;
}

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

Solving Approach