#include <sys/time.h>
int gettimeofday(struct timeval *tv, void *tz) { return 0; }
+void *xmalloc(size_t X) { return malloc(X); }
void srand(unsigned x) {}
double exp(double x) { return 0; }
int getc(FILE *S) { return 0; }
size_t fread(void *ptr, size_t size, size_t nmemb, FILE *stream) { return 0; }
int fseek(FILE *stream, long offset, int whence) { return 0; }
+int feof(FILE *stream) { return 0; }
int fputs(const char *s, FILE *stream) { return 0; }
int ferror(FILE *F) { return 0; }
FILE *fdopen(int fildes, const char *mode) { return 0;}