Compilare: user.cpp: In function ‘int binarySearch(const PairVector&, double)’: user.cpp:18:21: 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(IntVector)’: user.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 1; i < v.size(); i++) ~~^~~~~~~~~~ user.cpp:40:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j + 1 == minTable.size()) ~~~~~~^~~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:90:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pi < pa.size() and pj < pb.size()) ~~~^~~~~~~~~~~ user.cpp:90:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pi < pa.size() and pj < pb.size()) ~~~^~~~~~~~~~~ user.cpp:113:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pi < pa.size()) ~~~^~~~~~~~~~~ user.cpp:123:14: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(pj < pb.size()) ~~~^~~~~~~~~~~ user.cpp:133:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(i < a.size()) ~~^~~~~~~~~~ user.cpp:136:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(j < b.size()) ~~^~~~~~~~~~