#include <stdio.h>
#include <stdlib.h>
void main(void) {
    unsigned char buffer[32768], filename[]="DIVIDED.000", dest[256];
    unsigned int size, a;
    FILE *fin, *fout;
    if ((fin = fopen(filename, "rb")) == NULL) {
        puts("DIVIDED.000 が見つかりません。"); return;
    }
    fclose (fin);
    printf("結合後のファイル名："); scanf("%s", dest);
    if ((fout = fopen(dest, "wb")) == NULL) {
        printf("エラー　%s を作成できません。\n", dest);
        return;
    }
    a = 0;
    while (1) {
        filename[8] = (a / 100) + '0';
        filename[9] = ((a % 100) / 10) + '0';
        filename[10] = (a % 10) + '0';
        if ((fin = fopen(filename, "rb")) == NULL) break;
        while (!feof(fin)) {
            size = fread(buffer, 1, (unsigned int) 32768, fin);
            fwrite(buffer, 1, size, fout);
        }
        fclose (fin);
        remove (filename);
        a ++;
    }
    fclose (fout);
}