Compilare: user.cpp: In function ‘int main()’: user.cpp:103:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (vect.size() < k) ^ user.cpp:107:56: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (unsigned int j = 0;j < vect.size() && j < k;++j) ^ user.cpp:70:36: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d%d", &n ,&m, &k); ^ user.cpp:73:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d", vals + i); ^ user.cpp:78:34: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(in,"%d%d", &x, &y); ^