Compilare: user.cpp: In function ‘bool isMinlex(int, int)’: user.cpp:30:9: warning: unused variable ‘i’ [-Wunused-variable] int i; ^ user.cpp: In function ‘bool isMinlex1(std::vector<int>, std::vector<int>)’: user.cpp:44:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s1.size() && i<s2.size();++i) ^ user.cpp:44:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<s1.size() && i<s2.size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:5:11: warning: unused variable ‘first’ [-Wunused-variable] #define x first ^ user.cpp:63:8: note: in expansion of macro ‘x’ int n,x,y,i,j,h,s1,s2,ind,p; ^ user.cpp:6:11: warning: unused variable ‘second’ [-Wunused-variable] #define y second ^ user.cpp:63:10: note: in expansion of macro ‘y’ int n,x,y,i,j,h,s1,s2,ind,p; ^ user.cpp:63:24: warning: unused variable ‘ind’ [-Wunused-variable] int n,x,y,i,j,h,s1,s2,ind,p; ^