Compilare: user.cpp: In function ‘void updateNode(int, int, int)’: user.cpp:89:15: warning: unused variable ‘s’ [-Wunused-variable] int l, r, s, c, m; ^ user.cpp:89:18: warning: unused variable ‘c’ [-Wunused-variable] int l, r, s, c, m; ^ user.cpp: In function ‘void makeTree(int, int, int)’: user.cpp:170:47: warning: operation on ‘aint[node].AINT::s’ may be undefined [-Wsequence-point] aint [node].s = aint [node].s = e [st]; ^ user.cpp: In function ‘int main()’: user.cpp:207:32: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] myIfstream fin ("flooow.in"); ^ user.cpp:208:40: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen ("flooow.out", "w", stdout); ^ user.cpp: In constructor ‘myIfstream::myIfstream(char*)’: user.cpp:26:39: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread (buffer, 1, SIZE, input); ^ user.cpp: In member function ‘void myIfstream::advance()’: user.cpp:19:43: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] fread (buffer, 1, SIZE, input); ^ user.cpp: In member function ‘myIfstream& myIfstream::operator>>(int&)’: user.cpp:39:9: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (last == '-') ^ user.cpp: In function ‘int main()’: user.cpp:39:9: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] user.cpp:32:14: note: ‘last’ was declared here char last; ^ user.cpp:39:9: warning: ‘last’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (last == '-') ^ user.cpp:32:14: note: ‘last’ was declared here char last; ^