Eroare de compilare: user.cpp:2:21: error: iostrean.h: No such file or directory user.cpp:58:2: warning: no newline at end of file user.cpp: In function 'void flipit()': user.cpp:22: error: 'suma' cannot be used as a function user.cpp: At global scope: user.cpp:44: warning: ISO C++ forbids declaration of 'main' with no type user.cpp: In function 'int main()': user.cpp:47: error: invalid conversion from 'char' to 'const char*' user.cpp:47: error: initializing argument 2 of 'FILE* freopen(const char*, const char*, FILE*)' user.cpp:48: error: invalid conversion from 'char' to 'const char*' user.cpp:48: error: initializing argument 2 of 'FILE* freopen(const char*, const char*, FILE*)' user.cpp:49: error: 'cin' was not declared in this scope user.cpp:57: error: 'cout' was not declared in this scope