Compilare: user.cpp: In function ‘int main()’: user.cpp:57:25: warning: unused variable ‘Aint’ [-Wunused-variable] int N, M, a[50005], Aint[200005], A, B, sol; ^ user.cpp: In member function ‘char citire::next()’: user.cpp:25:103: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] if (pointer_==buffer_+buffer_size_) {pointer_ = buffer_;fread(buffer_, 1, buffer_size_, file_);} ^