Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:32: error: ‘strchr’ was not declared in this scope user.cpp:34: error: ‘atoll’ was not declared in this scope user.cpp:35: error: ‘strdup’ was not declared in this scope user.cpp:39: error: ‘strdup’ was not declared in this scope user.cpp:22: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:24: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:30: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp:31: warning: ignoring return value of ‘char* fgets(char*, int, FILE*)’, declared with attribute warn_unused_result user.cpp: In function ‘long long int value(char*)’: user.cpp:50: error: ‘strchr’ was not declared in this scope user.cpp:51: error: ‘strncpy’ was not declared in this scope user.cpp:54: error: ‘atol’ was not declared in this scope user.cpp: In function ‘char* find(char*)’: user.cpp:65: error: ‘strchr’ was not declared in this scope user.cpp:66: error: ‘strncpy’ was not declared in this scope user.cpp:68: error: ‘atoi’ was not declared in this scope user.cpp: In function ‘void make_number(long long int, char*)’: user.cpp:84: error: ‘strlen’ was not declared in this scope user.cpp: In function ‘int solve()’: user.cpp:108: error: ‘strlen’ was not declared in this scope user.cpp:108: error: ‘strchr’ was not declared in this scope user.cpp:113: error: ‘strcpy’ was not declared in this scope user.cpp:114: error: ‘strtok’ was not declared in this scope user.cpp:127: error: ‘atoll’ was not declared in this scope user.cpp:135: error: ‘strdup’ was not declared in this scope user.cpp: In function ‘void write()’: user.cpp:154: warning: too few arguments for format