Eroare de compilare: user.cpp: In function ‘void citire()’: user.cpp:28: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result user.cpp: In function ‘void solve()’: user.cpp:34: error: ‘strchr’ was not declared in this scope user.cpp:45: error: ‘strlen’ was not declared in this scope user.cpp:47: error: ‘strcpy’ was not declared in this scope user.cpp: In function ‘void erase(int, int)’: user.cpp:80: error: ‘strcpy’ was not declared in this scope user.cpp: In function ‘void insert(int)’: user.cpp:85: error: ‘strcpy’ was not declared in this scope user.cpp:87: error: ‘strcat’ was not declared in this scope user.cpp: In function ‘void transform(int, int)’: user.cpp:136: error: ‘memset’ was not declared in this scope user.cpp:140: error: ‘strlen’ was not declared in this scope user.cpp:144: error: ‘itoa’ was not declared in this scope user.cpp:149: error: ‘strcat’ was not declared in this scope