Compilare: user.cpp: In function ‘bool try_erase(point*, int, int)’: user.cpp:37: warning: unused variable ‘j’ user.cpp:37: warning: unused variable ‘Len’ user.cpp: In function ‘bool test(int)’: user.cpp:64: warning: unused variable ‘j’ user.cpp:65: warning: unused variable ‘p2’ user.cpp: In function ‘int main()’: user.cpp:126: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result user.cpp:127: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:128: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result user.cpp:131: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result