Compilare: main.cpp: In function 'void adauga(Trie*, int, int)': main.cpp:42:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( j==s.size() ) return; ~^~~~~~~~~~ main.cpp: In function 'void sterge(Trie*, int)': main.cpp:63:10: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if( i==s.size() ) return; ~^~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:81:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<s.length(); j++) ~^~~~~~~~~~~ main.cpp:93:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0; j<s.size(); j++) ~^~~~~~~~~