Eroare de compilare: user.cpp:1:21: error: iostream.h: No such file or directory user.cpp:3:20: error: fstream.h: No such file or directory user.cpp:4: error: ‘::main’ must return ‘int’ user.cpp: In function ‘int main()’: user.cpp:7: error: ‘ifstream’ was not declared in this scope user.cpp:7: error: expected ‘;’ before ‘f’ user.cpp:8: error: ‘f’ was not declared in this scope user.cpp:13: warning: comparison between signed and unsigned integer expressions user.cpp:26: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:23: warning: suggest explicit braces to avoid ambiguous ‘else’ user.cpp:29: error: ‘cout’ was not declared in this scope user.cpp:30: error: ‘cout’ was not declared in this scope user.cpp:32: error: ‘cout’ was not declared in this scope user.cpp:34: error: ‘cout’ was not declared in this scope user.cpp:5: warning: unused variable ‘w’