Little Endian to Big Endian

Code

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

typedef union {
    uint32_t data;
    uint8_t byte[4];
} Data_32;

uint32_t convert_endian(uint32_t value) {
    // Write logic to swap bytes
    Data_32 data;
    data.data = value;

    uint8_t temp = data.byte[0];
    data.byte[0] = data.byte[3];
    data.byte[3] = temp;

    temp = data.byte[1];
    data.byte[1] = data.byte[2];
    data.byte[2] = temp;
    
    return data.data;
}

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

Solving Approach


 

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Input

305419896

Expected Output

2018915346