Compilare: main.cpp: In function 'bool cuplaj(int)': main.cpp:14:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();++i) ~^~~~~~~~~~~~~~ main.cpp:22:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<v[nod].size();++i) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:41:15: warning: array subscript has type 'char' [-Wchar-subscripts] t[s[i]].push_back(i); ^ main.cpp:46:26: warning: array subscript has type 'char' [-Wchar-subscripts] for(int j=0;j<t[a].size();++j) v[t[a][j]].push_back(i); ^ main.cpp:46:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<t[a].size();++j) v[t[a][j]].push_back(i); ~^~~~~~~~~~~~ main.cpp:46:45: warning: array subscript has type 'char' [-Wchar-subscripts] for(int j=0;j<t[a].size();++j) v[t[a][j]].push_back(i); ^ main.cpp:47:26: warning: array subscript has type 'char' [-Wchar-subscripts] for(int j=0;j<t[b].size();++j) v[t[b][j]].push_back(i); ^ main.cpp:47:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<t[b].size();++j) v[t[b][j]].push_back(i); ~^~~~~~~~~~~~ main.cpp:47:45: warning: array subscript has type 'char' [-Wchar-subscripts] for(int j=0;j<t[b].size();++j) v[t[b][j]].push_back(i); ^