Borderou de evaluare (job #350815)

Compilare: user.cpp: In function ‘int main()’: user.cpp:40:32: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp:41:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] user.cpp: In function ‘int cb2(int, int, int)’: user.cpp:37:1: warning: control reaches end of non-void function [-Wreturn-type] user.cpp: In function ‘int cb3(int, int, int)’: user.cpp:26:1: warning: control reaches end of non-void function [-Wreturn-type] user.cpp: In function ‘int cb5(int, int, int)’: user.cpp:15:1: warning: control reaches end of non-void function [-Wreturn-type]