Compilare: user.cpp: In function ‘int main()’: user.cpp:38:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pozQ < q.size()) { ^ user.cpp:39:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pozR < r.size()) { ^ user.cpp:53:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pozQ < q.size()) { ^ user.cpp:54:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(pozR < r.size()) { ^ user.cpp:29:24: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%d", &n); ^ user.cpp:31:33: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(f, "%lld", &a[i]); ^