Compilare: main.cpp: In function 'int get_dist(int, int, int, int)': main.cpp:15:14: warning: unused variable 'infds' [-Wunused-variable] bool infds=1; ^~~~~ main.cpp: In function 'bool posibil(int)': main.cpp:40:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<=v[1].size();i++) ~^~~~~~~~~~~~~ main.cpp:44:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[2].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:77:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v[i].size();j++) ~^~~~~~~~~~~~ main.cpp: In function 'int get_dist(int, int, int, int)': main.cpp:34:1: warning: control reaches end of non-void function [-Wreturn-type] } ^