#include <stdio.h>
#include <stdlib.h>
int main(){
FILE *fpsrc, *fpdest;
char str[256],src[256],dest[256];
printf("コピー元：");
scanf("%s", src);
printf("コピー先：");
scanf(" %s", dest);
if ((fpsrc = fopen(src, "r")) == NULL) { puts("error"); exit(1);}
if ((fpdest = fopen(dest, "w")) == NULL) { puts("error"); exit(1);}
while (fgets(str, 256, fpsrc) != NULL) {
fputs(str, fpdest);
}
fclose(fpsrc);
fclose(fpdest);
if ((fpsrc = fopen(src, "r")) == NULL) { puts("error"); exit(1);}
while (fgets(str, 256, fpsrc) != NULL) {
printf("%s",str);
}
fclose(fpsrc);
return 0;
}