#include <stdio.h>
#include <stdlib.h>
int main() {
    FILE *fp = fopen("hoge.c", "w");
    fputs("#include <stdio.h>\n", fp);
    fputs("int main() { puts(\"0\"); return 0; }\n", fp);
    fclose(fp);
    system("gcc hoge.c -o hoge; ./hoge");
    return 0;
}