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:119:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (iax=0;iax<vmx.size();iax++) ^ user.cpp:121:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (iax=0;iax<vmn.size();iax++) ^ user.cpp:133:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (iax=0;iax<vmx.size();iax++) ^ user.cpp:135:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (iax=0;iax<vmn.size();iax++) ^ user.cpp: In function ‘int main()’: user.cpp:178:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v.size();i++) ^ user.cpp:187:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<v.size();i++) ^