Compilare: user.cpp: In function ‘int binarySearch(const IntVector&, int)’: user.cpp:18:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(r + step < v.size() && v[r + step] < x) ~~~~~~~~~^~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:61:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j == minTable.size()) ~~^~~~~~~~~~~~~~~~~~ user.cpp:29:15: warning: unused variable ‘inf’ [-Wunused-variable] const int inf = 1 << 31; ^~~