Compilare: main.cpp: In function 'void get_elem(int, int)': main.cpp:13:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(aux.size()==k)return; ~~~~~~~~~~^~~ main.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecin[pos].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int go_visitk(int, int)': main.cpp:34:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<kvecin[pos].size();i++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int go_visit(int, int, int)': main.cpp:43:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecin[pos].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void find_dist(int, int, int)': main.cpp:75:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecin[pos].size();i++) ~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'void find_kdist(int, int, int)': main.cpp:96:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<kvecin[pos].size();i++) ~^~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void get_nodes()': main.cpp:110:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vecin[x].size();i++) ~^~~~~~~~~~~~~~~~ main.cpp:114:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<kvecin[x].size();i++) ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:145:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<k && i<lant_x.size();i++) ~^~~~~~~~~~~~~~ main.cpp:146:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k-i-1<lant_y.size()) ~~~~~^~~~~~~~~~~~~~ main.cpp:134:26: warning: variable 'capat_y' set but not used [-Wunused-but-set-variable] pair<int,int>capat_y=find_capat(y); ^~~~~~~ main.cpp:178:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<k && i<lant_x.size();i++) ~^~~~~~~~~~~~~~ main.cpp:179:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k-i-1<lant_y.size()) ~~~~~^~~~~~~~~~~~~~ main.cpp:204:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<ans.size();i++) ~^~~~~~~~~~~ main.cpp: In function 'int go_visitk(int, int)':