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 ‘int main()’: user.cpp:96:38: 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:98:34: 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:77:7: warning: unused variable ‘curT’ [-Wunused-variable] int curT = 1; ^