Compilare: user.cpp: In constructor ‘mlc::mlc()’: user.cpp:157:15: warning: suggest parentheses around assignment used as truth value [-Wparentheses] query = val = index = l = r = nr_query = 0; ^ user.cpp: In function ‘void update(int)’: user.cpp:179:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; pos <= ssize; pos += lsb(pos)) ^ user.cpp: In function ‘int main()’: user.cpp:248:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for1(i, ssize) ^ user.cpp:3:35: note: in definition of macro ‘for1’ #define for1(i,n) for(int i=1; i<=n; i++) ^ user.cpp:203:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ user.cpp: In member function ‘char InParsare::read_character()’: user.cpp:33:43: 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, CHARMAX, fin); ^