Compilare: main.cpp: In function 'bool capat(int)': main.cpp:11:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz[nod]==0||poz[nod]==dsu[comp[nod]].size()-1) ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'void dsu_merge(int, int)': main.cpp:26:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz[nod1]==dsu[comp[nod1]].size()-1) ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int getmex()': main.cpp:52:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<a.size();i++) ~^~~~~~~~~ main.cpp: In function 'void getdist(int, int)': main.cpp:93:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(poz[nod]+dist<dsu[comp[nod]].size()&&dist!=0) ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:85:9: warning: unused variable 'c' [-Wunused-variable] int c=comp[nod],p=poz[nod]; ^ main.cpp:85:21: warning: unused variable 'p' [-Wunused-variable] int c=comp[nod],p=poz[nod]; ^ main.cpp:86:10: warning: variable 'found' set but not used [-Wunused-but-set-variable] bool found=0; ^~~~~ main.cpp: In function 'int main()': main.cpp:152:14: warning: variable 'ok' set but not used [-Wunused-but-set-variable] bool ok=0; ^~