Compilare: main.cpp: In function 'void calc_lps(int)': main.cpp:19:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<d[cv].size();){ ~^~~~~~~~~~~~~ main.cpp: In function 'void rez_ap()': main.cpp:35:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(j==d[cv].size())ap[i].push_back(cv),j=lps[j-1]; ~^~~~~~~~~~~~~~ main.cpp: In function 'void adauga(std::__cxx11::string)': main.cpp:46:21: warning: array subscript has type 'char' [-Wchar-subscripts] if(trie[j][cv[i]]==0)trie[j][cv[i]]=++nrl; ^ main.cpp:46:39: warning: array subscript has type 'char' [-Wchar-subscripts] if(trie[j][cv[i]]==0)trie[j][cv[i]]=++nrl; ^ main.cpp:47:20: warning: array subscript has type 'char' [-Wchar-subscripts] j=trie[j][cv[i]]; ^ main.cpp: In function 'int main()': main.cpp:60:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(d[i].size()>=rn)pl[++cpl]=i; ~~~~~~~~~~~^~~~ main.cpp:68:27: warning: array subscript has type 'char' [-Wchar-subscripts] if(trie[ti][s[i-j]]){ ^ main.cpp:69:29: warning: array subscript has type 'char' [-Wchar-subscripts] ti=trie[ti][s[i-j]]; ^ main.cpp:74:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(ans[i-d[j].size()]+d[j].size()>ans[i]) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~