Compilare: main.cpp: In function 'void dfs(int)': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G[nod].size();i++) ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:67:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<s.size();j++) ~^~~~~~~~~ main.cpp:98:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<s.size();j++) ~^~~~~~~~~ main.cpp:118:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v.size();i++) ~^~~~~~~~~ main.cpp:135:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<v.size();i++) ~^~~~~~~~~ main.cpp:58:9: warning: unused variable 'sol' [-Wunused-variable] int sol, i, j, x, y, put, p, n, m, tu, tv; ^~~