Compilare: user.cpp: In function ‘int main()’: user.cpp:49:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<lc.size();i++){ ^ user.cpp:53:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<dif.size(); i++){ ^ user.cpp:70:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<lc.size();k++){ ^ user.cpp:72:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<lc.size();i++)if(i!=k) l.push_back(lc[i]); ^ user.cpp:88:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<l.size();i++)n1=n2=n1*10+l[i]; ^ user.cpp:90:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<dif.size(); i++){ ^ user.cpp:109:17: warning: ‘ans2’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<ans1<<endl<<ans2<<endl<<difmin; ^ user.cpp:109:5: warning: ‘ans1’ may be used uninitialized in this function [-Wmaybe-uninitialized] g<<ans1<<endl<<ans2<<endl<<difmin; ^