problem-34

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef struct {
    int id;
    char data[256];
} Record;

void addRecord(FILE *file, int id, const char *data) {
    Record record;
    record.id = id;
    strcpy(record.data, data);
    fwrite(&record, sizeof(Record), 1, file);
}

void readRecords(FILE *file) {
    Record record;
    rewind(file);

    while (fread(&record, sizeof(Record), 1, file) == 1) {
        printf("ID: %d, Data: %s\n", record.id, record.data);
    }
}

int main() {
    FILE *file = fopen("sequential.dat", "wb+");
    if (!file) {
        perror("fopen");
        return 1;
    }

    addRecord(file, 1, "First record");
    addRecord(file, 2, "Second record");
    addRecord(file, 3, "Third record");

    readRecords(file);

    fclose(file);
    return 0;
}