Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:13: error: ‘scanf’ was not declared in this scope user.cpp:12: warning: unused variable ‘i’ user.cpp: In function ‘void solve()’: user.cpp:22: warning: comparison between signed and unsigned integer expressions user.cpp:37: error: ‘printf’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:42: error: ‘stdin’ was not declared in this scope user.cpp:42: error: ‘freopen’ was not declared in this scope user.cpp:43: error: ‘stdout’ was not declared in this scope