Compilare: user.cpp: In function ‘int binarySearch(const PairVector&, double)’: user.cpp:19:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(r + step < v.size() && v[r + step].first < x) ~~~~~~~~~^~~~~~~~~~ user.cpp: In function ‘IntVector scmax(DoubleVector)’: user.cpp:35:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < v.size(); i++) ~~^~~~~~~~~~ user.cpp:41:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j + 1 == minTable.size()) ~~~~~~^~~~~~~~~~~~~~~~~~