Compilare: main.cpp: In function 'int main()': main.cpp:42:10: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 42 | while(i<dd.size()){ | ~^~~~~~~~~~ main.cpp:45:12: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | while(j<dd.size() && dd[j]==v) | ~^~~~~~~~~~ main.cpp:71:21: warning: format '%lld' expects argument of type 'long long int', but argument 3 has type 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wformat=] 71 | fprintf(fout, "%lld\n", ans.size()); | ~~~^ ~~~~~~~~~~ | | | | long long int std::vector<std::pair<long long int, long long int> >::size_type {aka long unsigned int} | %ld