>>874
struct data{
    char name[21];
    int  weight,height;
};
main(_,filename){
    struct data dat;
    void*fp;
    printf("filename? ");scanf("%d",filename);
    printf("name    ? ");gets(dat.name);
    printf("height  ? ");scanf("%d",&dat.weight);
    printf("weight  ? ");scanf("%d",&dat.height);
    fprintf(fp=fopen(filename,"a"),"%s %d %d\n",dat.name,dat.weight,dat.height);
    fclose(fp);
}