Compilare: user.cpp: In function ‘void steps(int&, int)’: user.cpp:73:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=laststep+1;(vm[i].first>=target)&&(i<vm.size());i++) ^ user.cpp: In function ‘void go(int)’: user.cpp:111:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v.size();i++) ^ user.cpp:127:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((imn<vmn.size())&&(imx<vmx.size())) ^ user.cpp:127:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((imn<vmn.size())&&(imx<vmx.size())) ^ user.cpp:129:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((vmx[imx].first>=vmn[imn].first)&&(imx<vmx.size())) ^ user.cpp:134:64: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((vmn[imn].first>=vmx[imx].first)&&(imn<vmn.size())) ^ user.cpp:140:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (;imx<vmx.size();imx++) ^ user.cpp:142:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (;imn<vmn.size();imn++) ^ user.cpp: In function ‘int main()’: user.cpp:185:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v.size();i++) ^ user.cpp:194:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v.size();i++) ^