Compilare: main.cpp: In function 'int main()': main.cpp:20:5: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=k;i++) ^~~ main.cpp:22:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' sort(f+1,f+1+k); ^~~~ main.cpp: In function 'void init()': main.cpp:44:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0;j<g[f[i]].size();j++) ~^~~~~~~~~~~~~~~ main.cpp: In function 'void djk()': main.cpp:66:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0;i<g[nod].size();i++) ~^~~~~~~~~~~~~~