Eroare de compilare: user.cpp:1:18: error: Stdio.h: No such file or directory user.cpp: In function 'void read()': user.cpp:10: error: 'stdin' was not declared in this scope user.cpp:10: error: 'fgets' was not declared in this scope user.cpp: In function 'void solve()': user.cpp:41: error: 'printf' was not declared in this scope user.cpp: In function 'int main()': user.cpp:45: error: 'stdin' was not declared in this scope user.cpp:45: error: 'freopen' was not declared in this scope user.cpp:46: error: 'stdout' was not declared in this scope user.cpp:49: error: 'fclose' was not declared in this scope