Little Endian to Big Endian

Code

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

uint32_t convert_endian(uint32_t value) {
    
    return (value&0x000000FF)<<24|
    (value&0x0000FF00)<<8|
    (value&0x00FF0000)>>8|
    (value&0xFF000000)>>24;
    
}

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

Solving Approach