... printf(const char *format, );int sprintf(char *s, const char *format, );int fprintf(FILE *stream, const char *format, );int scanf(const char *format, );int fscanf(FILE *stream, const char ... File trong thu viện chuấn:#include <stdio.h>FILE *fopen(const char *filename, const char *mode);sizet fread(void *ptr, size_t size, size_t nitems, FILE *stream);sizet fwrite (const void ... *opendir(const char *pathname);struct dirent *readdir(DIR *dp);void rewinddir(DIR *dp);int closcdir(DIR *dp);long telldir(DIR *dp);void seekdir(DIR *dp, long loc);int chdir(const char *pathname);int...