Compilare: user.cpp: In constructor ‘pSums::pSums(const std::vector<int>&)’: user.cpp:20:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < u.size(); ++i)v[i] = v[i - 1] + u[i]; ^ user.cpp: In function ‘long long int goRight(int, int)’: user.cpp:56:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(; pos < ranges.size() - 1 && d - Rs.qry(st , pos - 1) > dif[pos]; ++pos) { ^ user.cpp: In function ‘int main()’: user.cpp:87:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < ranges.size() - 1; ++i)dif[i] = ranges[i + 1].first - ranges[i].second - 1; ^ user.cpp:89:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < ranges.size(); ++i)difL[i] = ranges[i].first - ranges[i - 1].second - 1; ^ user.cpp:68:7: warning: unused variable ‘curT’ [-Wunused-variable] int curT = 1; ^