Compilare: main.cpp: In function 'double dfs(int)': main.cpp:71:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<g[nod].size();i++){ ~^~~~~~~~~~~~~~ main.cpp:76:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ main.cpp: In function 'int main()': main.cpp:94:42: warning: narrowing conversion of 'distanta' from 'double' to 'int' inside { } [-Wnarrowing] g[i].push_back({j,distanta}); ^ main.cpp:95:42: warning: narrowing conversion of 'distanta' from 'double' to 'int' inside { } [-Wnarrowing] g[j].push_back({i,distanta}); ^ main.cpp:103:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation] for(i=1;i<=n;i++) ^~~ main.cpp:109:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for' fout<<sol; ^~~~