Compilare: main.cpp: In function 'void melysegi(int, int)': main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<whattoremove.size();i++){ ~^~~~~~~~~~~~~~~~~~~~ main.cpp:41:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<bt[holvagyok].size();i++){ ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int dijkstra(int)': main.cpp:59:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<bt[jelenlegi].size();i++){ ~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:93:9: warning: unused variable 'sz' [-Wunused-variable] int sz=0; ^~