Compilare: user.cpp: In instantiation of ‘bool LinearBatch<T, type>::scoate(int) [with T = long long int; TypeBatch type = (TypeBatch)0u]’: user.cpp:47:12: required from ‘void LinearBatch<T, type>::push_back(T, T) [with T = long long int; TypeBatch type = (TypeBatch)0u]’ user.cpp:103:28: required from here user.cpp:25:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] } else if(poz + 1 < drepte.size() && drepte[poz].a == drepte[poz + 1].a) { user.cpp:30:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(0 < poz && poz < drepte.size() - 1) { ~~~~^~~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:176:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d%d", &n, &k); ^ user.cpp:178:29: warning: ignoring return value of ‘int fscanf(FILE*, const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] fscanf(fin, "%d", &val[i]); ^