Eroare de compilare: user.cpp:1:19: error: cstdio: No such file or directory user.cpp:2:21: error: string.h: No such file or directory user.cpp: In function ‘int main()’: user.cpp:11: error: ‘stdin’ was not declared in this scope user.cpp:11: error: ‘freopen’ was not declared in this scope user.cpp:12: error: ‘stdout’ was not declared in this scope user.cpp:13: error: ‘scanf’ was not declared in this scope user.cpp:15: warning: comparison between signed and unsigned integer expressions user.cpp:23: error: ‘printf’ was not declared in this scope