Compilare: main.cpp: In function 'void makegood(std::vector<int>)': main.cpp:29:13: warning: unused variable 'nr' [-Wunused-variable] int nr=q[i]; ^~ main.cpp: In function 'int getans(std::vector<int>, std::vector<int>)': main.cpp:55:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<sortst.size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:93:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<st.size();i++) ~^~~~~~~~~~ main.cpp:105:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<dr.size();i++) ~^~~~~~~~~~